FS of choice for max random iops ( Maildir )
ivoras at freebsd.org
Fri Sep 16 11:43:53 UTC 2011
On 16/09/2011 12:31, freebsd at top-consulting.net wrote:
> A. TEST1: dd bs=1024 if=/dev/zero of=/data/t1 count=1M
> 1. ZFS performed the worst, averaging 67MB/sec
> 2. UFS + gjournal did around 130MB/sec
> 3. UFS did around 190MB/sec
> B. TEST2 ( random file creation ): bonnie++ -d /data -c 10 -s 0 -n 50 -u 0
> 1. UFS + gjournal performed the worst
> 2. ZFS performed somewhat better
> 3. UFS performed the best again ( about 50% better )
> C. TEST3 ( sequential writing ): bonnie++ -d /data -c 10 -s 8088 -n 0 -u 0
> 1. UFS + gjournal crashed the box
> 2. ZFS performed average
> 3. UFS performed better than ZFS ( about 50% better )
> I really like the concepts behind ZFS and UFS + Journaling but the
> performance hit is quite drastic when compared to UFS.
> What I'm looking for here is max IOPS when doing random read/writes. Is
> UFS the best choice for this ? Do my results make sense ?
Your tests do look a bit odd - ZFS usually does better on sequential and
UFS on random IO (rw mix). For random IO I'd go with UFS.
Try comparing with blogbench.
More information about the freebsd-questions