Date: Fri, 27 Mar 2015 09:01:26 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r280751 - stable/10/usr.sbin/powerd Message-ID: <201503270901.t2R91QSK030363@svn.freebsd.org>
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Author: mav Date: Fri Mar 27 09:01:25 2015 New Revision: 280751 URL: https://svnweb.freebsd.org/changeset/base/280751 Log: MFC r280286: Add comment explaining existing powerd behavior on SMP systems. Modified: stable/10/usr.sbin/powerd/powerd.c Directory Properties: stable/10/ (props changed) Modified: stable/10/usr.sbin/powerd/powerd.c ============================================================================== --- stable/10/usr.sbin/powerd/powerd.c Fri Mar 27 08:59:21 2015 (r280750) +++ stable/10/usr.sbin/powerd/powerd.c Fri Mar 27 09:01:25 2015 (r280751) @@ -127,6 +127,12 @@ static int devd_pipe = -1; #define DEVD_RETRY_INTERVAL 60 /* seconds */ static struct timeval tried_devd; +/* + * This function returns summary load of all CPUs. It was made so + * intentionally to not reduce performance in scenarios when several + * threads are processing requests as a pipeline -- running one at + * a time on different CPUs and waiting for each other. + */ static int read_usage_times(int *load) {
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