Date: Wed, 8 Jun 2016 17:19:09 +0200 From: Eduardo Morras <emorrasg@yahoo.es> To: freebsd-questions@freebsd.org Cc: ciprian.craciun@gmail.com Subject: Re: Feedback on UFS2 tuning for large number of small files (~100m) Message-ID: <20160608171909.2af02643a73297c0e252189e@yahoo.es> In-Reply-To: <67d9d4ae-03c1-f141-92d0-daaa4b168b16@qeng-ho.org> References: <CA%2BTk8fyZjdvb70HFfwJBD=%2BJ4PU9Ae5FcsaQgSvMZW5B2T3YLA@mail.gmail.com> <20160608125325.71fab3fe95b0bc3c6272ea7c@yahoo.es> <67d9d4ae-03c1-f141-92d0-daaa4b168b16@qeng-ho.org>
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On Wed, 8 Jun 2016 14:58:54 +0100 Arthur Chance <freebsd@qeng-ho.org> wrote: > On 08/06/2016 11:53, Eduardo Morras via freebsd-questions wrote: > > On Wed, 8 Jun 2016 11:14:40 +0300 > > Ciprian Dorin Craciun <ciprian.craciun@gmail.com> wrote: > > > >> Hello all! (Please keep me in CC as I'm not subscribed on the > >> mailing list. Should I perhaps post this to the `freebsd-fs` > >> mailing list?) > > > > vfs.ufs.dirhash_maxmem: maximum allowed dirhash memory usage > > Minor point: this looks like it's dependent on the memory size. On my > 32GB machine it's 27.8 MB, on my 4GB machine it's 6.5 MB, and on a 2GB > machine it's 3.3 MB. Yes, you are right. Don't know when it changed, initially it had 2MB static and thought (wrongly) that it's still static value. My fault. > > Defaul value is 6MB. Check first dirhash usage with > > --- --- Eduardo Morras <emorrasg@yahoo.es>
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