Bad performance when accessing a lot of small files

Mike Tancsa mike at
Wed Dec 19 11:42:34 PST 2007

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.

         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 ?


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