On 05/05/2015 03:43 PM, Kamal wrote:
Hi Vijay,
We Tried the same. But its doesn't improve speed.
For testing glusterfs, we are running storage in virtual machines. Is
that will make any difference ?
Performance testing on physical machines is a better bet as it takes
some variables away from the equation.
Since you happen to use a replicated volume, can you try by enabling
this option?
gluster volume set <volname> cluster.ensure-durability off
Additionally you might want to try "strace -Tcf git clone .." and
"gluster volume profile ..." to figure out where the latency is stemming
from.
But, copying the same folder between two storage machines is really
fast. fyi.
Does this copying involve gluster or not?
Regards,
Vijay
Regards,
Kamal
---- On Tue, 05 May 2015 15:08:27 +0530 *Vijay
Bellur<vbellur@xxxxxxxxxx>* wrote ----
On 05/05/2015 12:59 PM, Kamal wrote:
> Hi Amukher,
>
> Even after upgrade to 3.7 small files transfer rate is slow.
>
> Below is the volume info.
>
> Volume Name: integvol1
> Type: Replicate
> Volume ID: 31793ba4-eeca-462a-a0cd-9adfb281225b
> Status: Started
> Number of Bricks: 1 x 2 = 2
> Transport-type: tcp
> Bricks:
> Brick1: integ-gluster1:/srv/sdb2/brick4
> Brick2: integ-gluster2:/srv/sdb2/brick4
> Options Reconfigured:
> server.event-threads: 30
> client.event-threads: 30
> ----
>
> I understand that for replication it would take some more time, but
> here its taking more time.
>
>
> Time taken for git clone in non gluster directory = 25 sec
>
> Time taken for git clone in gluster directory = 14 minutes
>
> Its a huge difference. Plz let me know any other tuning
parameters need
> to be done.
>
>
I have seen this before and it primarily seems to be related to the
readdir calls done by git clone.
Turning on these options might help to some extent:
gluster volume set <volname> performance.readdir-ahead on
gluster volume set <volname> cluster.readdir-optimize on
Please do let us know what you observe with these options enabled.
Regards,
Vijay
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