From: Eric Dumazet <dada1@cosmosbay.com>
To: Folkert van Heusden <folkert@vanheusden.com>
Cc: Ed Tomlinson <edt@aei.ca>,
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 14:38:07 +0100 [thread overview]
Message-ID: <43A95ABF.1030309@cosmosbay.com> (raw)
In-Reply-To: <20051221132046.GJ27831@vanheusden.com>
Folkert van Heusden a écrit :
>
>
> size-131072 0 0 131072
> size-65536 0 0 65536
> size-32768 20 20 32768
> size-16384 8 9 16384
> size-8192 37 38 8192
> size-4096 269 269 4096
> size-2048 793 910 2048
> size-1024 564 608 1024
> size-512 702 856 512
> size-256 1485 4005 256
> size-128 1209 1350 128
> size-64 2858 3363 64
> size-32 1538 2714 64
> Intel(R) Xeon(TM) MP CPU 3.00GHz
> address sizes : 40 bits physical, 48 bits virtual
>
>
> Folkert van Heusden
Hi Folkert
Your results are interesting : size-32 seems to use objects of size 64 !
> size-32 1538 2714 64 <<HERE>>
So I guess that size-32 cache could be avoided at least for EMT (I take you
run a 64 bits kernel ?)
Eric
next prev parent reply other threads:[~2005-12-21 13:38 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
2005-12-21 13:20 ` Folkert van Heusden
2005-12-21 13:38 ` Eric Dumazet [this message]
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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