Bad performance when accessing a lot of small files

[Alexandre Biancalana]

On 12/20/07, dima <_pppp at 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