[Gluster-users] Write performance tragically slow
craig at gluster.com
Fri Nov 19 23:50:46 UTC 2010
I have other performance testing running in EC2 this weekend, I'll
add a kernel extract to the test suite, see what I get with various
instance types, EBS design, etc. I'll get the results out to the list on
Senior Systems Engineer
On 11/10/2010 06:23 PM, Pavel Snajdr wrote:
> I imagine you get this kind of messages all the time, but just in case:
> I have setup with 2 storage servers with debian package of gluster -
> version 3.1.0
> They are connected by dedicated 1 gigabit ethernet cards.
> I've set up simple replicated storage with 2 replicas and transport
> over TCP (just followed the how to on the wiki with obvious changes).
> Here goes my problem:
> If I try to copy small files (i.e. extract kernel source) I get a
> horrible results:
> praha-storage2:/mnt/test# time tar xf linux-22.214.171.124.tar.bz2
> real 15m19.825s
> user 0m13.989s
> sys 0m5.152s
> likewise when rsyncing OpenVZ VPSes - I just can't get over 2MB/s in
> I've monitored all resources - CPU load, network, disk I/O - they are
> all used up to 0.00000nothing %.
> Network latency is about 0.11 ms all the time.
> Is this normal, or am I doing something wrong?
> Please help. I am frustrated :(
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