Date: Tue, 8 Oct 2013 13:32:58 +0200 From: Davide Italiano <davide@freebsd.org> To: Adrian Chadd <adrian@freebsd.org> Cc: Kirk McKusick <mckusick@freebsd.org>, Alan Cox <alc@freebsd.org>, Peter Holm <peter@holm.cc>, freebsd-fs@freebsd.org, Ivan Voras <ivoras@freebsd.org>, freebsd-hackers <freebsd-hackers@freebsd.org> Subject: Re: Call fo comments - raising vfs.ufs.dirhash_reclaimage? Message-ID: <CACYV=-HYCNeuP70JdFBrG9vXXj-E6E%2BOHcJ7Ov-Dzazx_59cag@mail.gmail.com> In-Reply-To: <CAJ-VmonngDnZuphdsSP%2B4qGaz4u%2B%2B-bxzqrP5pqi80OOj64GSQ@mail.gmail.com> References: <kvkvi7$iv7$1@ger.gmane.org> <20130828181228.0d3618dd@ernst.home> <CAF-QHFU80YC3W-k%2BTKM=y3JiVYi=1fp5CJjbCCk1y0VKXzcRQg@mail.gmail.com> <201309031507.33098.jhb@freebsd.org> <CACYV=-GZPbC03stS6PsihfJ688kbjna2-n0%2BPdctr3L9hvSvag@mail.gmail.com> <20131008063433.GA47506@x2.osted.lan> <CAJ-VmonngDnZuphdsSP%2B4qGaz4u%2B%2B-bxzqrP5pqi80OOj64GSQ@mail.gmail.com>
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On Tue, Oct 8, 2013 at 1:25 PM, Adrian Chadd <adrian@freebsd.org> wrote: > Hi, > Hi Adrian, > Please try it out on a -10 VM with something RAM limited - say, 128mb w/ > GENERIC. See how it behaves. > > I've successfully done buildworlds on 10-i386 with 128mb RAM. Let's try not > to break that before releng/10 is cut. > > thanks, > > This is not supposed to hit 10-STABLE, at least not before proper review. This is the reason why it was proposed on mailing lists. Also, if you read the patch you'll end up with realizing this should behave better on low memory environment because it unconditionally cleans 10% of the cache every time. Previous changes in this area just did the opposite keeping a lot more of memory around. I hope this makes sense to you. Thanks, -- Davide "There are no solved problems; there are only problems that are more or less solved" -- Henri Poincare
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