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app/vmalert-tool: optimise regex (#6291)

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every time function **parseInputValue** execute, these regexp are
initialized. which situation reduce the performance.
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jackyin 2024-05-17 20:21:49 +08:00 committed by GitHub
parent be291c36f7
commit fe5846211f
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1 changed files with 3 additions and 2 deletions
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5
app/vmalert-tool/unittest/input.go
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@ -18,6 +18,8 @@ import (
"github.com/VictoriaMetrics/metricsql"
)
var numReg = regexp.MustCompile(`\D?\d*\D?`)
// series holds input_series defined in the test file
type series struct {
Series string `yaml:"series"`
@ -86,13 +88,12 @@ func writeInputSeries(input []series, interval *promutils.Duration, startStamp t
func parseInputValue(input string, origin bool) ([]sequenceValue, error) {
var res []sequenceValue
items := strings.Split(input, " ")
reg := regexp.MustCompile(`\D?\d*\D?`)
for _, item := range items {
if item == "stale" {
res = append(res, sequenceValue{Value: decimal.StaleNaN})
continue
}
vals := reg.FindAllString(item, -1)
vals := numReg.FindAllString(item, -1)
switch len(vals) {
case 1:
if vals[0] == "_" {