Date: Thu, 09 Aug 2012 12:15:07 -0500 From: Alan Cox <alc@rice.edu> To: Peter Jeremy <peter@rulingia.com> Cc: Alan Cox <alc@freebsd.org>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r238536 - head/sys/vm Message-ID: <5023F01B.9030005@rice.edu> In-Reply-To: <20120809104536.GA21404@server.rulingia.com> References: <201207161813.q6GIDhm1068181@svn.freebsd.org> <20120809104536.GA21404@server.rulingia.com>
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On 08/09/2012 05:45, Peter Jeremy wrote: > On 2012-Jul-16 18:13:43 +0000, Alan Cox<alc@freebsd.org> wrote: >> Various improvements to vm_contig_grow_cache(). Most notably, even when >> it can't sleep, it can still move clean pages from the inactive queue to >> the cache. Also, when a page is cached, there is no need to restart the >> scan. The "next" page pointer held by vm_contig_launder() is still >> valid. Finally, add a comment summarizing what vm_contig_grow_cache() >> does based upon the value of "tries". >> >> MFC after: 3 weeks > I realise 3 weeks is only just up but I'm wondering if you intend to > MFC this (and hopefully r238456) soon. I've had a quick try at > merging this back to 8.x but it relies on vm_pageout_page_lock() > and vm_page_unlock() which were added in r207694 and I'm not sure > about the impact of merging that. > Probably not until the 9.1 release cycle runs its course. As for 8.x, the change will have to be revised for the different locking schema in 8.x. Alan
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