On Tue, Sep 7 at 17:13, Russ Price wrote:
On 09/07/2010 03:58 PM, Craig Stevenson wrote:
I am working on a home file server. After reading a wide range of
blogs and forums, I have a few questions that are still not clear
to me....
1. Is there a benefit in having quad core CPU (e.g. Athlon II X4
vs X2)? All of the web blogs seem to suggest using lower-wattage
dual core CPUs. But; with the recent advent of dedup, SHA256
checksum, etc., I am now wondering if opensolaris is better served
with quad core.
With a big RAIDZ3, it's well worth having extra cores. A scrub on my
eight-disk RAIDZ2 uses about 60% of all four cores on my Athlon II X4
630.
How are you measuring using 60% across all four cores?
I kicked off a scrub just to see, and we're scrubbing at 200MB/s (2
vdevs) and the CPU is 94% idle, 6% kernel, 0% IOWAIT.
zpool-tank is using 3.2% CPU as shown by 'ps aux | grep tank'
Am I missing something?
--
Eric D. Mudama
edmud...@mail.bounceswoosh.org
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
