Messages in this thread | | | Date | Thu, 17 Jun 2004 08:10:31 -0500 | From | Dimitri Sivanich <> | Subject | Re: [PATCH]: Option to run cache reap in thread mode |
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Manfred,
On Wed, Jun 16, 2004 at 08:58:58PM +0200, Manfred Spraul wrote: > Could you try to reduce them? Something like (as root) > > # cd /proc > # cat slabinfo | gawk '{printf("echo \"%s %d %d %d\" > > /proc/slabinfo\n", $1,$9,4,2);}' | bash > > If this doesn't help then perhaps the timer should run more frequently > and scan only a part of the list of slab caches.
I tried the modification you suggested and it had little effect. On a 4 cpu (otherwise idle) system I saw the characteristic 30+ usec interruptions (holdoffs) every 2 seconds.
Since it's running in timer context, this of course includes all of the timer_interrupt logic, but I've verified no other timers running during those times (and I see only very short holdoffs during other timer interrupts).
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