From: Eric Wong <normalperson@yhbt.net>
To: xtu4 <xiaobing.tu@intel.com>
Cc: linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org,
linux-mm@kvack.org, di.zhang@intel.com
Subject: Re: resend--[PATCH] improve read ahead in kernel
Date: Sun, 16 Dec 2012 02:15:08 +0000 [thread overview]
Message-ID: <20121216021508.GA3629@dcvr.yhbt.net> (raw)
In-Reply-To: <50C6AB45.606@intel.com>
xtu4 <xiaobing.tu@intel.com> wrote:
> resend it, due to format error
>
> Subject: [PATCH] when system in low memory scenario, imaging there is a mp3
> play, ora video play, we need to read mp3 or video file
> from memory to page cache,but when system lack of memory,
> page cache of mp3 or video file will be reclaimed.once read
> in memory, then reclaimed, it will cause audio or video
> glitch,and it will increase the io operation at the same
> time.
To me, this basically describes how POSIX_FADV_NOREUSE should work.
I would like to have this ability via fadvise (and not CONFIG_).
Also, I think your patch has too many #ifdefs to be accepted.
next prev parent reply other threads:[~2012-12-16 2:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-09 15:57 [PATCH] " xtu4
2012-12-09 10:18 ` Randy Dunlap
2012-12-11 3:40 ` resend--[PATCH] " xtu4
2012-12-16 2:15 ` Eric Wong [this message]
2012-12-20 6:20 ` Simon Jeons
2012-12-20 10:55 ` Roman Gushchin
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