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Add num scrapes as tsdb write benchmark command flag 

By default same value that was hardcoded is used, but with the
new flag added the number of scrapes can be increased to any value.

Signed-off-by: Pau Freixes <pfreixes@gmail.com>
This commit is contained in:
Pau Freixes 2021-03-09 11:14:17 +01:00
parent 8d2a8f4939
commit b1ac4a45e6
2 changed files with 4 additions and 3 deletions
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3
cmd/promtool/main.go
View File

@ -124,6 +124,7 @@ func main() {
tsdbBenchWriteCmd := tsdbBenchCmd.Command("write", "Run a write performance benchmark.")
benchWriteOutPath := tsdbBenchWriteCmd.Flag("out", "Set the output path.").Default("benchout").String()
benchWriteNumMetrics := tsdbBenchWriteCmd.Flag("metrics", "Number of metrics to read.").Default("10000").Int()
benchWriteNumScrapes := tsdbBenchWriteCmd.Flag("scrapes", "Number of scrapes to simulate.").Default("3000").Int()
benchSamplesFile := tsdbBenchWriteCmd.Arg("file", "Input file with samples data, default is ("+filepath.Join("..", "..", "tsdb", "testdata", "20kseries.json")+").").Default(filepath.Join("..", "..", "tsdb", "testdata", "20kseries.json")).String()
tsdbAnalyzeCmd := tsdbCmd.Command("analyze", "Analyze churn, label pair cardinality.")
@ -195,7 +196,7 @@ func main() {
os.Exit(RulesUnitTest(*testRulesFiles...))
case tsdbBenchWriteCmd.FullCommand():
os.Exit(checkErr(benchmarkWrite(*benchWriteOutPath, *benchSamplesFile, *benchWriteNumMetrics)))
os.Exit(checkErr(benchmarkWrite(*benchWriteOutPath, *benchSamplesFile, *benchWriteNumMetrics, *benchWriteNumScrapes)))
case tsdbAnalyzeCmd.FullCommand():
os.Exit(checkErr(analyzeBlock(*analyzePath, *analyzeBlockID, *analyzeLimit)))

4
cmd/promtool/tsdb.go
View File

@ -58,7 +58,7 @@ type writeBenchmark struct {
logger log.Logger
}
func benchmarkWrite(outPath, samplesFile string, numMetrics int) error {
func benchmarkWrite(outPath, samplesFile string, numMetrics, numScrapes int) error {
b := &writeBenchmark{
outPath: outPath,
samplesFile: samplesFile,
@ -118,7 +118,7 @@ func benchmarkWrite(outPath, samplesFile string, numMetrics int) error {
if err := b.startProfiling(); err != nil {
return err
}
total, err = b.ingestScrapes(lbs, 3000)
total, err = b.ingestScrapes(lbs, numScrapes)
if err != nil {
return err
}