linux-kernel - Re: [RFC PATCH 0/6] Convert all tasklets to workqueues

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Date:	Thu, 28 Jun 2007 16:46:30 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Dan Williams <dan.j.williams@...el.com>
cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Christoph Hellwig <hch@...radead.org>,
	john stultz <johnstul@...ibm.com>,
	Oleg Nesterov <oleg@...sign.ru>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>, kuznet@....inr.ac.ru,
	Jeff Garzik <jeff@...zik.org>
Subject: Re: [RFC PATCH 0/6] Convert all tasklets to workqueues

On Thu, 28 Jun 2007, Dan Williams wrote:
> >
> Unfortunately setting the thread to real time priority makes
> throughput slightly worse.  Instead of floating around 35MB/s the
> resync speed is stuck around 30MB/s:

That is really strange. If you higher the prio of the work queue it
gets worst?  Something really strange is happening here?  Are you using
CONFIG_PREEMPT?

-- Steve

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