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swift-mirror/benchmark/single-source/KeyPathPerformanceTests.swift
fibrechannelscsi 2d052a0826 An additional benchmark for KeyPath read performance. (#61795) 
* Added a benchmark for KeyPaths where trivially-typed memory is preceded by non-trivially-typed memory.

* Reduces the workload of run_KeyPathClassStructs by a factor of 4.

The reported time was 1847 us.
2022-11-07 16:52:25 -06:00

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//===--- KeyPathPerformanceTests.swift -------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import TestsUtils
public let benchmarks = [
BenchmarkInfo(
name: "KeyPathNestedStructs",
runFunction: run_KeyPathNestedStructs,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
BenchmarkInfo(
name: "KeyPathDirectAccess",
runFunction: run_testDirectAccess,
tags: [.validation, .api, .skip],
setUpFunction: setupSingleton
),
BenchmarkInfo(
name: "KeyPathReadPerformance",
runFunction: run_testKeyPathReadPerformance,
tags: [.validation, .api],
setUpFunction: setupSingleton
),
BenchmarkInfo(
name: "KeyPathWritePerformance",
runFunction: run_testKeyPathWritePerformance,
tags: [.validation, .api],
setUpFunction: setupSingleton
),
BenchmarkInfo(
name: "KeyPathsSmallStruct",
runFunction: run_testKeyPathSmallStruct,
tags: [.validation, .api],
setUpFunction: setupSingleton
),
BenchmarkInfo(
name: "KeyPathMutatingGetset",
runFunction: run_KeyPathMutatingGetset,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
BenchmarkInfo(
name: "KeyPathGet",
runFunction: run_KeyPathGet,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
BenchmarkInfo(
name: "KeyPathOptionals",
runFunction: run_KeyPathOptionals,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
BenchmarkInfo(
name: "KeyPathNestedClasses",
runFunction: run_KeyPathNestedClasses,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
BenchmarkInfo(
name: "KeyPathClassStructs",
runFunction: run_KeyPathClassStructs,
tags: [.validation, .api],
setUpFunction: setupKeyPathNestedStructs
),
]
/**
There are several types of KeyPathComponents.
The following table indicates which type is featured in which benchmark.
Note that some types may be observed in other benchmarks as well.
| KeyPathComponent Type |Featured in Benchmark |
|-----------------------|:---------------------------------|
| struct |*run_KeyPathNestedStruct()* |
| class |*run_KeyPathNestedClasses()* |
| get |*run_KeyPathGet()* |
| mutatingGetset |*run_KeyPathMutatingGetset()* |
| nonmutatingGetset |*run_KeyPathNonmutatingGetset()* |
| optionalChain |*run_KeyPathOptionals()* |
| optionalForce |*run_KeyPathOptionals()* |
| optionalWrap |*run_KeyPathOptionals()* |
*/
let numberOfElementsForNestedStructs = 20000
let expectedIntForNestedItems = 3
// Make it easy to switch between primitives of different types (Int, Float, Double, etc.).
typealias ElementType = Double
// The purpose of this class is to hold arrays used during the course of the benchmarks.
// This is to avoid storing them in the global scope, which can slow things down.
class FixedSizeArrayHolder {
var fixedSizeArray100: FixedSizeArray100<ElementType>
var fixedSizeArray10: FixedSizeArray10<ElementType>
var mainArrayForNestedStructs: [A]
var mainArrayForClassStructs: [D1]
var arrayForMutatingGetset: [MutatingGetsetNested1]
var arrayForGet: [GetNested1]
var arrayForOptionals: [Optional1]
var arrayForNestedClasses: [C1]
var arrayForNonMutatingGetset: [M]
var keypathForMutatingGetSet: WritableKeyPath<MutatingGetsetNested1, Int>
var keypathForGet: KeyPath<GetNested1, Int>
var keypathForOptional: KeyPath<Optional1, Int?>
var keypathForNestedClasses: KeyPath<C1, Int>
var keypathForNonMutatingGetset: WritableKeyPath<M, Int>
var keypathForClassStructs: WritableKeyPath<D1, Int>
// Same order as in KeyPathWritePerformance
var kp46: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp43: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp81: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp31: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp35: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp14: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp51: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp24: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp90: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp80: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp47: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp92: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp78: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp79: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp48: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp64: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp65: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp19: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp66: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp10: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp89: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp16: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp06: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp26: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp83: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
// Same order as in KeyPathReadPerformance, with duplicates removed.
var kp99: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp27: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp09: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp84: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp22: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp82: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp86: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp49: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp18: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp97: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp69: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp76: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp32: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp52: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp87: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp67: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp12: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp21: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp77: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp40: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp60: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
var kp50: WritableKeyPath<FixedSizeArray100<ElementType>, ElementType>
// Same order as in KeyPathSmallStruct.
var kp0: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp1: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp2: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp3: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp4: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp5: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp6: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp7: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp8: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
var kp9: WritableKeyPath<FixedSizeArray10<ElementType>, ElementType>
static let shared = FixedSizeArrayHolder()
init() {
fixedSizeArray100 = initializeFixedSizeArray100()
fixedSizeArray10 = initializeFixedSizeArray10()
mainArrayForNestedStructs = [A]()
mainArrayForClassStructs = [D1]()
arrayForMutatingGetset = [MutatingGetsetNested1]()
arrayForGet = [GetNested1]()
arrayForOptionals = [Optional1]()
arrayForNestedClasses = [C1]()
arrayForNonMutatingGetset = [M]()
kp46 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 46))
kp43 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 43))
kp81 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 81))
kp31 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 31))
kp35 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 35))
kp14 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 14))
kp51 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 51))
kp24 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 24))
kp90 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 90))
kp80 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 80))
kp47 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 47))
kp92 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 92))
kp78 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 78))
kp79 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 79))
kp48 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 48))
kp64 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 64))
kp65 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 65))
kp19 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 19))
kp66 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 66))
kp10 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 10))
kp89 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 89))
kp16 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 16))
kp06 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 06))
kp26 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 26))
kp83 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 83))
kp99 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 99))
kp27 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 27))
kp09 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 09))
kp84 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 84))
kp22 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 22))
kp82 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 82))
kp86 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 86))
kp49 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 49))
kp18 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 18))
kp97 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 97))
kp69 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 69))
kp76 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 76))
kp32 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 32))
kp52 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 52))
kp24 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 24))
kp87 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 87))
kp67 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 67))
kp65 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 65))
kp43 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 43))
kp12 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 12))
kp21 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 21))
kp77 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 77))
kp40 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 40))
kp60 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 60))
kp50 = identity(FixedSizeArray100<ElementType>.getKeypathToElement(index: 50))
kp0 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 0))
kp1 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 1))
kp2 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 2))
kp3 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 3))
kp4 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 4))
kp5 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 5))
kp6 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 6))
kp7 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 7))
kp8 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 8))
kp9 = identity(FixedSizeArray10<ElementType>.getKeypathToElement(index: 9))
keypathForMutatingGetSet = identity(\MutatingGetsetNested1.nestedItem.nestedItem.nestedItem
.nestedItem.storage)
keypathForGet = identity(\GetNested1.nestedItem.nestedItem.nestedItem.nestedItem.storage)
keypathForOptional = identity(\Optional1._nestedItemStorage?!._nestedItemStorage?!
