From mboxrd@z Thu Jan 1 00:00:00 1970 From: fwdnilfsml.to.11df-2pMamKoQTv4@public.gmane.org Subject: Strange "flush" process bahaviour Date: Tue, 13 Nov 2012 00:19:08 +0400 Message-ID: <50A159BC.9060600@li.ru> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-nilfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Hello! Some time ago I've noticed, that "flush" kernel process associated with device running nilfs2 filesystem, generate huge amount of IO activity (using 100% CPU time). "iotop" utility show speeds about 5-15 GB\S on that "flush" process, but no actual disk activity happens. This condition lasts about 1-2 minutes, and then it stops for some time (usually 10-20 minutes). Is this a normal behavior ? I'm using kernel 3.6, and nilfs running on luks-encrypted partitions, that belongs to software raid-1 array. //Sorry for my English -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html