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Date: Thu, 26 Jul 2007 14:46:58 +0200 From: Mike Galbraith <efault@....de> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Ingo Molnar <mingo@...e.hu>, Frank Kingswood <frank@...gswood-consulting.co.uk>, Andi Kleen <andi@...stfloor.org>, Nick Piggin <nickpiggin@...oo.com.au>, Ray Lee <ray-lk@...rabbit.org>, Jesper Juhl <jesper.juhl@...il.com>, ck list <ck@....kolivas.org>, Paul Jackson <pj@....com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: RFT: updatedb "morning after" problem [was: Re: -mm merge plans for 2.6.23] On Thu, 2007-07-26 at 03:09 -0700, Andrew Morton wrote: > Setting it to zero will maximise the preservation of the vfs caches. You > wanted 10000 there. > > <bets that nobody will test this> drops caches prior to both updatedb runs. root@...er: df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/hdc3 12500992 1043544 11457448 9% / udev 129162 1567 127595 2% /dev /dev/hdc1 26104 87 26017 1% /boot /dev/hda1 108144 90676 17468 84% /windows/C /dev/hda5 11136 3389 7747 31% /windows/D /dev/hda6 0 0 0 - /windows/E vfs_cache_pressure=10000, updatedb freshly completed: procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 48 76348 420356 104748 0 0 0 0 1137 912 3 1 97 0 ext3_inode_cache 315153 316274 524 7 1 : tunables 54 27 8 : slabdata 45182 45182 0 dentry_cache 224829 281358 136 29 1 : tunables 120 60 8 : slabdata 9702 9702 0 buffer_head 156624 159728 56 67 1 : tunables 120 60 8 : slabdata 2384 2384 0 vfs_cache_pressure=100 (stock), updatedb freshly completed: procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 148 83824 270088 116340 0 0 0 0 1095 330 2 1 97 0 ext3_inode_cache 467257 502495 524 7 1 : tunables 54 27 8 : slabdata 71785 71785 0 dentry_cache 292695 408958 136 29 1 : tunables 120 60 8 : slabdata 14102 14102 0 buffer_head 118329 184384 56 67 1 : tunables 120 60 8 : slabdata 2752 2752 1 Note: updatedb doesn't bother my box, not running enough leaky apps I guess. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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