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128 lines
3.3 KiB
Swift
128 lines
3.3 KiB
Swift
//===--- BufferFind.swift -------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2021 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import TestsUtils
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public var benchmarks: [BenchmarkInfo] = [
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// size 1000, alignment 0
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BenchmarkInfo(
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name: "RawBuffer.1000.findFirst",
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runFunction: run_BufferFindFirst,
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tags: [.validation, .api],
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setUpFunction: buffer1000Setup,
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tearDownFunction: bufferTeardown
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),
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BenchmarkInfo(
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name: "RawBuffer.1000.findLast",
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runFunction: run_BufferFindLast,
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tags: [.validation, .api],
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setUpFunction: buffer1000Setup,
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tearDownFunction: bufferTeardown
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),
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// size 128, alignment 0
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BenchmarkInfo(
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name: "RawBuffer.128.findFirst",
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runFunction: run_BufferFindFirst,
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tags: [.validation, .api, .skip],
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setUpFunction: buffer128Setup,
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tearDownFunction: bufferTeardown
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),
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BenchmarkInfo(
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name: "RawBuffer.128.findLast",
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runFunction: run_BufferFindLast,
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tags: [.validation, .api],
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setUpFunction: buffer128Setup,
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tearDownFunction: bufferTeardown
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),
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// size 39, alignment 0
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BenchmarkInfo(
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name: "RawBuffer.39.findFirst",
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runFunction: run_BufferFindFirst,
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tags: [.validation, .api],
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setUpFunction: buffer39Setup,
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tearDownFunction: bufferTeardown
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),
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BenchmarkInfo(
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name: "RawBuffer.39.findLast",
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runFunction: run_BufferFindLast,
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tags: [.validation, .api],
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setUpFunction: buffer39Setup,
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tearDownFunction: bufferTeardown
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),
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// size 7, alignment 0
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BenchmarkInfo(
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name: "RawBuffer.7.findFirst",
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runFunction: run_BufferFindFirst,
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tags: [.validation, .api],
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setUpFunction: buffer7Setup,
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tearDownFunction: bufferTeardown
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),
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BenchmarkInfo(
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name: "RawBuffer.7.findLast",
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runFunction: run_BufferFindLast,
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tags: [.validation, .api],
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setUpFunction: buffer7Setup,
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tearDownFunction: bufferTeardown
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)
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]
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var buffer: UnsafeMutableRawBufferPointer = .init(start: nil, count: 0)
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func buffer1000Setup() {
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bufferSetup(size: 1000, alignment: 0)
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}
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func buffer128Setup() {
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bufferSetup(size: 128, alignment: 0)
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}
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func buffer39Setup() {
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bufferSetup(size: 39, alignment: 0)
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}
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func buffer7Setup() {
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bufferSetup(size: 7, alignment: 0)
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}
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func bufferTeardown() {
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buffer.deallocate()
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buffer = .init(start: nil, count: 0)
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}
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func bufferSetup(size: Int, alignment: Int) {
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buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: size, alignment: alignment)
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buffer.initializeMemory(as: UInt8.self, repeating: UInt8.min)
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buffer[size / 2] = UInt8.max
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}
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@inline(never)
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public func run_BufferFindFirst(n: Int) {
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var offset = 0
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for _ in 0 ..< n * 10_000 {
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if let index = buffer.firstIndex(of: UInt8.max) {
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offset += index
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}
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}
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blackHole(offset)
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}
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@inline(never)
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public func run_BufferFindLast(n: Int) {
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var offset = 0
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for _ in 0 ..< n * 10_000 {
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if let index = buffer.lastIndex(of: UInt8.max) {
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offset += index
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}
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}
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blackHole(offset)
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}
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