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cmd: add gogc flag

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This commit is contained in:
Gary Rong 2026-07-15 14:40:33 +08:00
parent c3f2851872
commit ea50f0b1b0
2 changed files with 18 additions and 2 deletions
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1
cmd/geth/main.go
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@ -102,6 +102,7 @@ var (
utils.CacheLogSizeFlag,
utils.FDLimitFlag,
utils.MemoryLimitFlag,
utils.GOGCFlag,
utils.CryptoKZGFlag,
utils.ListenPortFlag,
utils.DiscoveryPortFlag,

19
cmd/utils/flags.go
View file

@ -559,6 +559,12 @@ var (
Usage: "Soft memory limit for the Go runtime in megabytes (default = no limit)",
Category: flags.PerfCategory,
}
GOGCFlag = &cli.IntFlag{
Name: "gogc",
Usage: "Go garbage collection target percentage (default = 100, negative disables)",
Value: 100,
Category: flags.PerfCategory,
}
CryptoKZGFlag = &cli.StringFlag{
Name: "crypto.kzg",
Usage: "KZG library implementation to use; gokzg (recommended) or ckzg",
@ -1768,10 +1774,19 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
}
}
godebug.SetGCPercent(100)
// Setting go runtime settings
if ctx.IsSet(GOGCFlag.Name) {
gcPercent := ctx.Int(GOGCFlag.Name)
log.Info("Sanitizing Go's GC trigger", "percent", gcPercent)
godebug.SetGCPercent(gcPercent)
}
if ctx.IsSet(MemoryLimitFlag.Name) {
memLimit := int64(ctx.Int(MemoryLimitFlag.Name)) * 1024 * 1024
log.Debug("Setting Go memory limit", "MB", memLimit/1024/1024)
if memLimit > int64(total) {
log.Info("Sanitizing memory limit", "provided(MB)", memLimit/1024/1024, "updated(MB)", total/1024/1024)
memLimit = int64(total)
}
log.Info("Setting Go memory limit", "MB", memLimit/1024/1024)
godebug.SetMemoryLimit(memLimit)
}