Date: Thu, 20 Dec 2007 20:41:32 +0300 From: dima <_pppp@mail.ru> To: Alexandre Biancalana <biancalana@gmail.com> Cc: freebsd-performance@freebsd.org, =?koi8-r?Q?Dennis_Kj=E6r_Jensen?= <signout@signout.dk> Subject: Re[2]: Bad performance when accessing a lot of small files Message-ID: <E1J5POm-000NHN-00._pppp-mail-ru@f116.mail.ru> In-Reply-To: <8e10486b0712200910v32ecbfa5h72fb0dc2b82a1009@mail.gmail.com> References: <8e10486b0712200910v32ecbfa5h72fb0dc2b82a1009@mail.gmail.com>
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>> Increase the dirhash maxmem >> I have 'sysctl -w vfs.ufs.dirhash_maxmem=268435456' (256Mb)in my >> rc.local on a (maildir) fileserver here >> > This is a zfs filesystem, by the way I raise this limit as suggested. > > I let you know Can you provide sysctl vfs.zfs output then? ZFS can be tuned by increasing kern.maxvnodes sysctl (don't forget to increase vm.kmem_size and vm.kmem_size_max accordingly). Do it until vfs.numvnodes would stabilize below the kern.maxvnodes value during peak load patterns.
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