._nestedItemStorage?!._nestedItemStorage?!._storage)
keypathForNestedClasses = identity(\C1.r.r.r.r.a)
keypathForNonMutatingGetset = identity(\M.n.o.p.q.q)
keypathForClassStructs = identity(\D1.b.c.d.e.e)
}
}
// Setup Functions.
public func setupKeyPathNestedStructs() {
let holder = FixedSizeArrayHolder.shared
for _ in 0 ..< numberOfElementsForNestedStructs {
let instance = A(a: 0, b: B(b: 0, c: C(c: 0, d: D(d: 0, e: E(e: expectedIntForNestedItems)))))
holder.mainArrayForNestedStructs.append(instance)
let classStructInstance = D1(b: D2(b: 0, c: D3(c: 0, d: D4(d: 0,
e: D5(e: expectedIntForNestedItems)))))
holder.mainArrayForClassStructs.append(classStructInstance)
var mutatingGetsetInstance = MutatingGetsetNested1()
mutatingGetsetInstance.nestedItem.nestedItem.nestedItem.nestedItem
.storage = expectedIntForNestedItems
holder.arrayForMutatingGetset.append(mutatingGetsetInstance)
holder.arrayForGet.append(GetNested1())
holder.arrayForOptionals.append(Optional1())
holder.arrayForNestedClasses.append(C1())
holder.arrayForNonMutatingGetset
.append(M(n: N(o: O(p: P(q: Q(q: expectedIntForNestedItems))))))
}
}
public func setupSingleton() {
blackHole(FixedSizeArrayHolder.shared)
}
// We would like to compute the sums of the arrays once the iterations finish,
// and doing it this way it likely faster than using keypaths via getKeypathToElement().
func computeSumOfFixedSizeArray100(fixedSizeArray100: inout FixedSizeArray100<ElementType>)
-> ElementType
{
var sum = ElementType(0)
withUnsafeBytes(of: fixedSizeArray100) {
var pointer = $0.baseAddress.unsafelyUnwrapped
for _ in 0 ..< fixedSizeArray100.count {
sum += pointer.assumingMemoryBound(to: ElementType.self).pointee
pointer = pointer.advanced(by: MemoryLayout<ElementType>.size)
}
}
return sum
}
func computeSumOfFixedSizeArray10(fixedSizeArray10: inout FixedSizeArray10<ElementType>)
-> ElementType
{
var sum = ElementType(0)
withUnsafeBytes(of: fixedSizeArray10) {
var pointer = $0.baseAddress.unsafelyUnwrapped
for _ in 0 ..< fixedSizeArray10.count {
sum += pointer.assumingMemoryBound(to: ElementType.self).pointee
pointer = pointer.advanced(by: MemoryLayout<ElementType>.size)
}
}
return sum
}
// Used for run_KeyPathNestedStructs().
struct A {
var a: Int
var b: B
}
struct B {
var b: Int
var c: C
}
struct C {
var c: Int
var d: D
}
struct D {
var d: Int
var e: E
}
struct E {
var e: Int
}
// Used for run_KeyPathClassStruct().
class D1 {
var a: Int
var b: D2
init(b: D2)
{
a = 0
self.b = b
}
}
struct D2 {
var b: Int
var c: D3
}
struct D3 {
var c: Int
var d: D4
}
struct D4 {
var d: Int
var e: D5
}
struct D5 {
var e: Int
}
// Used for run_KeyPathNestedClasses()
class C1 {
let a: Int = 0
let r: C2 = .init()
class C2 {
let b: Int = 0
let r: C3 = .init()
class C3 {
let a: Int = 0
let r: C4 = .init()
class C4 {
let a: Int = 0
let r: C5 = .init()
class C5 {
let a: Int = expectedIntForNestedItems
}
}
}
}
}
// Used for run_KeyPathNonmutatingGetset()
class M {
var n: N
init(n: N) { self.n = n }
}
class N {
var o: O
init(o: O) { self.o = o }
}
class O {
var p: P
init(p: P) { self.p = p }
}
class P {
var q: Q
init(q: Q) { self.q = q }
}
class Q {
var q: Int
init(q: Int) { self.q = q }
}
// Used for run_KeyPathMutatingGetset()
struct MutatingGetsetNested1 {
var _storage: Int
var _nestedItemStorage: MutatingGetsetNested2
var storage: Int {
get { return _storage }
set { _storage = newValue }
}
var nestedItem: MutatingGetsetNested2 {
get { return _nestedItemStorage }
set { _nestedItemStorage = newValue }
}
init() {
_storage = 0
_nestedItemStorage = MutatingGetsetNested2()
}
}
struct MutatingGetsetNested2 {
var _storage: Int
var _nestedItemStorage: MutatingGetsetNested3
var storage: Int {
get { return _storage }
set { _storage = newValue }
}
var nestedItem: MutatingGetsetNested3 {
get { return _nestedItemStorage }
set { _nestedItemStorage = newValue }
}
init() {
_storage = 0
_nestedItemStorage = MutatingGetsetNested3()
}
}
struct MutatingGetsetNested3 {
var _storage: Int
var _nestedItemStorage: MutatingGetsetNested4
var storage: Int {
get { return _storage }
set { _storage = newValue }
}
var nestedItem: MutatingGetsetNested4 {
get { return _nestedItemStorage }
set { _nestedItemStorage = newValue }
}
init() {
_storage = 0
_nestedItemStorage = MutatingGetsetNested4()
}
}
struct MutatingGetsetNested4 {
var _storage: Int
var _nestedItemStorage: MutatingGetsetNested5
var storage: Int {
get { return _storage }
set { _storage = newValue }
}
var nestedItem: MutatingGetsetNested5 {
get { return _nestedItemStorage }
set { _nestedItemStorage = newValue }
}
init() {
_storage = 0
_nestedItemStorage = MutatingGetsetNested5()
}
}
struct MutatingGetsetNested5 {
var _storage: Int
var storage: Int {
get { return _storage }
set { _storage = newValue }
}
init() {
_storage = 10
}
}
// Used for run_KeyPathGet().
