Merge pull request #39394 from thaJeztah/improve_flag_description

Improve description for cpu-rt-period,runtime daemon flags

cmd/dockerd/config_unix.go

@@ -54,8 +54,8 @@ func installConfigFlags(conf *config.Config, flags *pflag.FlagSet) error {
 	flags.IntVar(&conf.OOMScoreAdjust, "oom-score-adjust", -500, "Set the oom_score_adj for the daemon")
 	flags.BoolVar(&conf.Init, "init", false, "Run an init in the container to forward signals and reap processes")
 	flags.StringVar(&conf.InitPath, "init-path", "", "Path to the docker-init binary")
-	flags.Int64Var(&conf.CPURealtimePeriod, "cpu-rt-period", 0, "Limit the CPU real-time period in microseconds")
-	flags.Int64Var(&conf.CPURealtimeRuntime, "cpu-rt-runtime", 0, "Limit the CPU real-time runtime in microseconds")
+	flags.Int64Var(&conf.CPURealtimePeriod, "cpu-rt-period", 0, "Limit the CPU real-time period in microseconds for the parent cgroup for all containers")
+	flags.Int64Var(&conf.CPURealtimeRuntime, "cpu-rt-runtime", 0, "Limit the CPU real-time runtime in microseconds for the parent cgroup for all containers")
 	flags.StringVar(&conf.SeccompProfile, "seccomp-profile", "", "Path to seccomp profile")
 	flags.Var(&conf.ShmSize, "default-shm-size", "Default shm size for containers")
 	flags.BoolVar(&conf.NoNewPrivileges, "no-new-privileges", false, "Set no-new-privileges by default for new containers")