From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Chris Wright <chrisw@osdl.org>
Cc: Matt Mackall <mpm@selenic.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: netpoll/netconsole minor tweaks
Date: Thu, 18 Sep 2003 22:12:36 +0100 [thread overview]
Message-ID: <1063919555.16536.5.camel@dhcp23.swansea.linux.org.uk> (raw)
In-Reply-To: <20030918094832.A16499@osdlab.pdx.osdl.net>
On Iau, 2003-09-18 at 17:48, Chris Wright wrote:
> > <pedant>
> > should be cpu_relax();
> > </pedant>
>
> Hrm, there's many spots that aren't using it. What's the benefit, less
> power consumption? Is it worth a patch to convert other things over?
It speeds up hyperthreading CPUs by letting them know that this
paticular thread is waiting for stuff (sched_yield for silicon)
next prev parent reply other threads:[~2003-09-18 21:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-17 18:24 Chris Wright
2003-09-17 20:51 ` Matt Mackall
2003-09-18 5:17 ` Chris Wright
2003-09-18 12:30 ` Alan Cox
2003-09-18 16:48 ` Chris Wright
2003-09-18 17:13 ` Arjan van de Ven
2003-09-18 17:50 ` Chris Wright
2003-09-18 21:12 ` Alan Cox [this message]
2003-09-18 23:10 ` Jesper Juhl
2003-09-19 7:40 ` Arjan van de Ven
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