Date: Mon, 12 Jul 2010 12:55:09 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: Peter Jeremy <peterjeremy@acm.org> Cc: freebsd-stable@freebsd.org, Richard Lee <ricky@csua.berkeley.edu> Subject: Re: Serious zfs slowdown when mixed with another file system (ufs/msdosfs/etc.). Message-ID: <4C3AE67D.9050401@icyb.net.ua> In-Reply-To: <20100712093933.GA27950@server.vk2pj.dyndns.org> References: <20100711182511.GA21063@soda.CSUA.Berkeley.EDU> <20100712093818.GA27693@server.vk2pj.dyndns.org> <20100712093933.GA27950@server.vk2pj.dyndns.org>
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on 12/07/2010 12:39 Peter Jeremy said the following: > /* > - * If pages are needed or we're within 2048 pages > - * of needing to page need to reclaim > + * If we're within 2048 pages of pagedaemon start, reclaim... > */ > - if (vm_pages_needed || (vm_paging_target() > -2048)) > + if (vm_pages_needed && (vm_paging_target() > -2048)) I am not sure that what comment says is actually what the code checks. For both pre-patch and post-patch versions. -- Andriy Gapon
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