From: Ed Tomlinson <edt@aei.ca>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@suse.de>
Subject: Re: [POLL] SLAB : Are the 32 and 192 bytes caches really usefull on x86_64 machines ?
Date: Wed, 21 Dec 2005 07:44:51 -0500 [thread overview]
Message-ID: <200512210744.52559.edt@aei.ca> (raw)
In-Reply-To: <43A91C57.20102@cosmosbay.com>
On Wednesday 21 December 2005 04:11, Eric Dumazet wrote:
> (x86_64 : PAGE_SIZE = 4096, L1_CACHE_BYTES = 64)
>
> On my machines, I can say that the 32 and 192 sizes could be avoided in favor
> in spending less cpu cycles in __find_general_cachep()
>
> Could some of you post the result of the following command on your machines :
>
> # grep "size-" /proc/slabinfo |grep -v DMA|cut -c1-40
size-131072 0 0 131072
size-65536 3 3 65536
size-32768 0 0 32768
size-16384 3 3 16384
size-8192 28 28 8192
size-4096 184 184 4096
size-2048 272 272 2048
size-1024 300 300 1024
size-512 275 376 512
size-256 717 720 256
size-192 1120 1220 192
size-64 7720 8568 64
size-128 45019 65830 128
size-32 1627 3333 32
amd64 up
Ed Tomlinson
next prev parent reply other threads:[~2005-12-21 12:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-21 8:00 [ANNOUNCE] GIT 1.0.0 Junio C Hamano
2005-12-21 9:11 ` [POLL] SLAB : Are the 32 and 192 bytes caches really usefull on x86_64 machines ? Eric Dumazet
2005-12-21 9:22 ` David S. Miller
2005-12-21 10:03 ` Jan-Benedict Glaw
2005-12-21 9:46 ` Alok kataria
2005-12-21 12:44 ` Ed Tomlinson [this message]
2005-12-21 13:20 ` Folkert van Heusden
2005-12-21 13:38 ` Eric Dumazet
2005-12-21 14:09 ` Folkert van Heusden
2005-12-21 16:40 ` Dave Jones
2005-12-21 19:36 ` Folkert van Heusden
2005-12-28 8:32 ` Denis Vlasenko
2005-12-28 8:54 ` Denis Vlasenko
2005-12-28 17:57 ` Andreas Kleen
2005-12-28 21:01 ` Matt Mackall
2005-12-29 1:26 ` Dave Jones
2005-12-30 4:06 ` Steven Rostedt
2006-01-02 8:46 ` Pekka Enberg
2006-01-02 8:51 ` Pekka Enberg
2006-01-02 12:33 ` Steven Rostedt
2006-01-02 12:31 ` Steven Rostedt
2005-12-29 1:29 ` Dave Jones
2005-12-29 1:50 ` Keith Owens
2005-12-29 2:39 ` Dave Jones
2006-01-02 15:03 ` Helge Hafting
2006-01-04 5:26 ` Dave Jones
2005-12-30 21:13 ` Marcelo Tosatti
2005-12-31 20:13 ` Andi Kleen
2005-12-29 19:48 ` Steven Rostedt
2005-12-29 21:16 ` Andi Kleen
2006-01-02 8:37 ` Pekka Enberg
2006-01-02 12:45 ` Andi Kleen
2006-01-02 13:04 ` Pekka J Enberg
2006-01-02 13:56 ` Andi Kleen
2006-01-02 15:09 ` Pekka J Enberg
2006-01-02 15:46 ` Jörn Engel
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