Date: Thu, 29 Nov 2007 06:34:30 +0000 (UTC) From: Peter Wemm <peter@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/compat/linprocfs linprocfs.c src/sys/kern kern_clock.c src/sys/sys pcpu.h resource.h Message-ID: <200711290634.lAT6YUpr004269@repoman.freebsd.org>
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peter 2007-11-29 06:34:30 UTC
FreeBSD src repository
Modified files:
sys/compat/linprocfs linprocfs.c
sys/kern kern_clock.c
sys/sys pcpu.h resource.h
Log:
Move the shared cp_time array (counts %sys, %user, %idle etc) to the
per-cpu area. cp_time[] goes away and a new function creates a merged
cp_time-like array for things like linprocfs, sysctl etc. The
atomic ops for updating cp_time[] in statclock go away, and the scope
of the thread lock is reduced.
sysctl kern.cp_time returns a backwards compatible cp_time[] array.
A new kern.cp_times sysctl returns the individual per-cpu stats.
I have pending changes to make top and vmstat optionally show per-cpu
stats.
I'm very aware that there are something like 5 or 6 other versions "out
there" for doing this - but none were handy when I needed them.
I did merge my changes with John Baldwin's, and ended up replacing a
few chunks of my stuff with his, and stealing some other code.
Reviewed by: jhb
Partly obtained from: jhb
Revision Changes Path
1.117 +16 -5 src/sys/compat/linprocfs/linprocfs.c
1.204 +72 -9 src/sys/kern/kern_clock.c
1.24 +2 -0 src/sys/sys/pcpu.h
1.32 +1 -1 src/sys/sys/resource.h
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