statistics: stats cache set default quota as 20% (#58013) (#58817)

ti-chi-bot · web-flow · commit a8977c1008ae · 2025-01-09T12:32:13.000Z
close #58014
diff --git a/pkg/statistics/handle/cache/internal/lfu/lfu_cache.go b/pkg/statistics/handle/cache/internal/lfu/lfu_cache.go
@@ -75,14 +75,14 @@ func NewLFU(totalMemCost int64) (*LFU, error) {
 }
 
 // adjustMemCost adjusts the memory cost according to the total memory cost.
-// When the total memory cost is 0, the memory cost is set to half of the total memory.
+// When the total memory cost is 0, the memory cost is set to 20% of the total memory.
 func adjustMemCost(totalMemCost int64) (result int64, err error) {
 	if totalMemCost == 0 {
 		memTotal, err := memory.MemTotal()
 		if err != nil {
 			return 0, err
 		}
-		return int64(memTotal / 2), nil
+		return int64(memTotal * 20 / 100), nil
 	}
 	return totalMemCost, nil
 }

Original file line number	Diff line number	Diff line change
`@@ -75,14 +75,14 @@ func NewLFU(totalMemCost int64) (*LFU, error) {`
`75`	`75`	`}`
`76`	`76`
`77`	`77`	`// adjustMemCost adjusts the memory cost according to the total memory cost.`
`78`		`-// When the total memory cost is 0, the memory cost is set to half of the total memory.`
	`78`	`+// When the total memory cost is 0, the memory cost is set to 20% of the total memory.`
`79`	`79`	`func adjustMemCost(totalMemCost int64) (result int64, err error) {`
`80`	`80`	`if totalMemCost == 0 {`
`81`	`81`	`memTotal, err := memory.MemTotal()`
`82`	`82`	`if err != nil {`
`83`	`83`	`return 0, err`
`84`	`84`	`}`
`85`		`- return int64(memTotal / 2), nil`
	`85`	`+ return int64(memTotal * 20 / 100), nil`
`86`	`86`	`}`
`87`	`87`	`return totalMemCost, nil`
`88`	`88`	`}`