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[libc] Add --sweep-min-size flag for benchmarks (#70302)

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We have --sweep-max-size, it's reasonable to have --sweep-min-size as
well. It can be used when working on the logic for larger sizes, or to
collect a profile for larger sizes only.
This commit is contained in:
Dmitry Vyukov 2023-10-26 11:06:15 +02:00 committed by GitHub
parent cf3ac964dc
commit 605fadf0ca
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1 changed files with 10 additions and 4 deletions
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14
libc/benchmarks/LibcMemoryBenchmarkMain.cpp
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@ -42,9 +42,15 @@ static cl::opt<std::string>
SizeDistributionName("size-distribution-name",
cl::desc("The name of the distribution to use"));
static cl::opt<bool>
SweepMode("sweep-mode",
cl::desc("If set, benchmark all sizes from 0 to sweep-max-size"));
static cl::opt<bool> SweepMode(
"sweep-mode",
cl::desc(
"If set, benchmark all sizes from sweep-min-size to sweep-max-size"));
static cl::opt<uint32_t>
SweepMinSize("sweep-min-size",
cl::desc("The minimum size to use in sweep-mode"),
cl::init(0));
static cl::opt<uint32_t>
SweepMaxSize("sweep-max-size",
@ -185,7 +191,7 @@ struct MemfunctionBenchmarkSweep final : public MemfunctionBenchmarkBase {
BO.InitialIterations = 100;
auto &Measurements = Study.Measurements;
Measurements.reserve(NumTrials * SweepMaxSize);
for (size_t Size = 0; Size <= SweepMaxSize; ++Size) {
for (size_t Size = SweepMinSize; Size <= SweepMaxSize; ++Size) {
CurrentSweepSize = Size;
runTrials(BO, Measurements);
}