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From: Nikita Danilov <nikita@clusterfs.com>
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Date: Thu, 6 Jul 2006 00:14:08 +0400
To: "Ananiev, Leonid I" <leonid.i.ananiev@intel.com>
Cc: "Linux Kernel Mailing List" <Linux-Kernel@vger.kernel.org>
Subject: Re: [PATCH]  mm: moving dirty pages balancing to pdfludh entirely
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Ananiev, Leonid I writes:
 > I have added proposed by Nikita lines
 > 		if (pdflush_operation(background_writeout, 0))
 >                 writeback_inodes(&wbc);
 > and tested it with iozone. The throughput is 50-53 MB/sec. It is less
 > than 74-105 MB/sec results sent earlier.

If this change has any effect at all, then maximal number of pdflush
threads has been started. But there is only one device, so what are
these threads doing?

 > 
 > Leonid

Nikita.