Some comments on ZFS

Maxim Sobolev sobomax at
Tue Apr 17 00:19:50 UTC 2007

Joerg t wrote:
>> There is something weird - Just ran same test again to see whether it
>> was a fluke - it still take 1h12 - however I saw the oppersite of Joerg.
>> The "systat -vm" Freemem was permently on 2,2GB - this on a 4GB
>> system that normally shows a 1,2GB - or less after a buildworld.
>> hmm. Pawel are there tests that can help? 
> also how can we determine the real memory consumption by zfs,arc and  his  vfs cache share  ?
> how can we precisely instrument zfs ?

The "vmstat -m" will give you precise breakdown of kernel memory usage.


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