From: Eric Dumazet <eric.dumazet@gmail.com>
To: brian <knotwurk@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] increase pipe size/buffers/atomicity :D
Date: Thu, 08 Apr 2010 07:11:07 +0200 [thread overview]
Message-ID: <1270703467.8141.51.camel@edumazet-laptop> (raw)
In-Reply-To: <x2sb985fb501004071838z51a832dftdfaece15e5a0e154@mail.gmail.com>
Le mercredi 07 avril 2010 à 19:38 -0600, brian a écrit :
> (tested and working with 2.6.32.8 kernel, on a Athlon/686)
>
>
> --- include/linux/pipe_fs_i.h.orig 2010-04-06 22:56:51.000000000 -0500
> +++ include/linux/pipe_fs_i.h 2010-04-06 22:56:58.000000000 -0500
> @@ -3,7 +3,7 @@
>
> #define PIPEFS_MAGIC 0x50495045
>
> -#define PIPE_BUFFERS (16)
> +#define PIPE_BUFFERS (32)
Doing such a thing puts high pressure on stack usage on some parts of
the kernel, and actually slow down some benches.
next prev parent reply other threads:[~2010-04-08 5:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-08 1:38 brian
2010-04-08 5:11 ` Eric Dumazet [this message]
2010-04-08 15:14 ` Steven J. Magnani
2010-04-09 19:50 ` Brian Haslett
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