Date: Tue, 24 Nov 2009 19:57:41 +0000 (UTC) From: Ivan Voras <ivoras@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r199764 - head/sys/kern Message-ID: <200911241957.nAOJvfuw028106@svn.freebsd.org>
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Author: ivoras Date: Tue Nov 24 19:57:41 2009 New Revision: 199764 URL: http://svn.freebsd.org/changeset/base/199764 Log: Make ULE process usage (%CPU) accounting usable again by keeping track of the last tick we incremented on. Submitted by: matthew.fleming/at/isilon.com, is/at/rambler-co.ru Reviewed by: jeff (who thinks there should be a better way in the future) Approved by: gnn (mentor) MFC after: 3 weeks Modified: head/sys/kern/sched_ule.c Modified: head/sys/kern/sched_ule.c ============================================================================== --- head/sys/kern/sched_ule.c Tue Nov 24 19:26:53 2009 (r199763) +++ head/sys/kern/sched_ule.c Tue Nov 24 19:57:41 2009 (r199764) @@ -103,6 +103,7 @@ struct td_sched { u_int ts_slptime; /* Number of ticks we vol. slept */ u_int ts_runtime; /* Number of ticks we were running */ int ts_ltick; /* Last tick that we were running on */ + int ts_incrtick; /* Last tick that we incremented on */ int ts_ftick; /* First tick that we were running on */ int ts_ticks; /* Tick count */ #ifdef KTR @@ -1991,6 +1992,7 @@ sched_fork_thread(struct thread *td, str */ ts2->ts_ticks = ts->ts_ticks; ts2->ts_ltick = ts->ts_ltick; + ts2->ts_incrtick = ts->ts_incrtick; ts2->ts_ftick = ts->ts_ftick; child->td_user_pri = td->td_user_pri; child->td_base_user_pri = td->td_base_user_pri; @@ -2182,11 +2184,12 @@ sched_tick(void) * Ticks is updated asynchronously on a single cpu. Check here to * avoid incrementing ts_ticks multiple times in a single tick. */ - if (ts->ts_ltick == ticks) + if (ts->ts_incrtick == ticks) return; /* Adjust ticks for pctcpu */ ts->ts_ticks += 1 << SCHED_TICK_SHIFT; ts->ts_ltick = ticks; + ts->ts_incrtick = ticks; /* * Update if we've exceeded our desired tick threshhold by over one * second.
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