From 163ecdff060f2fa9e8f5238882fd0137493556a6 Mon Sep 17 00:00:00 2001 From: Shailabh Nagar <nagar@watson.ibm.com> Date: Sun, 30 Jul 2006 03:03:11 -0700 Subject: [PATCH] delay accounting: temporarily enable by default Enable delay accounting by default so that feature gets coverage testing without requiring special measures. Earlier, it was off by default and had to be enabled via a boot time param. This patch reverses the default behaviour to improve coverage testing. It can be removed late in the kernel development cycle if its believed users shouldn't have to incur any cost if they don't want delay accounting. Or it can be retained forever if the utility of the stats is deemed common enough to warrant keeping the feature on. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- Documentation/accounting/delay-accounting.txt | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'Documentation/accounting') diff --git a/Documentation/accounting/delay-accounting.txt b/Documentation/accounting/delay-accounting.txt index be215e58423b..1443cd71d263 100644 --- a/Documentation/accounting/delay-accounting.txt +++ b/Documentation/accounting/delay-accounting.txt @@ -64,11 +64,13 @@ Compile the kernel with CONFIG_TASK_DELAY_ACCT=y CONFIG_TASKSTATS=y -Enable the accounting at boot time by adding -the following to the kernel boot options - delayacct +Delay accounting is enabled by default at boot up. +To disable, add + nodelayacct +to the kernel boot options. The rest of the instructions +below assume this has not been done. -and after the system has booted up, use a utility +After the system has booted up, use a utility similar to getdelays.c to access the delays seen by a given task or a task group (tgid). The utility also allows a given command to be -- cgit v1.2.1