[mythtv-users] ZFS - what's the scoop?
drescherjm at gmail.com
Wed Oct 17 18:33:43 UTC 2007
> is ZFS actually available for Linux now? i didn't know that it was
> supported aside from experimentally...
It is a fuse module so it runs in the userspace instead of the kernel.
I did some testing a few weeks back and although it has a lot of great
features there is one very big problem. Performance is very very bad.
With a zfs filesystem on a linux software raid6 that nets reads at
266MB/s and writes over 100 MB/s I was only able to read or write at
around 20 MB/s and with compression enabled this went down to less
than 5MB/s. The problem appeared that it was pausing between
transfers. It also had a high CPU load but not 100%.
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