From: Daniel Mack <daniel@caiaq.org>
To: Adrian Bunk <bunk@kernel.org>
Cc: alsa-devel@alsa-project.org
Subject: Re: [PATCH] snd_usb_caiaq: use likely()/unlikely()
Date: Sat, 12 Apr 2008 23:01:19 +0200 [thread overview]
Message-ID: <20080412210119.GB13041@buzzloop.caiaq.de> (raw)
In-Reply-To: <20080412202127.GB8849@cs181133002.pp.htv.fi>
Hi,
On Sat, Apr 12, 2008 at 11:21:27PM +0300, Adrian Bunk wrote:
> Does it bring any measurable advantage?
>
> Otherwise it's usually better to let the compiler decide how to optimize
> the code.
I didn't really measure, but how should the compiler know how likely a
certain condition in hardware state is? I thought, in such cases it's
generally a good idea to give the compiler some hints.
Daniel
next prev parent reply other threads:[~2008-04-12 21:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-12 20:13 [PATCH] snd_usb_caiaq: use likely()/unlikely() Daniel Mack
2008-04-12 20:21 ` Adrian Bunk
2008-04-12 21:01 ` Daniel Mack [this message]
2008-04-12 21:38 ` Adrian Bunk
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