struct GetNested1 {
var _storage: Int
var _nestedItemStorage: GetNested2
var storage: Int { return _storage }
var nestedItem: GetNested2 { return _nestedItemStorage }
init() {
_storage = 0
_nestedItemStorage = GetNested2()
}
}
struct GetNested2 {
var _storage: Int
var _nestedItemStorage: GetNested3
var storage: Int { return _storage }
var nestedItem: GetNested3 { return _nestedItemStorage }
init() {
_storage = 0
_nestedItemStorage = GetNested3()
}
}
struct GetNested3 {
var _storage: Int
var _nestedItemStorage: GetNested4
var storage: Int { return _storage }
var nestedItem: GetNested4 { return _nestedItemStorage }
init() {
_storage = 0
_nestedItemStorage = GetNested4()
}
}
struct GetNested4 {
var _storage: Int
var _nestedItemStorage: GetNested5
var storage: Int { return _storage }
var nestedItem: GetNested5 { return _nestedItemStorage }
init() {
_storage = 0
_nestedItemStorage = GetNested5()
}
}
struct GetNested5 {
var _storage: Int
var storage: Int { return _storage }
init() {
_storage = expectedIntForNestedItems
}
}
// Used for run_KeyPathOptionals().
struct Optional1 {
var _storage: Int
var _nestedItemStorage: Optional2??
init() {
_storage = 0
_nestedItemStorage = Optional2()
}
}
struct Optional2 {
var _storage: Int
var _nestedItemStorage: Optional3??
init() {
_storage = 0
_nestedItemStorage = Optional3()
}
}
struct Optional3 {
var _storage: Int
var _nestedItemStorage: Optional4??
init() {
_storage = 0
_nestedItemStorage = Optional4()
}
}
struct Optional4 {
var _storage: Int
var _nestedItemStorage: Optional5??
init() {
_storage = 0
_nestedItemStorage = Optional5()
}
}
struct Optional5 {
public var _storage: Int
init() {
_storage = expectedIntForNestedItems
}
}
// Used for run_KeyPathFixedSizeArrayAccess() and run_testDirectAccess().
struct FixedSizeArray100<Element>: Sequence, IteratorProtocol {
let count: Int = 100
public init(
element0: Element,
element1: Element,
element2: Element,
element3: Element,
element4: Element,
element5: Element,
element6: Element,
element7: Element,
element8: Element,
element9: Element,
element10: Element,
element11: Element,
element12: Element,
element13: Element,
element14: Element,
element15: Element,
element16: Element,
element17: Element,
element18: Element,
element19: Element,
element20: Element,
element21: Element,
element22: Element,
element23: Element,
element24: Element,
element25: Element,
element26: Element,
element27: Element,
element28: Element,
element29: Element,
element30: Element,
element31: Element,
element32: Element,
element33: Element,
element34: Element,
element35: Element,
element36: Element,
element37: Element,
element38: Element,
element39: Element,
element40: Element,
element41: Element,
element42: Element,
element43: Element,
element44: Element,
element45: Element,
element46: Element,
element47: Element,
element48: Element,
element49: Element,
element50: Element,
element51: Element,
element52: Element,
element53: Element,
element54: Element,
element55: Element,
element56: Element,
element57: Element,
element58: Element,
element59: Element,
element60: Element,
element61: Element,
element62: Element,
element63: Element,
element64: Element,
element65: Element,
element66: Element,
element67: Element,
element68: Element,
element69: Element,
element70: Element,
element71: Element,
element72: Element,
element73: Element,
element74: Element,
element75: Element,
element76: Element,
element77: Element,
element78: Element,
element79: Element,
element80: Element,
element81: Element,
element82: Element,
element83: Element,
element84: Element,
element85: Element,
element86: Element,
element87: Element,
element88: Element,
element89: Element,
element90: Element,
element91: Element,
element92: Element,
element93: Element,
element94: Element,
element95: Element,
element96: Element,
element97: Element,
element98: Element,
element99: Element
) {
self.element0 = element0
self.element1 = element1
self.element2 = element2
self.element3 = element3
self.element4 = element4
self.element5 = element5
self.element6 = element6
self.element7 = element7
self.element8 = element8
self.element9 = element9
self.element10 = element10
self.element11 = element11
self.element12 = element12
self.element13 = element13
self.element14 = element14
self.element15 = element15
self.element16 = element16
self.element17 = element17
self.element18 = element18
self.element19 = element19
self.element20 = element20
self.element21 = element21
self.element22 = element22
self.element23 = element23
self.element24 = element24
self.element25 = element25
self.element26 = element26
self.element27 = element27
self.element28 = element28
self.element29 = element29
self.element30 = element30
self.element31 = element31
self.element32 = element32
self.element33 = element33
self.element34 = element34
self.element35 = element35
self.element36 = element36
self.element37 = element37
self.element38 = element38
self.element39 = element39
self.element40 = element40
self.element41 = element41
self.element42 = element42
self.element43 = element43
self.element44 = element44
self.element45 = element45
self.element46 = element46
self.element47 = element47
self.element48 = element48
self.element49 = element49
self.element50 = element50
self.element51 = element51
self.element52 = element52
self.element53 = element53
self.element54 = element54
self.element55 = element55
self.element56 = element56
self.element57 = element57
self.element58 = element58
self.element59 = element59
self.element60 = element60
self.element61 = element61
self.element62 = element62
self.element63 = element63
self.element64 = element64
self.element65 = element65
self.element66 = element66
self.element67 = element67
self.element68 = element68
self.element69 = element69
self.element70 = element70
self.element71 = element71
self.element72 = element72
self.element73 = element73
self.element74 = element74
self.element75 = element75
self.element76 = element76
self.element77 = element77
self.element78 = element78
self.element79 = element79
self.element80 = element80
self.element81 = element81
self.element82 = element82
self.element83 = element83
self.element84 = element84
self.element85 = element85
self.element86 = element86
self.element87 = element87
self.element88 = element88
self.element89 = element89
self.element90 = element90
self.element91 = element91
self.element92 = element92
self.element93 = element93
self.element94 = element94
self.element95 = element95
self.element96 = element96
self.element97 = element97
self.element98 = element98
self.element99 = element99
}
var element0: Element
var element1: Element
var element2: Element
var element3: Element
var element4: Element
var element5: Element
var element6: Element
var element7: Element
var element8: Element
