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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
//===--- IndexBenchmark.cpp - Clangd index benchmarks -----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "../index/Serialization.h"
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#include "../index/dex/Dex.h"
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#include "benchmark/benchmark.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Regex.h"
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#include <fstream>
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#include <streambuf>
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#include <string>
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const char *IndexFilename;
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const char *RequestsFilename;
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namespace clang {
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namespace clangd {
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namespace {
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std::unique_ptr<SymbolIndex> buildMem() {
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return loadIndex(IndexFilename, /*UseDex=*/false);
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}
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std::unique_ptr<SymbolIndex> buildDex() {
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return loadIndex(IndexFilename, /*UseDex=*/true);
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}
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// Reads JSON array of serialized FuzzyFindRequest's from user-provided file.
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std::vector<FuzzyFindRequest> extractQueriesFromLogs() {
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std::ifstream InputStream(RequestsFilename);
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std::string Log((std::istreambuf_iterator<char>(InputStream)),
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std::istreambuf_iterator<char>());
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std::vector<FuzzyFindRequest> Requests;
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auto JSONArray = llvm::json::parse(Log);
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// Panic if the provided file couldn't be parsed.
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if (!JSONArray) {
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llvm::errs() << "Error when parsing JSON requests file: "
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<< llvm::toString(JSONArray.takeError());
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exit(1);
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}
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if (!JSONArray->getAsArray()) {
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llvm::errs() << "Error: top-level value is not a JSON array: " << Log
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<< '\n';
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exit(1);
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}
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for (const auto &Item : *JSONArray->getAsArray()) {
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FuzzyFindRequest Request;
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// Panic if the provided file couldn't be parsed.
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if (!fromJSON(Item, Request)) {
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llvm::errs() << "Error when deserializing request: " << Item << '\n';
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exit(1);
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}
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Requests.push_back(Request);
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}
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return Requests;
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}
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static void MemQueries(benchmark::State &State) {
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const auto Mem = buildMem();
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const auto Requests = extractQueriesFromLogs();
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for (auto _ : State)
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for (const auto &Request : Requests)
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Mem->fuzzyFind(Request, [](const Symbol &S) {});
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}
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BENCHMARK(MemQueries);
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static void DexQueries(benchmark::State &State) {
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const auto Dex = buildDex();
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const auto Requests = extractQueriesFromLogs();
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for (auto _ : State)
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for (const auto &Request : Requests)
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Dex->fuzzyFind(Request, [](const Symbol &S) {});
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}
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BENCHMARK(DexQueries);
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} // namespace
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} // namespace clangd
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} // namespace clang
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// FIXME(kbobyrev): Add index building time benchmarks.
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// FIXME(kbobyrev): Add memory consumption "benchmarks" by manually measuring
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// in-memory index size and reporting it as time.
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// FIXME(kbobyrev): Create a logger wrapper to suppress debugging info printer.
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int main(int argc, char *argv[]) {
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if (argc < 3) {
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llvm::errs() << "Usage: " << argv[0]
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<< " global-symbol-index.yaml requests.json "
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"BENCHMARK_OPTIONS...\n";
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return -1;
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}
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IndexFilename = argv[1];
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RequestsFilename = argv[2];
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// Trim first two arguments of the benchmark invocation and pretend no
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// arguments were passed in the first place.
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argv[2] = argv[0];
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argv += 2;
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argc -= 2;
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::benchmark::Initialize(&argc, argv);
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::benchmark::RunSpecifiedBenchmarks();
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}
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