From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 3 Sep 2002 17:40:28 -0700 From: William Lee Irwin III Subject: Re: 2.5.33-mm1 Message-ID: <20020904004028.GS888@holomorphy.com> References: <3D7437AC.74EAE22B@zip.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline In-Reply-To: <3D7437AC.74EAE22B@zip.com.au> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: lkml , "linux-mm@kvack.org" List-ID: On Mon, Sep 02, 2002 at 09:16:44PM -0700, Andrew Morton wrote: > http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.33/2.5.33-mm1/ > Seven new patches - mostly just code cleanups. > +slablru-speedup.patch > A patch to improve slablru cpu efficiency. Ed is > redoing this. count_list() appears to be the largest consumer of cpu after this is done, or so say the profiles after running updatedb by hand on 2.5.33-mm1 on a 900MHz P-III T21 Thinkpad with 256MB of RAM. 4608 __rdtsc_delay 164.5714 2627 __generic_copy_to_user 36.4861 2401 count_list 42.8750 1415 find_inode_fast 29.4792 1325 do_anonymous_page 3.3801 It also looks like there's either a bit of internal fragmentation or a missing kmem_cache_reap() somewhere: ext3_inode_cache: 20001KB 51317KB 38.97 dentry_cache: 4734KB 18551KB 25.52 radix_tree_node: 1811KB 1923KB 94.20 buffer_head: 1132KB 1378KB 82.12 It does stay quite a bit more nicely bounded than without slablru though. Maybe it's old news. Just thought I'd try running a test on something tiny for once. (new kbd/mouse config options were a PITA BTW) Cheers, Bill -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/