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tailscaled: no longer tune gcpercent

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Usage of userspace-networking is increasing, and the aggressive GC
tuning causes a significant reduction in performance in that mode.

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2022-03-28 18:11:04 -07:00 committed by James Tucker
parent 4f1d6c53cb
commit 8de7f9bff7
1 changed files with 0 additions and 9 deletions
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9
cmd/tailscaled/tailscaled.go
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@ -25,7 +25,6 @@ import (
"os/signal" "os/signal"
"path/filepath" "path/filepath"
"runtime" "runtime"
"runtime/debug"
"strings" "strings"
"syscall" "syscall"
"time" "time"
@ -130,14 +129,6 @@ var subCommands = map[string]*func([]string) error{
} }
func main() { func main() {
// We aren't very performance sensitive, and the parts that are
// performance sensitive (wireguard) try hard not to do any memory
// allocations. So let's be aggressive about garbage collection,
// unless the user specifically overrides it in the usual way.
if _, ok := os.LookupEnv("GOGC"); !ok {
debug.SetGCPercent(10)
}
printVersion := false printVersion := false
flag.IntVar(&args.verbose, "verbose", 0, "log verbosity level; 0 is default, 1 or higher are increasingly verbose") flag.IntVar(&args.verbose, "verbose", 0, "log verbosity level; 0 is default, 1 or higher are increasingly verbose")
flag.BoolVar(&args.cleanup, "cleanup", false, "clean up system state and exit") flag.BoolVar(&args.cleanup, "cleanup", false, "clean up system state and exit")