From: Steve French <smfrench@gmail.com>
To: Nick Piggin <npiggin@suse.de>
Cc: linux-fsdevel@vger.kernel.org, Steve French <sfrench@samba.org>,
linux-cifs-client@lists.samba.org
Subject: Re: [patch] cifs: use add_to_page_cache_lru
Date: Tue, 20 Apr 2010 22:31:39 -0500 [thread overview]
Message-ID: <y2k524f69651004202031p269f2e31nbd7fe37b527b452@mail.gmail.com> (raw)
In-Reply-To: <20100319011310.GG25636@laptop>
queued up for when the merge window opens ...
thx
On Thu, Mar 18, 2010 at 8:13 PM, Nick Piggin <npiggin@suse.de> wrote:
> On Thu, Mar 18, 2010 at 01:43:17PM -0500, Steve French wrote:
>> Seems reasonable to me (also Shaggy acked this). Any idea how likely
>> it would affect performance (and would thus need to run through some
>> simple iozone and cthon (timing mode) or similar perf testing)
>
> It should positively affect LRU ordering, and CPU efficiency, but both
> such a tiny amount it should be in the noise. It wouldn't affect IO
> patterns (except as a side effect of slightly different pagecache
> reclaim, but again in the noise).
>
> I wouldn't worry about benchmarking it.
>
>
--
Thanks,
Steve
prev parent reply other threads:[~2010-04-21 3:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-17 6:23 [patch] cifs: use add_to_page_cache_lru Nick Piggin
2010-03-18 18:43 ` Steve French
2010-03-19 1:13 ` Nick Piggin
2010-04-21 3:31 ` Steve French [this message]
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