var element9: Element
var element10: Element
var element11: Element
var element12: Element
var element13: Element
var element14: Element
var element15: Element
var element16: Element
var element17: Element
var element18: Element
var element19: Element
var element20: Element
var element21: Element
var element22: Element
var element23: Element
var element24: Element
var element25: Element
var element26: Element
var element27: Element
var element28: Element
var element29: Element
var element30: Element
var element31: Element
var element32: Element
var element33: Element
var element34: Element
var element35: Element
var element36: Element
var element37: Element
var element38: Element
var element39: Element
var element40: Element
var element41: Element
var element42: Element
var element43: Element
var element44: Element
var element45: Element
var element46: Element
var element47: Element
var element48: Element
var element49: Element
var element50: Element
var element51: Element
var element52: Element
var element53: Element
var element54: Element
var element55: Element
var element56: Element
var element57: Element
var element58: Element
var element59: Element
var element60: Element
var element61: Element
var element62: Element
var element63: Element
var element64: Element
var element65: Element
var element66: Element
var element67: Element
var element68: Element
var element69: Element
var element70: Element
var element71: Element
var element72: Element
var element73: Element
var element74: Element
var element75: Element
var element76: Element
var element77: Element
var element78: Element
var element79: Element
var element80: Element
var element81: Element
var element82: Element
var element83: Element
var element84: Element
var element85: Element
var element86: Element
var element87: Element
var element88: Element
var element89: Element
var element90: Element
var element91: Element
var element92: Element
var element93: Element
var element94: Element
var element95: Element
var element96: Element
var element97: Element
var element98: Element
var element99: Element
@inline(never)
static func getKeypathToElement(index: Int)
-> WritableKeyPath<FixedSizeArray100<Element>, Element>
{
switch index {
case 0:
return \FixedSizeArray100.element0
case 1:
return \FixedSizeArray100.element1
case 2:
return \FixedSizeArray100.element2
case 3:
return \FixedSizeArray100.element3
case 4:
return \FixedSizeArray100.element4
case 5:
return \FixedSizeArray100.element5
case 6:
return \FixedSizeArray100.element6
case 7:
return \FixedSizeArray100.element7
case 8:
return \FixedSizeArray100.element8
case 9:
return \FixedSizeArray100.element9
case 10:
return \FixedSizeArray100.element10
case 11:
return \FixedSizeArray100.element11
case 12:
return \FixedSizeArray100.element12
case 13:
return \FixedSizeArray100.element13
case 14:
return \FixedSizeArray100.element14
case 15:
return \FixedSizeArray100.element15
case 16:
return \FixedSizeArray100.element16
case 17:
return \FixedSizeArray100.element17
case 18:
return \FixedSizeArray100.element18
case 19:
return \FixedSizeArray100.element19
case 20:
return \FixedSizeArray100.element20
case 21:
return \FixedSizeArray100.element21
case 22:
return \FixedSizeArray100.element22
case 23:
return \FixedSizeArray100.element23
case 24:
return \FixedSizeArray100.element24
case 25:
return \FixedSizeArray100.element25
case 26:
return \FixedSizeArray100.element26
case 27:
return \FixedSizeArray100.element27
case 28:
return \FixedSizeArray100.element28
case 29:
return \FixedSizeArray100.element29
case 30:
return \FixedSizeArray100.element30
case 31:
return \FixedSizeArray100.element31
case 32:
return \FixedSizeArray100.element32
case 33:
return \FixedSizeArray100.element33
case 34:
return \FixedSizeArray100.element34
case 35:
return \FixedSizeArray100.element35
case 36:
return \FixedSizeArray100.element36
case 37:
return \FixedSizeArray100.element37
case 38:
return \FixedSizeArray100.element38
case 39:
return \FixedSizeArray100.element39
case 40:
return \FixedSizeArray100.element40
case 41:
return \FixedSizeArray100.element41
case 42:
return \FixedSizeArray100.element42
case 43:
return \FixedSizeArray100.element43
case 44:
return \FixedSizeArray100.element44
case 45:
return \FixedSizeArray100.element45
case 46:
return \FixedSizeArray100.element46
case 47:
return \FixedSizeArray100.element47
case 48:
return \FixedSizeArray100.element48
case 49:
return \FixedSizeArray100.element49
case 50:
return \FixedSizeArray100.element50
case 51:
return \FixedSizeArray100.element51
case 52:
return \FixedSizeArray100.element52
case 53:
return \FixedSizeArray100.element53
case 54:
return \FixedSizeArray100.element54
case 55:
return \FixedSizeArray100.element55
case 56:
return \FixedSizeArray100.element56
case 57:
return \FixedSizeArray100.element57
case 58:
return \FixedSizeArray100.element58
case 59:
return \FixedSizeArray100.element59
case 60:
return \FixedSizeArray100.element60
case 61:
return \FixedSizeArray100.element61
case 62:
return \FixedSizeArray100.element62
case 63:
return \FixedSizeArray100.element63
case 64:
return \FixedSizeArray100.element64
case 65:
return \FixedSizeArray100.element65
case 66:
return \FixedSizeArray100.element66
case 67:
return \FixedSizeArray100.element67
case 68:
return \FixedSizeArray100.element68
case 69:
return \FixedSizeArray100.element69
case 70:
return \FixedSizeArray100.element70
case 71:
return \FixedSizeArray100.element71
case 72:
return \FixedSizeArray100.element72
case 73:
return \FixedSizeArray100.element73
case 74:
return \FixedSizeArray100.element74
case 75:
return \FixedSizeArray100.element75
case 76:
return \FixedSizeArray100.element76
case 77:
return \FixedSizeArray100.element77
case 78:
return \FixedSizeArray100.element78
case 79:
return \FixedSizeArray100.element79
case 80:
return \FixedSizeArray100.element80
case 81:
return \FixedSizeArray100.element81
case 82:
return \FixedSizeArray100.element82
case 83:
return \FixedSizeArray100.element83
case 84:
return \FixedSizeArray100.element84
case 85:
return \FixedSizeArray100.element85
case 86:
return \FixedSizeArray100.element86
case 87:
return \FixedSizeArray100.element87
case 88:
return \FixedSizeArray100.element88
case 89:
return \FixedSizeArray100.element89
case 90:
return \FixedSizeArray100.element90
case 91:
return \FixedSizeArray100.element91
case 92:
return \FixedSizeArray100.element92
case 93:
return \FixedSizeArray100.element93
case 94:
return \FixedSizeArray100.element94
case 95:
return \FixedSizeArray100.element95
case 96:
return \FixedSizeArray100.element96
case 97:
return \FixedSizeArray100.element97
case 98:
return \FixedSizeArray100.element98
case 99:
return \FixedSizeArray100.element99
default:
fatalError()
}
}
// Conformance to Iterator.
