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Bring back BenchmarkLoadRealWLs (#14757)

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This was part of #14525 which was reverted.
I still think that having this benchmark committed in to the repo is
useful.

Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
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Oleg Zaytsev 2024-09-02 18:20:10 +02:00 committed by GitHub
parent 7dd74ca6b7
commit ce7d830f1f
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26
tsdb/head_test.go
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@ -438,6 +438,32 @@ func BenchmarkLoadWLs(b *testing.B) {
}
}
// BenchmarkLoadRealWLs will be skipped unless the BENCHMARK_LOAD_REAL_WLS_DIR environment variable is set.
// BENCHMARK_LOAD_REAL_WLS_DIR should be the folder where `wal` and `chunks_head` are located.
func BenchmarkLoadRealWLs(b *testing.B) {
dir := os.Getenv("BENCHMARK_LOAD_REAL_WLS_DIR")
if dir == "" {
b.SkipNow()
}
wal, err := wlog.New(nil, nil, filepath.Join(dir, "wal"), wlog.CompressionNone)
require.NoError(b, err)
b.Cleanup(func() { wal.Close() })
wbl, err := wlog.New(nil, nil, filepath.Join(dir, "wbl"), wlog.CompressionNone)
require.NoError(b, err)
b.Cleanup(func() { wbl.Close() })
// Load the WAL.
for i := 0; i < b.N; i++ {
opts := DefaultHeadOptions()
opts.ChunkDirRoot = dir
h, err := NewHead(nil, nil, wal, wbl, opts, nil)
require.NoError(b, err)
require.NoError(b, h.Init(0))
}
}
// TestHead_HighConcurrencyReadAndWrite generates 1000 series with a step of 15s and fills a whole block with samples,
// this means in total it generates 4000 chunks because with a step of 15s there are 4 chunks per block per series.
// While appending the samples to the head it concurrently queries them from multiple go routines and verifies that the