Date: Wed, 19 Dec 2007 14:42:33 -0500 From: Mike Tancsa <mike@sentex.net> To: "Alexandre Biancalana" <biancalana@gmail.com>, freebsd-performance@freebsd.org Subject: Re: Bad performance when accessing a lot of small files Message-ID: <200712191942.lBJJgWmJ018860@lava.sentex.ca> In-Reply-To: <8e10486b0712191109n3d21b02cyf5183ee0cd01d8ce@mail.gmail.co m> References: <8e10486b0712191109n3d21b02cyf5183ee0cd01d8ce@mail.gmail.com>
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At 02:09 PM 12/19/2007, Alexandre Biancalana wrote:
>The behavior that I'm observing and that want your help is when the
>system is accessing some directory with many small files ( directories
>with ~ 1 million of ~30kb files), the performance is very poor.
Hi,
Have you adjusted the dirhash value ? What does
sysctl -a vfs.ufs | grep dirhash
show on your box ? Also, do you have a lot of UIDs in your passwd file ?
---Mike
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