What are your pool settings? That can affect your read/write speeds as much as anything in the ceph.conf file.
On Mon, Jul 17, 2017, 4:55 PM Gencer Genç <gencer@xxxxxxxxxxxxx> wrote:
I don't think so.
Because I tried one thing a few minutes ago. I opened 4 ssh channel and
run rsync command and copy bigfile to different targets in cephfs at the
same time. Then i looked into network graphs and i see numbers up to
1.09 gb/s. But why single copy/rsync cannot exceed 200mb/s? What
prevents it im really wonder this.
Gencer.
-----Original Message-----
From: Patrick Donnelly [mailto:pdonnell@xxxxxxxxxx]
Sent: 17 Temmuz 2017 Pazartesi 23:21
To: gencer@xxxxxxxxxxxxx
Cc: Ceph Users <ceph-users@xxxxxxxxxxxxxx>
Subject: Re: Yet another performance tuning for CephFS
On Mon, Jul 17, 2017 at 1:08 PM, <gencer@xxxxxxxxxxxxx> wrote:
> But lets try another. Lets say i have a file in my server which is 5GB. If i
> do this:
>
> $ rsync ./bigfile /mnt/cephfs/targetfile --progress
>
> Then i see max. 200 mb/s. I think it is still slow :/ Is this an expected?
Perhaps that is the bandwidth limit of your local device rsync is reading from?
--
Patrick Donnelly
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