Hi! Attached patch adds following clock ids: CLOCK_REALTIME_COARSE CLOCK_MONOTONIC_COARSE CLOCK_BOOTTIME -- Cyril Hrubis chrubis@xxxxxxx
>From 2cf31b0e19c15f093e060ef1b5f2f9ca0f42888d Mon Sep 17 00:00:00 2001 From: Cyril Hrubis <chrubis@xxxxxxx> Date: Wed, 20 Feb 2013 17:52:52 +0100 Subject: [PATCH] clock_getres.2: Add linux specific clocks. Add following linux specific clocks: CLOCK_REALTIME_COARSE CLOCK_MONOTONIC_COARSE CLOCK_BOOTTIME Signed-off-by: Cyril Hrubis <chrubis@xxxxxxx> --- man2/clock_getres.2 | 21 +++++++++++++++++++-- 1 files changed, 19 insertions(+), 2 deletions(-) diff --git a/man2/clock_getres.2 b/man2/clock_getres.2 index 794dd65..d82e883 100644 --- a/man2/clock_getres.2 +++ b/man2/clock_getres.2 @@ -27,8 +27,6 @@ .\" 2003-08-24 aeb, large parts rewritten .\" 2004-08-06 Christoph Lameter <clameter@xxxxxxx>, SMP note .\" -.\" FIXME: Linux 2.6.39 adds CLOCK_BOOTTIME -.\" .TH CLOCK_GETRES 2 2012-11-07 "" "Linux Programmer's Manual" .SH NAME clock_getres, clock_gettime, clock_settime \- clock and time functions @@ -130,6 +128,12 @@ and by the incremental adjustments performed by .BR adjtime (3) and NTP. .TP +.BR CLOCK_REALTIME_COARSE " (since Linux 2.6.32; Linux-specific)" +.\" Added in commit da15cfdae03351c689736f8d142618592e3cebc3 +Faster but less precise version of +.BR CLOCK_REALTIME. +Use when you need very fast, but not fine-grained timestamps. +.TP .B CLOCK_MONOTONIC Clock that cannot be set and represents monotonic time since some unspecified starting point. @@ -148,6 +152,19 @@ that is not subject to NTP adjustments or the incremental adjustments performed by .BR adjtime (3). .TP +.BR CLOCK_MONOTONIC_COARSE " (since Linux 2.6.32; Linux-specific)" +.\" Added in commit da15cfdae03351c689736f8d142618592e3cebc3 +Faster but less precise version of +.BR CLOCK_MONOTONIC. +Use when you need very fast, but not fine-grained timestamps. +.TP +.BR CLOCK_BOOTTIME " (since Linux 2.6.39; Linux-specific)" +.\" Added in commit 7fdd7f89006dd5a4c702fa0ce0c272345fa44ae0 +Identical to +.BR CLOCK_MONOTONIC , +except it also includes any time spent in suspend. This allows applications to +get a suspend aware monotonic clock. +.TP .B CLOCK_PROCESS_CPUTIME_ID High-resolution per-process timer from the CPU. .TP -- 1.7.8.6
