cmd/containerd-shim: set GOMAXPROCS to 2
The shim doesn't need massive concurrency and a bunch of CPUs to do its
job correctly. We can reduce the number of threads to save memory at
little cost to performance.
@@ -60,6 +60,13 @@ func main() {
if debugFlag {
logrus.SetLevel(logrus.DebugLevel)
}
+
+ if os.Getenv("GOMAXPROCS") == "" {
+ // If GOMAXPROCS hasn't been set, we default to a value of 2 to reduce
+ // the number of Go stacks present in the shim.
+ runtime.GOMAXPROCS(2)
+ }
+
if err := executeShim(); err != nil {
fmt.Fprintf(os.Stderr, "containerd-shim: %s\n", err)
os.Exit(1)
