Commit-ID: 2779ac167b1a1bf8153dca9f3a141c6148c6b89f Gitweb: http://git.kernel.org/tip/2779ac167b1a1bf8153dca9f3a141c6148c6b89f Author: Michael Kerrisk <mtk.manpages@xxxxxxxxx> AuthorDate: Fri, 2 May 2014 12:13:10 +0200 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Sun, 4 May 2014 20:46:32 +0200 timer_stats/doc: Fix /proc/timer_stats documentation Documentation/timers/timer_stats.txt claims: "The readout of /proc/timer_stats automatically disables sampling. The sampled information is kept until a new sample period is started. This allows multiple readouts." Some simple testing shows that reading from /proc/timer_stats does not disable sampling. Looking back over past source code, it appears that it never did. Signed-off-by: Michael Kerrisk <mtk.manpages@xxxxxxxxx> Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/53636FB6.9060407@xxxxxxxxx [ Small tidyup of the changelog. ] Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- Documentation/timers/timer_stats.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/timers/timer_stats.txt b/Documentation/timers/timer_stats.txt index 8abd40b..de835ee 100644 --- a/Documentation/timers/timer_stats.txt +++ b/Documentation/timers/timer_stats.txt @@ -39,9 +39,9 @@ To stop a sample period issue: The statistics can be retrieved by: # cat /proc/timer_stats -The readout of /proc/timer_stats automatically disables sampling. The sampled -information is kept until a new sample period is started. This allows multiple -readouts. +While sampling is enabled, each readout from /proc/timer_stats will see +newly updated statistics. Once sampling is disabled, the sampled information +is kept until a new sample period is started. This allows multiple readouts. Sample output of /proc/timer_stats: -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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