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[sourcekitd] Add a request to get statistics from the service

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... and add a few basic statistics about the number of requests, ASTs
built, etc.  The Statistic type is loosely based on the one from LLVM,
but suitable for using without DEBUG macros and using SourceKit UIdents
to identify the statistic.  The easiest way to add a new statistic is to
add it to SwiftStatistics.def in the SwiftLangSupport.
This commit is contained in:
Ben Langmuir
2017-10-04 14:28:42 -07:00
parent d558168a42
commit 9c7d9235de
14 changed files with 250 additions and 10 deletions
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23
tools/SourceKit/lib/SwiftLang/SwiftASTManager.cpp
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@@ -158,13 +158,15 @@ void InvocationOptions::profile(llvm::FoldingSetNodeID &ID) const {
namespace SourceKit {
struct ASTUnit::Implementation {
const uint64_t Generation;
SwiftStatistics &Stats;
SmallVector<ImmutableTextSnapshotRef, 4> Snapshots;
EditorDiagConsumer CollectDiagConsumer;
CompilerInstance CompInst;
OwnedResolver TypeResolver{ nullptr, nullptr };
WorkQueue Queue{ WorkQueue::Dequeuing::Serial, "sourcekit.swift.ConsumeAST" };
Implementation(uint64_t Generation) : Generation(Generation) {}
Implementation(uint64_t Generation, SwiftStatistics &Statistics)
: Generation(Generation), Stats(Statistics) {}
void consumeAsync(SwiftASTConsumerRef ASTConsumer, ASTUnitRef ASTRef);
};
@@ -185,10 +187,14 @@ namespace SourceKit {
});
}
ASTUnit::ASTUnit(uint64_t Generation) : Impl(*new Implementation(Generation)) {
ASTUnit::ASTUnit(uint64_t Generation, SwiftStatistics &Stats)
: Impl(*new Implementation(Generation, Stats)) {
auto numASTs = ++Stats.numASTsInMem;
Stats.maxASTsInMem.updateMax(numASTs);
}
ASTUnit::~ASTUnit() {
--Impl.Stats.numASTsInMem;
delete &Impl;
}
@@ -307,10 +313,12 @@ struct CacheKeyHashInfo<ASTKey> {
struct SwiftASTManager::Implementation {
explicit Implementation(SwiftLangSupport &LangSupport)
: EditorDocs(LangSupport.getEditorDocuments()),
RuntimeResourcePath(LangSupport.getRuntimeResourcePath()) { }
: EditorDocs(LangSupport.getEditorDocuments()),
Stats(LangSupport.getStatistics()),
RuntimeResourcePath(LangSupport.getRuntimeResourcePath()) {}
SwiftEditorDocumentFileMap &EditorDocs;
SwiftStatistics &Stats;
std::string RuntimeResourcePath;
SourceManager SourceMgr;
Cache<ASTKey, ASTProducerRef> ASTCache{ "sourcekit.swift.ASTCache" };
@@ -488,6 +496,7 @@ void SwiftASTManager::processASTAsync(SwiftInvocationRef InvokRef,
if (ASTUnitRef Unit = Producer->getExistingAST()) {
if (ASTConsumer->canUseASTWithSnapshots(Unit->getSnapshots())) {
++Impl.Stats.numASTsUsedWithSnaphots;
Unit->Impl.consumeAsync(std::move(ASTConsumer), Unit);
return;
}
@@ -616,6 +625,8 @@ ASTUnitRef ASTProducer::getASTUnitImpl(SwiftASTManager::Implementation &MgrImpl,
ASTProducerRef ThisProducer = this;
MgrImpl.ASTCache.set(InvokRef->Impl.Key, ThisProducer);
}
} else {
++MgrImpl.Stats.numASTCacheHits;
}
return AST;
@@ -732,6 +743,8 @@ static std::atomic<uint64_t> ASTUnitGeneration{ 0 };
ASTUnitRef ASTProducer::createASTUnit(SwiftASTManager::Implementation &MgrImpl,
ArrayRef<ImmutableTextSnapshotRef> Snapshots,
std::string &Error) {
++MgrImpl.Stats.numASTBuilds;
Stamps.clear();
DependencyStamps.clear();
@@ -770,7 +783,7 @@ ASTUnitRef ASTProducer::createASTUnit(SwiftASTManager::Implementation &MgrImpl,
TraceInfo.Args.Args = Opts.Args;
}
ASTUnitRef ASTRef = new ASTUnit(++ASTUnitGeneration);
ASTUnitRef ASTRef = new ASTUnit(++ASTUnitGeneration, MgrImpl.Stats);
for (auto &Content : Contents) {
if (Content.Snapshot)
ASTRef->Impl.Snapshots.push_back(Content.Snapshot);