From b3da2a73ff5a2953a4ad8ebbf0aa7e6965ff9de2 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 24 Oct 2007 18:23:50 +0200 Subject: sched: document profile=sleep requiring CONFIG_SCHEDSTATS profile=sleep only works if CONFIG_SCHEDSTATS is set. This patch notes the limitation in Documentation/kernel-parameters.txt and prints a warning at boot-time if profile=sleep is used without CONFIG_SCHEDSTAT. Signed-off-by: Mel Gorman Signed-off-by: Ingo Molnar --- Documentation/kernel-parameters.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'Documentation/kernel-parameters.txt') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a13d69b2217..8ae5fac08df 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1444,7 +1444,8 @@ and is between 256 and 4096 characters. It is defined in the file Param: "schedule" - profile schedule points. Param: - step/bucket size as a power of 2 for statistical time based profiling. - Param: "sleep" - profile D-state sleeping (millisecs) + Param: "sleep" - profile D-state sleeping (millisecs). + Requires CONFIG_SCHEDSTATS Param: "kvm" - profile VM exits. processor.max_cstate= [HW,ACPI] -- cgit v1.2.3