mutating func next() -> Element? {
var iter_count = 0
if iter_count == count {
return nil
} else {
defer { iter_count += 1 }
return self[keyPath: FixedSizeArray100.getKeypathToElement(index: iter_count)]
}
}
}
// Used for run_testKeyPathSmallStruct().
struct FixedSizeArray10<Element>: Sequence, IteratorProtocol {
let count: Int = 10
public init(
element0: Element,
element1: Element,
element2: Element,
element3: Element,
element4: Element,
element5: Element,
element6: Element,
element7: Element,
element8: Element,
element9: Element
) {
self.element0 = element0
self.element1 = element1
self.element2 = element2
self.element3 = element3
self.element4 = element4
self.element5 = element5
self.element6 = element6
self.element7 = element7
self.element8 = element8
self.element9 = element9
}
var element0: Element
var element1: Element
var element2: Element
var element3: Element
var element4: Element
var element5: Element
var element6: Element
var element7: Element
var element8: Element
var element9: Element
@inline(never)
static func getKeypathToElement(index: Int)
-> WritableKeyPath<FixedSizeArray10<Element>, Element>
{
switch index {
case 0:
return \FixedSizeArray10.element0
case 1:
return \FixedSizeArray10.element1
case 2:
return \FixedSizeArray10.element2
case 3:
return \FixedSizeArray10.element3
case 4:
return \FixedSizeArray10.element4
case 5:
return \FixedSizeArray10.element5
case 6:
return \FixedSizeArray10.element6
case 7:
return \FixedSizeArray10.element7
case 8:
return \FixedSizeArray10.element8
case 9:
return \FixedSizeArray10.element9
default:
fatalError()
}
}
// Conformance to Iterator.
mutating func next() -> Element? {
var iter_count = 0
if iter_count == count {
return nil
} else {
defer { iter_count += 1 }
return self[keyPath: FixedSizeArray10.getKeypathToElement(index: iter_count)]
}
}
}
func initializeFixedSizeArray10() -> FixedSizeArray10<ElementType> {
return FixedSizeArray10<ElementType>(
element0: 0,
element1: 1,
element2: 2,
element3: 3,
element4: 4,
element5: 5,
element6: 6,
element7: 7,
element8: 8,
element9: 9
)
}
func initializeFixedSizeArray100() -> FixedSizeArray100<ElementType> {
return FixedSizeArray100<ElementType>(
element0: 0,
element1: 1,
element2: 2,
element3: 3,
element4: 4,
element5: 5,
element6: 6,
element7: 7,
element8: 8,
element9: 9,
element10: 10,
element11: 11,
element12: 12,
element13: 13,
element14: 14,
element15: 15,
element16: 16,
element17: 17,
element18: 18,
element19: 19,
element20: 20,
element21: 21,
element22: 22,
element23: 23,
element24: 24,
element25: 25,
element26: 26,
element27: 27,
element28: 28,
element29: 29,
element30: 30,
element31: 31,
element32: 32,
element33: 33,
element34: 34,
element35: 35,
element36: 36,
element37: 37,
element38: 38,
element39: 39,
element40: 40,
element41: 41,
element42: 42,
element43: 43,
element44: 44,
element45: 45,
element46: 46,
element47: 47,
element48: 48,
element49: 49,
element50: 50,
element51: 51,
element52: 52,
element53: 53,
element54: 54,
element55: 55,
element56: 56,
element57: 57,
element58: 58,
element59: 59,
element60: 60,
element61: 61,
element62: 62,
element63: 63,
element64: 64,
element65: 65,
element66: 66,
element67: 67,
element68: 68,
element69: 69,
element70: 70,
element71: 71,
element72: 72,
element73: 73,
element74: 74,
element75: 75,
element76: 76,
element77: 77,
element78: 78,
element79: 79,
element80: 80,
element81: 81,
element82: 82,
element83: 83,
element84: 84,
element85: 85,
element86: 86,
element87: 87,
element88: 88,
element89: 89,
element90: 90,
element91: 91,
element92: 92,
element93: 93,
element94: 94,
element95: 95,
element96: 96,
element97: 97,
element98: 98,
element99: 99
)
}
// This measures the performance of keypath reads though nested structs.
@inline(never)
public func run_KeyPathNestedStructs(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let singleHopKeyPath0: WritableKeyPath<A, B> = \A.b
let singleHopKeyPath1: WritableKeyPath<B, C> = \B.c
let singleHopKeyPath2: WritableKeyPath<C, D> = \C.d
let singleHopKeyPath3: WritableKeyPath<D, E> = \D.e
let singleHopKeyPath4: WritableKeyPath<E, Int> = \E.e
let appendedKeyPath = identity(singleHopKeyPath0.appending(path: singleHopKeyPath1)
.appending(path: singleHopKeyPath2).appending(path: singleHopKeyPath3)
.appending(path: singleHopKeyPath4))
let elementCount = FixedSizeArrayHolder.shared.mainArrayForNestedStructs.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.mainArrayForNestedStructs[index]
sum += element[keyPath: appendedKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// This measures the performance of keypath reads where a block of
// trivially-typed memory is preceded by something else (optionals, reference
// types, etc.)
@inline(never)
public func run_KeyPathClassStructs(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 500
let singleHopKeyPath0: WritableKeyPath<D1, D2> = \D1.b
let singleHopKeyPath1: WritableKeyPath<D2, D3> = \D2.c
let singleHopKeyPath2: WritableKeyPath<D3, D4> = \D3.d
let singleHopKeyPath3: WritableKeyPath<D4, D5> = \D4.e
let singleHopKeyPath4: WritableKeyPath<D5, Int> = \D5.e
let appendedKeyPath = identity(singleHopKeyPath0.appending(path: singleHopKeyPath1)
.appending(path: singleHopKeyPath2).appending(path: singleHopKeyPath3)
.appending(path: singleHopKeyPath4))
let elementCount = FixedSizeArrayHolder.shared.mainArrayForClassStructs.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.mainArrayForClassStructs[index]
sum += element[keyPath: appendedKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// This is meant as a baseline, from a timing perspective,
// for run_testKeyPathReadPerformance() and run_testKeyPathWritePerformance().
// It's currently set to ".skip", but is useful for comparing the performance between keypath operations and direct dot-notation.
