From: David Miller <davem@davemloft.net>
To: eliezer.tamir@linux.intel.com
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
eliezer@tamir.org.il
Subject: Re: [PATCH net] net: add cpu_relax to busy poll loop
Date: Wed, 28 Aug 2013 17:46:22 -0400 (EDT) [thread overview]
Message-ID: <20130828.174622.268609863849057534.davem@davemloft.net> (raw)
In-Reply-To: <20130825072346.31655.84970.stgit@ladj378.jer.intel.com>
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Sun, 25 Aug 2013 10:23:46 +0300
> Add a cpu_relaxt to sk_busy_loop.
>
> Julie Cummings reported performance issues when hyperthreading is on.
> Arjan van de Ven observed that we should have a cpu_relax() in the
> busy poll loop.
>
> Reported-by: Julie Cummings <julie.a.cummings@intel.com>
> Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Applied, thank you.
prev parent reply other threads:[~2013-08-28 21:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-25 7:23 [PATCH net] net: add cpu_relax to busy poll loop Eliezer Tamir
2013-08-28 21:46 ` David Miller [this message]
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