[Gluster-users] GlusterFS performance

[Yavor Marinov]

I've just enabled profiling of the volume and this is the information 
from the profile info printed:

[root at gfs1 ~]# gluster volume profile test info
Brick: 93.123.32.41:/data
-------------------------
Cumulative Stats:
  %-latency   Avg-latency   Min-Latency   Max-Latency   No. of 
calls         Fop
  ---------   -----------   -----------   ----------- 
------------        ----
     100.00     148.00 us     148.00 us     148.00 us 1      LOOKUP

     Duration: 13950 seconds
    Data Read: 0 bytes
Data Written: 0 bytes

Interval 4 Stats:

     Duration: 7910 seconds
    Data Read: 0 bytes
Data Written: 0 bytes

[root at gfs1 ~]#

Anything here that might be useful ?


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On 05/23/2013 01:10 PM, Явор Маринов wrote:
> I've made a mistake we are using 30Mbit connectivity on all of the 
> nodes. Below is a iperf test between the node and the client
>
> [root at gfs4 ~]# iperf -c 93.123.32.41
> ------------------------------------------------------------
> Client connecting to 93.123.32.41, TCP port 5001
> TCP window size: 23.2 KByte (default)
> ------------------------------------------------------------
> [  3] local 93.123.32.44 port 49838 connected with 93.123.32.41 port 5001
> [ ID] Interval       Transfer     Bandwidth
> [  3]  0.0-10.1 sec  49.9 MBytes  41.5 Mbits/sec
> [root at gfs4 ~]#
>
> But when trying to copy a 1Gb file on the client's mounted volume the 
> speed between the client and the node is ~500kb/s
>
>
> ---
> Find out about our new Cloud service - Cloudware.bg 
> <http://cloudware.bg/?utm_source=email&utm_medium=signature&utm_content=link&utm_campaign=newwebsite>
> Access anywhere. Manage it yourself. Pay as you go.
> ------------------------------------------------------------------------
> *Yavor Marinov*
> System Administrator
>
> Neterra Ltd.
> Telephone: +359 2 975 16 16
> Fax: +359 2 975 34 36
> Mobile: +359 888 610 048
> www.neterra.net <http://www.neterra.net>
>
>
> On 05/23/2013 12:16 PM, Nux! wrote:
>> On 23.05.2013 09:41, Явор Маринов wrote:
>>> Thanks for your reply.
>>>
>>> No matter how many nodes (currently the volume is only with its own
>>> node) the speed is really slow. For testing purposes, i made a volume
>>> with only one node, without any replication - however the speed is
>>> still ~500kb/s. The cloud servers are limited to 30Gbit/s but still
>>> the traffic when writing to the node is ~500kb/s
>>>
>>> i'm using 3.3.1 glusterfsd with kernel 2.6.18-348.el5xen and i need
>>> to know if the the problem is within the kernel.
>>
>> I don't think it is a problem with gluster; I never used el5 for 
>> this, but I doubt there's an inherent problem with it either. That 
>> speed limit looks odd to me and I think it's somewhere in your setup.
>> Have you done any actual speed tests in the VMs?
>>
>
>
>
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