From: Matt Mackall <mpm@selenic.com>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Andi Kleen <ak@suse.de>, Zwane Mwaikambo <zwane@linuxpower.ca>,
linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [PATCH][2.6] Completely out of line spinlocks / x86_64
Date: Mon, 9 Aug 2004 09:38:30 -0500 [thread overview]
Message-ID: <20040809143829.GN16310@waste.org> (raw)
In-Reply-To: <20040809114912.GA5287@logos.cnet>
On Mon, Aug 09, 2004 at 08:49:12AM -0300, Marcelo Tosatti wrote:
>
> Hi Zwane,
>
> Just seen your bonnie++ results (should have the whole thread before replying),
> looks great, except a slight reduction in sequential output:
>
> out-of-line spinlocks:
> Version @version@ ------Sequential Output------ --Sequential Input- --Random-
> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
> stp2-000 2G 7018 99 64560 36 21694 16 6789 97 43729 14 340.6 1
> stp2-000 2G 7055 99 64836 39 21899 16 6752 97 44827 17 330.8 2
> stp2-000 2G 7023 99 64525 38 22987 17 6704 96 44777 14 337.3 1
>
> mainline:
> Version @version@ ------Sequential Output------ --Sequential Input- --Random-
> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
> stp2-000 2G 7048 99 64912 38 22510 17 6732 96 43900 14 332.0 1
> stp2-000 2G 7018 99 63821 39 21732 16 6787 97 44889 17 326.7 2
> stp2-000 2G 7063 99 63834 38 22361 17 6738 97 43310 14 338.3 1
> ------Sequential Create------ --------Random Create--------
>
> Probably just noise, still I think its worth mentioning.
That really does look like noise here, though this is probably not the
ideal benchmark test. My hope is that we can stick this in -mm for a
bit and get some wider benchmarking of it (hence the config option).
--
Mathematics is the supreme nostalgia of our time.
next prev parent reply other threads:[~2004-08-09 15:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-08 4:50 [PATCH][2.6] Completely out of line spinlocks / x86_64 Zwane Mwaikambo
2004-08-08 6:08 ` Zwane Mwaikambo
2004-08-09 11:23 ` Andi Kleen
2004-08-09 11:41 ` Marcelo Tosatti
2004-08-09 11:49 ` Marcelo Tosatti
2004-08-09 14:38 ` Matt Mackall [this message]
2004-08-09 21:31 ` Zwane Mwaikambo
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