Date: Thu, 20 Dec 2007 15:12:14 -0200 From: "Alexandre Biancalana" <biancalana@gmail.com> To: dima <_pppp@mail.ru> Cc: freebsd-performance@freebsd.org, Mike Tancsa <mike@sentex.net> Subject: Re: Re[2]: Bad performance when accessing a lot of small files Message-ID: <8e10486b0712200912g12966a07nfd8bb361adf0eecd@mail.gmail.com> In-Reply-To: <E1J5OSL-000Fl1-00._pppp-mail-ru@f156.mail.ru> References: <8e10486b0712191207r5e256b84xf6cb0bbafc6cfd20@mail.gmail.com> <E1J5OSL-000Fl1-00._pppp-mail-ru@f156.mail.ru>
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On 12/20/07, dima <_pppp@mail.ru> wrote: > > Try to run this command while listing your large directory. You'll see that dirhash_mem will reach dirhash_maxmem. So, the value of dirhash_maxmem should be increased. > > One more hint. Mounting filesystems with -noatime option greatly improves read performance. Apply this also, if you haven't done this yet. I already set this # zfs get atime backup NAME PROPERTY VALUE SOURCE backup atime off local
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