@inline(never)
public func run_testDirectAccess(n: Int) {
var fixedSizeArray100 = FixedSizeArrayHolder.shared.fixedSizeArray100
let iterationMultipier = 125_000
for t in 1 ... iterationMultipier * n {
fixedSizeArray100.element50 += fixedSizeArray100.element1 + ElementType(t)
fixedSizeArray100.element46 += fixedSizeArray100.element63 - fixedSizeArray100.element99
fixedSizeArray100.element43 += fixedSizeArray100.element39 * fixedSizeArray100.element27
fixedSizeArray100.element81 += fixedSizeArray100.element49 / fixedSizeArray100.element9
fixedSizeArray100.element31 += fixedSizeArray100.element90 + fixedSizeArray100.element84
fixedSizeArray100.element35 += fixedSizeArray100.element6 - fixedSizeArray100.element22
fixedSizeArray100.element14 += fixedSizeArray100.element67 * fixedSizeArray100.element82
fixedSizeArray100.element51 += fixedSizeArray100.element40 / fixedSizeArray100.element86
fixedSizeArray100.element24 += fixedSizeArray100.element23 + fixedSizeArray100.element49
fixedSizeArray100.element90 += fixedSizeArray100.element95 - fixedSizeArray100.element18
fixedSizeArray100.element80 += fixedSizeArray100.element45 * fixedSizeArray100.element97
fixedSizeArray100.element47 += fixedSizeArray100.element65 / fixedSizeArray100.element69
fixedSizeArray100.element92 += fixedSizeArray100.element80 + fixedSizeArray100.element76
fixedSizeArray100.element78 += fixedSizeArray100.element32 - fixedSizeArray100.element32
fixedSizeArray100.element79 += fixedSizeArray100.element59 * fixedSizeArray100.element52
fixedSizeArray100.element46 += fixedSizeArray100.element60 / fixedSizeArray100.element24
fixedSizeArray100.element64 += fixedSizeArray100.element41 + fixedSizeArray100.element87
fixedSizeArray100.element65 += fixedSizeArray100.element72 - fixedSizeArray100.element67
fixedSizeArray100.element19 += fixedSizeArray100.element81 * fixedSizeArray100.element65
fixedSizeArray100.element66 += fixedSizeArray100.element55 / fixedSizeArray100.element43
fixedSizeArray100.element10 += fixedSizeArray100.element52 + fixedSizeArray100.element12
fixedSizeArray100.element81 += fixedSizeArray100.element50 - fixedSizeArray100.element21
fixedSizeArray100.element16 += fixedSizeArray100.element80 * fixedSizeArray100.element77
fixedSizeArray100.element6 += fixedSizeArray100.element62 / fixedSizeArray100.element40
fixedSizeArray100.element26 += fixedSizeArray100.element65 + fixedSizeArray100.element65
fixedSizeArray100.element83 += fixedSizeArray100.element78 - fixedSizeArray100.element50
}
let sum = computeSumOfFixedSizeArray100(fixedSizeArray100: &fixedSizeArray100)
check(sum > ElementType(0))
}
// This measures read performance of keypaths.
@inline(never)
public func run_testKeyPathReadPerformance(n: Int) {
var fixedSizeArray100 = FixedSizeArrayHolder.shared.fixedSizeArray100
let iterationMultipier = 25
let kp99 = FixedSizeArrayHolder.shared.kp99
let kp27 = FixedSizeArrayHolder.shared.kp27
let kp09 = FixedSizeArrayHolder.shared.kp09
let kp84 = FixedSizeArrayHolder.shared.kp84
let kp22 = FixedSizeArrayHolder.shared.kp22
let kp82 = FixedSizeArrayHolder.shared.kp82
let kp86 = FixedSizeArrayHolder.shared.kp86
let kp49 = FixedSizeArrayHolder.shared.kp49
let kp18 = FixedSizeArrayHolder.shared.kp18
let kp97 = FixedSizeArrayHolder.shared.kp97
let kp69 = FixedSizeArrayHolder.shared.kp69
let kp76 = FixedSizeArrayHolder.shared.kp76
let kp32 = FixedSizeArrayHolder.shared.kp32
let kp52 = FixedSizeArrayHolder.shared.kp52
let kp24 = FixedSizeArrayHolder.shared.kp24
let kp87 = FixedSizeArrayHolder.shared.kp87
let kp67 = FixedSizeArrayHolder.shared.kp67
let kp65 = FixedSizeArrayHolder.shared.kp65
let kp43 = FixedSizeArrayHolder.shared.kp43
let kp12 = FixedSizeArrayHolder.shared.kp12
let kp21 = FixedSizeArrayHolder.shared.kp21
let kp77 = FixedSizeArrayHolder.shared.kp77
let kp40 = FixedSizeArrayHolder.shared.kp40
let kp60 = FixedSizeArrayHolder.shared.kp60
let kp50 = FixedSizeArrayHolder.shared.kp50
for t in 1 ... iterationMultipier * n {
fixedSizeArray100.element50 += fixedSizeArray100.element1 + ElementType(t)
fixedSizeArray100.element46 += fixedSizeArray100
.element63 - fixedSizeArray100[keyPath: kp99]
fixedSizeArray100.element43 += fixedSizeArray100
.element39 * fixedSizeArray100[keyPath: kp27]
fixedSizeArray100.element81 += fixedSizeArray100
.element49 / fixedSizeArray100[keyPath: kp09]
fixedSizeArray100.element31 += fixedSizeArray100
.element90 + fixedSizeArray100[keyPath: kp84]
fixedSizeArray100.element35 += fixedSizeArray100
.element6 - fixedSizeArray100[keyPath: kp22]
fixedSizeArray100.element14 += fixedSizeArray100
.element67 * fixedSizeArray100[keyPath: kp82]
fixedSizeArray100.element51 += fixedSizeArray100
.element40 / fixedSizeArray100[keyPath: kp86]
fixedSizeArray100.element24 += fixedSizeArray100
.element23 + fixedSizeArray100[keyPath: kp49]
fixedSizeArray100.element90 += fixedSizeArray100
.element95 - fixedSizeArray100[keyPath: kp18]
fixedSizeArray100.element80 += fixedSizeArray100
.element45 * fixedSizeArray100[keyPath: kp97]
fixedSizeArray100.element47 += fixedSizeArray100
.element65 / fixedSizeArray100[keyPath: kp69]
fixedSizeArray100.element92 += fixedSizeArray100
.element80 + fixedSizeArray100[keyPath: kp76]
fixedSizeArray100.element78 += fixedSizeArray100
.element32 - fixedSizeArray100[keyPath: kp32]
fixedSizeArray100.element79 += fixedSizeArray100
.element59 * fixedSizeArray100[keyPath: kp52]
fixedSizeArray100.element46 += fixedSizeArray100
.element60 / fixedSizeArray100[keyPath: kp24]
fixedSizeArray100.element64 += fixedSizeArray100
.element41 + fixedSizeArray100[keyPath: kp87]
fixedSizeArray100.element65 += fixedSizeArray100
.element72 - fixedSizeArray100[keyPath: kp67]
fixedSizeArray100.element19 += fixedSizeArray100
.element81 * fixedSizeArray100[keyPath: kp65]
fixedSizeArray100.element66 += fixedSizeArray100
.element55 / fixedSizeArray100[keyPath: kp43]
fixedSizeArray100.element10 += fixedSizeArray100
.element52 + fixedSizeArray100[keyPath: kp12]
fixedSizeArray100.element81 += fixedSizeArray100
.element50 - fixedSizeArray100[keyPath: kp21]
fixedSizeArray100.element16 += fixedSizeArray100
.element80 * fixedSizeArray100[keyPath: kp77]
fixedSizeArray100.element6 += fixedSizeArray100
.element62 / fixedSizeArray100[keyPath: kp40]
fixedSizeArray100.element26 += fixedSizeArray100
.element65 + fixedSizeArray100[keyPath: kp60]
fixedSizeArray100.element83 += fixedSizeArray100
.element78 - fixedSizeArray100[keyPath: kp50]
}
let sum = computeSumOfFixedSizeArray100(fixedSizeArray100: &fixedSizeArray100)
check(sum > ElementType(0))
}
// This measures write performance of keypaths.
