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//===--- IndexBenchmark.cpp - Clangd index benchmarks -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../index/SymbolYAML.h"
#include "../index/dex/Dex.h"
#include "benchmark/benchmark.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Regex.h"
#include <fstream>
#include <streambuf>
#include <string>
const char *IndexFilename;
const char *LogFilename;
namespace clang {
namespace clangd {
namespace {
std::unique_ptr<clang::clangd::SymbolIndex> buildMem() {
return clang::clangd::loadIndex(IndexFilename, {}, false);
}
std::unique_ptr<clang::clangd::SymbolIndex> buildDex() {
return clang::clangd::loadIndex(IndexFilename, {}, true);
}
// This function processes user-provided Log file with fuzzy find requests in
// the following format:
//
// fuzzyFind("UnqualifiedName", scopes=["clang::", "clang::clangd::"])
//
// It constructs vector of FuzzyFindRequests which is later used for the
// benchmarks.
std::vector<clang::clangd::FuzzyFindRequest> extractQueriesFromLogs() {
llvm::Regex RequestMatcher("fuzzyFind\\(\"([a-zA-Z]*)\", scopes=\\[(.*)\\]");
llvm::SmallVector<llvm::StringRef, 200> Matches;
std::ifstream InputStream(LogFilename);
std::string Log((std::istreambuf_iterator<char>(InputStream)),
std::istreambuf_iterator<char>());
llvm::StringRef Temporary(Log);
llvm::SmallVector<llvm::StringRef, 200> Strings;
Temporary.split(Strings, '\n');
clang::clangd::FuzzyFindRequest R;
R.MaxCandidateCount = 100;
llvm::SmallVector<llvm::StringRef, 200> CommaSeparatedValues;
std::vector<clang::clangd::FuzzyFindRequest> RealRequests;
for (auto Line : Strings) {
if (RequestMatcher.match(Line, &Matches)) {
R.Query = Matches[1];
CommaSeparatedValues.clear();
Line.split(CommaSeparatedValues, ',');
R.Scopes.clear();
for (auto C : CommaSeparatedValues) {
R.Scopes.push_back(C);
}
RealRequests.push_back(R);
}
}
return RealRequests;
}
static void MemQueries(benchmark::State &State) {
const auto Mem = buildMem();
const auto Requests = extractQueriesFromLogs();
for (auto _ : State)
for (const auto &Request : Requests)
Mem->fuzzyFind(Request, [](const Symbol &S) {});
}
BENCHMARK(MemQueries);
static void DexQueries(benchmark::State &State) {
const auto Dex = buildDex();
const auto Requests = extractQueriesFromLogs();
for (auto _ : State)
for (const auto &Request : Requests)
Dex->fuzzyFind(Request, [](const Symbol &S) {});
}
BENCHMARK(DexQueries);
} // namespace
} // namespace clangd
} // namespace clang
// FIXME(kbobyrev): Add index building time benchmarks.
// FIXME(kbobyrev): Add memory consumption "benchmarks" by manually measuring
// in-memory index size and reporting it as time.
// FIXME(kbobyrev): Create a logger wrapper to suppress debugging info printer.
int main(int argc, char *argv[]) {
if (argc < 3) {
llvm::errs() << "Usage: " << argv[0]
<< " global-symbol-index.yaml fuzzy-find-requests.log "
"BENCHMARK_OPTIONS...\n";
return -1;
}
IndexFilename = argv[1];
LogFilename = argv[2];
// Trim first two arguments of the benchmark invocation.
argv += 3;
argc -= 3;
::benchmark::Initialize(&argc, argv);
::benchmark::RunSpecifiedBenchmarks();
}
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