From: Tejun Heo <tj@kernel.org>
To: "Kanigeri, Hari" <h-kanigeri2@ti.com>
Cc: linux-kernel@vger.kernel.org, Tony Lindgren <tony@atomide.com>,
linux-omap@vger.kernel.org
Subject: Re: [PATCH 01/32] arm/omap: use system_wq in mailbox
Date: Tue, 4 Jan 2011 06:24:21 +0100 [thread overview]
Message-ID: <20110104052421.GD6748@mtj.dyndns.org> (raw)
In-Reply-To: <AANLkTimMK2Ec8SQiRyRBR+MdVKhAmMaaf+oa0VK3wWsf@mail.gmail.com>
Hello,
On Mon, Jan 03, 2011 at 03:35:45PM -0600, Kanigeri, Hari wrote:
> This was changed to dedicated work queue because of performance issues
> when there is heavy mailbox traffic between the cores.
>
> Reference:
> http://www.mail-archive.com/linux-omap@vger.kernel.org/msg24240.html
Using dedicated workqueue or system_wq doesn't make any difference in
terms of execution latency anymore. Sleeping work items no longer
delay execution of other work items. If mailbox is very latency
sensitive, it might make sense to create a HIGHPRI workqueue but that
usually isn't necessary.
Thank you.
--
tejun
next prev parent reply other threads:[~2011-01-04 5:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1294062595-30097-1-git-send-email-tj@kernel.org>
2011-01-03 13:49 ` [PATCH 01/32] arm/omap: use system_wq in mailbox Tejun Heo
2011-01-03 21:35 ` Kanigeri, Hari
2011-01-04 5:24 ` Tejun Heo [this message]
2011-01-25 13:47 ` Tejun Heo
2011-01-25 15:34 ` Hari Kanigeri
2011-01-25 15:37 ` Tejun Heo
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