@inline(never)
public func run_testKeyPathWritePerformance(n: Int) {
var fixedSizeArray100 = FixedSizeArrayHolder.shared.fixedSizeArray100
let iterationMultipier = 150
let kp46 = FixedSizeArrayHolder.shared.kp46
let kp43 = FixedSizeArrayHolder.shared.kp43
let kp81 = FixedSizeArrayHolder.shared.kp81
let kp31 = FixedSizeArrayHolder.shared.kp31
let kp35 = FixedSizeArrayHolder.shared.kp35
let kp14 = FixedSizeArrayHolder.shared.kp14
let kp51 = FixedSizeArrayHolder.shared.kp51
let kp24 = FixedSizeArrayHolder.shared.kp24
let kp90 = FixedSizeArrayHolder.shared.kp90
let kp80 = FixedSizeArrayHolder.shared.kp80
let kp47 = FixedSizeArrayHolder.shared.kp47
let kp92 = FixedSizeArrayHolder.shared.kp92
let kp78 = FixedSizeArrayHolder.shared.kp78
let kp79 = FixedSizeArrayHolder.shared.kp79
let kp48 = FixedSizeArrayHolder.shared.kp48
let kp64 = FixedSizeArrayHolder.shared.kp64
let kp65 = FixedSizeArrayHolder.shared.kp65
let kp19 = FixedSizeArrayHolder.shared.kp19
let kp66 = FixedSizeArrayHolder.shared.kp66
let kp10 = FixedSizeArrayHolder.shared.kp10
let kp89 = FixedSizeArrayHolder.shared.kp89
let kp16 = FixedSizeArrayHolder.shared.kp16
let kp06 = FixedSizeArrayHolder.shared.kp06
let kp26 = FixedSizeArrayHolder.shared.kp26
let kp83 = FixedSizeArrayHolder.shared.kp83
for t in 1 ... iterationMultipier * n {
fixedSizeArray100.element50 += fixedSizeArray100.element1 + ElementType(t)
fixedSizeArray100[keyPath: kp46] += fixedSizeArray100.element63 - fixedSizeArray100
.element99
fixedSizeArray100[keyPath: kp43] += fixedSizeArray100.element39 * fixedSizeArray100
.element27
fixedSizeArray100[keyPath: kp81] += fixedSizeArray100.element49 / fixedSizeArray100
.element9
fixedSizeArray100[keyPath: kp31] += fixedSizeArray100.element90 + fixedSizeArray100
.element84
fixedSizeArray100[keyPath: kp35] += fixedSizeArray100.element6 - fixedSizeArray100
.element22
fixedSizeArray100[keyPath: kp14] += fixedSizeArray100.element67 * fixedSizeArray100
.element82
fixedSizeArray100[keyPath: kp51] += fixedSizeArray100.element40 / fixedSizeArray100
.element86
fixedSizeArray100[keyPath: kp24] += fixedSizeArray100.element23 + fixedSizeArray100
.element49
fixedSizeArray100[keyPath: kp90] += fixedSizeArray100.element95 - fixedSizeArray100
.element18
fixedSizeArray100[keyPath: kp80] += fixedSizeArray100.element45 * fixedSizeArray100
.element97
fixedSizeArray100[keyPath: kp47] += fixedSizeArray100.element65 / fixedSizeArray100
.element69
fixedSizeArray100[keyPath: kp92] += fixedSizeArray100.element80 + fixedSizeArray100
.element76
fixedSizeArray100[keyPath: kp78] += fixedSizeArray100.element32 - fixedSizeArray100
.element32
fixedSizeArray100[keyPath: kp79] += fixedSizeArray100.element59 * fixedSizeArray100
.element52
fixedSizeArray100[keyPath: kp48] += fixedSizeArray100.element60 / fixedSizeArray100
.element24
fixedSizeArray100[keyPath: kp64] += fixedSizeArray100.element41 + fixedSizeArray100
.element87
fixedSizeArray100[keyPath: kp65] += fixedSizeArray100.element72 - fixedSizeArray100
.element67
fixedSizeArray100[keyPath: kp19] += fixedSizeArray100.element81 * fixedSizeArray100
.element65
fixedSizeArray100[keyPath: kp66] += fixedSizeArray100.element55 / fixedSizeArray100
.element43
fixedSizeArray100[keyPath: kp10] += fixedSizeArray100.element52 + fixedSizeArray100
.element12
fixedSizeArray100[keyPath: kp89] += fixedSizeArray100.element50 - fixedSizeArray100
.element21
fixedSizeArray100[keyPath: kp16] += fixedSizeArray100.element80 * fixedSizeArray100
.element77
fixedSizeArray100[keyPath: kp06] += fixedSizeArray100.element62 / fixedSizeArray100
.element40
fixedSizeArray100[keyPath: kp26] += fixedSizeArray100.element65 + fixedSizeArray100
.element65
fixedSizeArray100[keyPath: kp83] += fixedSizeArray100.element78 - fixedSizeArray100
.element50
}
let sum = computeSumOfFixedSizeArray100(fixedSizeArray100: &fixedSizeArray100)
check(sum > ElementType(0))
}
// Intended to showcase the difference in performance between 10 and 100-element structs.
