package vmimport import ( "fmt" "testing" ) func BenchmarkRowsUnmarshal(b *testing.B) { s := `{"metric":{"__name__":"up","job":"node_exporter","instance":"localhost:9100"},"values":[0,0,0],"timestamps":[1549891472010,1549891487724,1549891503438]} {"metric":{"__name__":"up","job":"prometheus","instance":"localhost:9090"},"values":[1,1,1],"timestamps":[1549891461511,1549891476511,1549891491511]} {"metric":{"__name__":"up","job":"node_exporter","instance":"foobar.com:9100"},"values":[0,0,0],"timestamps":[1549891472010,1549891487724,1549891503438]} {"metric":{"__name__":"up","job":"prometheus","instance":"xxx.yyy.zzz:9090"},"values":[1,1,1],"timestamps":[1549891461511,1549891476511,1549891491511]} ` b.SetBytes(int64(len(s))) b.ReportAllocs() b.RunParallel(func(pb *testing.PB) { var rows Rows for pb.Next() { rows.Unmarshal(s) if len(rows.Rows) != 4 { panic(fmt.Errorf("unexpected number of rows parsed; got %d; want 4", len(rows.Rows))) } } }) }