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https://github.com/tendermint/tendermint.git
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e80dd00894
* Performance improvements for the event query API (#7319) Rework the implementation of event query parsing and execution to improve performance and reduce memory usage. Previous memory and CPU profiles of the pubsub service showed query processing as a significant hotspot. While we don't have evidence that this is visibly hurting users, fixing it is fairly easy and self-contained. Updates #6439. Typical benchmark results comparing the original implementation (PEG) with the reworked implementation (Custom): ``` TEST TIME/OP BYTES/OP ALLOCS/OP SPEEDUP MEM SAVING BenchmarkParsePEG-12 51716 ns 526832 27 BenchmarkParseCustom-12 2167 ns 4616 17 23.8x 99.1% BenchmarkMatchPEG-12 3086 ns 1097 22 BenchmarkMatchCustom-12 294.2 ns 64 3 10.5x 94.1% ```
73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
package query_test
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import (
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"testing"
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"github.com/tendermint/tendermint/libs/pubsub/query"
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oldquery "github.com/tendermint/tendermint/libs/pubsub/query/oldquery"
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)
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const testQuery = `tm.events.type='NewBlock' AND abci.account.name='Igor'`
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var testEvents = map[string][]string{
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"tm.events.index": {
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"25",
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},
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"tm.events.type": {
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"NewBlock",
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},
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"abci.account.name": {
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"Anya", "Igor",
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},
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}
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func BenchmarkParsePEG(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_, err := oldquery.New(testQuery)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkParseCustom(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_, err := query.New(testQuery)
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkMatchPEG(b *testing.B) {
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q, err := oldquery.New(testQuery)
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if err != nil {
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b.Fatal(err)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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ok, err := q.Matches(testEvents)
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if err != nil {
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b.Fatal(err)
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} else if !ok {
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b.Error("no match")
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}
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}
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}
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func BenchmarkMatchCustom(b *testing.B) {
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q, err := query.New(testQuery)
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if err != nil {
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b.Fatal(err)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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ok, err := q.Matches(testEvents)
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if err != nil {
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b.Fatal(err)
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} else if !ok {
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b.Error("no match")
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}
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}
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}
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