@inline(never)
public func run_testKeyPathSmallStruct(n: Int) {
var fixedSizeArray10 = FixedSizeArrayHolder.shared.fixedSizeArray10
let iterationMultipier = 25
let kp0 = FixedSizeArrayHolder.shared.kp0
let kp1 = FixedSizeArrayHolder.shared.kp1
let kp2 = FixedSizeArrayHolder.shared.kp2
let kp3 = FixedSizeArrayHolder.shared.kp3
let kp4 = FixedSizeArrayHolder.shared.kp4
let kp5 = FixedSizeArrayHolder.shared.kp5
let kp6 = FixedSizeArrayHolder.shared.kp6
let kp7 = FixedSizeArrayHolder.shared.kp7
let kp8 = FixedSizeArrayHolder.shared.kp8
let kp9 = FixedSizeArrayHolder.shared.kp9
for t in 1 ... iterationMultipier * n {
fixedSizeArray10.element0 += fixedSizeArray10.element1 + ElementType(t)
fixedSizeArray10.element6 += fixedSizeArray10
.element3 - fixedSizeArray10[keyPath: kp9]
fixedSizeArray10.element3 += fixedSizeArray10
.element9 * fixedSizeArray10[keyPath: kp7]
fixedSizeArray10.element1 += fixedSizeArray10
.element9 / fixedSizeArray10[keyPath: kp9]
fixedSizeArray10.element1 += fixedSizeArray10
.element0 + fixedSizeArray10[keyPath: kp4]
fixedSizeArray10.element5 += fixedSizeArray10
.element6 - fixedSizeArray10[keyPath: kp2]
fixedSizeArray10.element4 += fixedSizeArray10
.element7 * fixedSizeArray10[keyPath: kp2]
fixedSizeArray10.element1 += fixedSizeArray10
.element0 / fixedSizeArray10[keyPath: kp6]
fixedSizeArray10.element4 += fixedSizeArray10
.element3 + fixedSizeArray10[keyPath: kp9]
fixedSizeArray10.element0 += fixedSizeArray10
.element5 - fixedSizeArray10[keyPath: kp8]
fixedSizeArray10.element0 += fixedSizeArray10
.element5 * fixedSizeArray10[keyPath: kp7]
fixedSizeArray10.element7 += fixedSizeArray10
.element5 / fixedSizeArray10[keyPath: kp9]
fixedSizeArray10.element2 += fixedSizeArray10
.element0 + fixedSizeArray10[keyPath: kp6]
fixedSizeArray10.element8 += fixedSizeArray10
.element2 - fixedSizeArray10[keyPath: kp2]
fixedSizeArray10.element9 += fixedSizeArray10
.element9 * fixedSizeArray10[keyPath: kp2]
fixedSizeArray10.element6 += fixedSizeArray10
.element0 / fixedSizeArray10[keyPath: kp4]
fixedSizeArray10.element4 += fixedSizeArray10
.element1 + fixedSizeArray10[keyPath: kp7]
fixedSizeArray10.element5 += fixedSizeArray10
.element2 - fixedSizeArray10[keyPath: kp7]
fixedSizeArray10.element9 += fixedSizeArray10
.element1 * fixedSizeArray10[keyPath: kp5]
fixedSizeArray10.element6 += fixedSizeArray10
.element5 / fixedSizeArray10[keyPath: kp3]
fixedSizeArray10.element0 += fixedSizeArray10
.element2 + fixedSizeArray10[keyPath: kp2]
fixedSizeArray10.element1 += fixedSizeArray10
.element0 - fixedSizeArray10[keyPath: kp1]
fixedSizeArray10.element6 += fixedSizeArray10
.element0 * fixedSizeArray10[keyPath: kp7]
fixedSizeArray10.element6 += fixedSizeArray10
.element2 / fixedSizeArray10[keyPath: kp0]
fixedSizeArray10.element6 += fixedSizeArray10
.element5 + fixedSizeArray10[keyPath: kp0]
fixedSizeArray10.element3 += fixedSizeArray10
.element8 - fixedSizeArray10[keyPath: kp0]
}
let sum = computeSumOfFixedSizeArray10(fixedSizeArray10: &fixedSizeArray10)
blackHole(sum)
}
// Benchmarks traversal through `KeyPathComponents` of type `.mutatingGetset`.
public func run_KeyPathMutatingGetset(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let destinationKeyPath = FixedSizeArrayHolder.shared.keypathForMutatingGetSet
let elementCount = FixedSizeArrayHolder.shared.arrayForMutatingGetset.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.arrayForMutatingGetset[index]
sum += element[keyPath: destinationKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// Benchmarks traversal through `KeyPathComponents` of type `.get`.
public func run_KeyPathGet(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let destinationKeyPath = FixedSizeArrayHolder.shared.keypathForGet
let elementCount = FixedSizeArrayHolder.shared.arrayForGet.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.arrayForGet[index]
sum += element[keyPath: destinationKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// Benchmarks traversal through `KeyPathComponents` of type `.optionalChain,` `.optionalForce,` and `.optionalWrap`.
// Note: The decision that `optionalChains` and `optionalForces` are merged into a single benchmark is arbitrary.
// TODO: Write a benchmark with more than one `.optionalWrap`.
public func run_KeyPathOptionals(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let destinationKeyPath = FixedSizeArrayHolder.shared.keypathForOptional
let elementCount = FixedSizeArrayHolder.shared.arrayForOptionals.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.arrayForOptionals[index]
sum += element[keyPath: destinationKeyPath]!
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// Benchmarks traversal through `KeyPathComponents` of type `.class`.
public func run_KeyPathNestedClasses(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let destinationKeyPath = FixedSizeArrayHolder.shared.keypathForNestedClasses
let elementCount = FixedSizeArrayHolder.shared.arrayForNestedClasses.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.arrayForNestedClasses[index]
sum += element[keyPath: destinationKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
// Benchmarks traversal through `KeyPathComponents` of type `.nonmutatingGetset`.
// Note: There may be other, simpler ways of getting consecutive `.nonmutatingGetset`. components.
public func run_KeyPathNonmutatingGetset(n: Int) {
var sum = 0
var index = 0
let iterationMultipier = 200
let destinationKeyPath = FixedSizeArrayHolder.shared.keypathForNonMutatingGetset
let elementCount = FixedSizeArrayHolder.shared.arrayForNonMutatingGetset.count
for _ in 1 ... iterationMultipier * n {
let element = FixedSizeArrayHolder.shared.arrayForNonMutatingGetset[index]
sum += element[keyPath: destinationKeyPath]
index = (index + 1) % elementCount
}
check(sum == iterationMultipier * n * expectedIntForNestedItems)
}
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