ZFS high cpu load with low io and cpu usage

All your general support questions for OpenZFS on OS X.

ZFS high cpu load with low io and cpu usage

Postby bibin » Wed Apr 20, 2016 10:50 am

Hi,

We are using zfs on one of our servers. Both deduplication and compression features of zfs are also enabled in it. We were trying to migrate a vps disk from an ext4 server using 'DD', but the migration process seems to be resulted in an increased load on zfs server and hence the migration couldn't able to complete. The load issue is fixed by rebooting the zfs server. We have a powerful CPU with 32 cores on zfs server. Didn't find anything helpful from 'iotop' and 'top' commands outputs. It seems like all the 32 cores are not functioning during the migration process. Please help us.

Thank You !
bibin
 
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Re: ZFS high cpu load with low io and cpu usage

Postby Brendon » Wed Apr 20, 2016 1:05 pm

Dare I ask - are you sure you are in the right forum? - I'm not sure I can name a 32 CPU machine that OSX and O3X run on at the moment....

Brendon
Brendon
 
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