quot;James Page"
, "ceph-devel" , "Stephen L
Blinick" , "Jay Vosburgh"
, "Colin Ian King" ,
"Patricia Gaughen" , "Leann Ogasawara"
Envoyé: Samedi 21 Février 2015 09:10:29
Objet: Re: Memstore performance improvements v0.90 vs v0.87
e" , "James Page"
, "ceph-devel" , "Stephen L
Blinick" , "Jay Vosburgh"
, "Colin Ian King" ,
"Patricia Gaughen" , "Leann Ogasawara"
Envoyé: Vendredi 20 Février 2015 17:12:46
Objet: Re: Memstore performance improvem
;Stephen L Blinick" , "Jay Vosburgh"
, "Colin Ian King" , "Patricia Gaughen" ,
"Leann Ogasawara"
Envoyé: Vendredi 20 Février 2015 16:38:02
Objet: Re: Memstore performance improvements v0.90 vs v0.87
I think paying attention to NUMA is good advice. One of
On 02/20/2015 10:03 AM, Alexandre DERUMIER wrote:
http://rhelblog.redhat.com/2015/01/12/mysteries-of-numa-memory-management-revealed/
It's possible that this could be having an effect on the results.
Isn't auto numa balancing enabled by default since kernel 3.8 ?
No idea, I'm behind the tim
oc/sys/kernel/numa_balancing
- Mail original -
De: "Mark Nelson"
À: "Blair Bethwaite" , "James Page"
Cc: "ceph-devel" , "Stephen L Blinick"
, "Jay Vosburgh" ,
"Colin Ian King" , "Patricia Gaughen"
, "Leann Ogas
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Hash: SHA256
Hi Mark
On 20/02/15 15:51, Mark Nelson wrote:
>> I've CC'ed both Colin and Jay on this mail - so if anyone has
>> any specific questions about the testing they can chime in with
>> responses.
> Good testing! Other than the NUMA questions in the oth
On 02/20/2015 03:07 AM, James Page wrote:
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Hash: SHA256
Hi All
The Ubuntu Kernel team have spent the last few weeks investigating the
apparent performance disparity between RHEL 7 and Ubuntu 14.04; we've
focussed efforts in a few ways (see below).
All testin
I think paying attention to NUMA is good advice. One of the things that
apparently changed in RHEL7 is that they are now doing automatic NUMA
tuning:
http://rhelblog.redhat.com/2015/01/12/mysteries-of-numa-memory-management-revealed/
It's possible that this could be having an effect on the re
Actually, I'm concerned about the correctness of benchmark using
MemStore. AFAR it may cause lots of memory frag and cause performance
degraded hugely. Maybe set "filestore_blackhole=true" is more
precious?
On Fri, Feb 20, 2015 at 5:49 PM, Blair Bethwaite
wrote:
> Hi James,
>
> Interesting resul
Hi James,
Interesting results, but did you do any tests with a NUMA system? IIUC
the original report was from a dual socket setup, and that'd
presumably be the standard setup for most folks (both OSD server and
client side).
Cheers,
On 20 February 2015 at 20:07, James Page wrote:
> -BEGIN P
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hi All
The Ubuntu Kernel team have spent the last few weeks investigating the
apparent performance disparity between RHEL 7 and Ubuntu 14.04; we've
focussed efforts in a few ways (see below).
All testing has been done using the latest Firefly relea
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hi Mark
On 28/01/15 21:51, Mark Nelson wrote:
> Per Sage's suggestion in the perf meeting this morning I dumped
> sysctl -a on both systems and wrote a little script to compare an
> arbitrary number of sysctl output files. It only lists settings
>
27, 2015 2:03 PM
To: Blinick, Stephen L; Ceph Development
Subject: Re: Memstore performance improvements v0.90 vs v0.87
Hi Stephen,
Took a little longer than I wanted it to, but I finally got some results
looking at RHEL7 and Ubuntu 14.04 in our test lab. This is with a recent
master pull.
Tests are
-Original Message-
From: Mark Nelson [mailto:mark.nel...@inktank.com]
Sent: Tuesday, January 27, 2015 2:03 PM
To: Blinick, Stephen L; Ceph Development
Subject: Re: Memstore performance improvements v0.90 vs v0.87
Hi Stephen,
Took a little longer than I wanted it to, but I finally got s
ent
Subject: Re: Memstore performance improvements v0.90 vs v0.87
On 01/14/2015 04:32 PM, Blinick, Stephen L wrote:
I went back and grabbed 87 and built it on RHEL7 as well, and performance is
also similar (much better). I've also run it on a few systems (Dual socket
10-core E5v2, Dual sock
> > > cephx_sign_messages = false
> > > cephx_require_signatures = false
> > > ms_dispatch_throttle_bytes = 0
> > > throttler_perf_counter = false
> > >
> > > [osd]
> > > osd_client_message_size_cap = 0
> > > osd_client_mess
gt; osd_client_message_cap = 0
> > osd_enable_op_tracker = false
> >
> > Also, run more clients (in your case rados bench) and see if it is
> > scaling or not (it should, till it saturates your cpu).
> >
> > But, your observation on RHEL7 vs UBUNTU 14.04 LTS i
false
> > ms_dispatch_throttle_bytes = 0
> > throttler_perf_counter = false
> >
> > [osd]
> > osd_client_message_size_cap = 0
> > osd_client_message_cap = 0
> > osd_enable_op_tracker = false
> >
> > Also, run more clients (in your case rados b
egards
> Somnath
> -----Original Message-----
> From: ceph-devel-ow...@vger.kernel.org
> [mailto:ceph-devel-ow...@vger.kernel.org] On Behalf Of Blinick,
> Stephen L Sent: Wednesday, January 14, 2015 2:32 PM To: Ceph
> Development Subject: RE: Memstore performance improvements v0.90
Ceph Development
Subject: Re: Memstore performance improvements v0.90 vs v0.87
On 01/14/2015 04:32 PM, Blinick, Stephen L wrote:
> I went back and grabbed 87 and built it on RHEL7 as well, and performance is
> also similar (much better). I've also run it on a few systems (Dual socket
2:32 PM
To: Ceph Development
Subject: RE: Memstore performance improvements v0.90 vs v0.87
I went back and grabbed 87 and built it on RHEL7 as well, and performance is
also similar (much better). I've also run it on a few systems (Dual socket
10-core E5v2, Dual socket 6-core E5v3). So, it'
: RE: Memstore performance improvements v0.90 vs v0.87
I went back and grabbed 87 and built it on RHEL7 as well, and performance is
also similar (much better). I've also run it on a few systems (Dual socket
10-core E5v2, Dual socket 6-core E5v3). So, it's related to my switch to
RHEL7,
kernel.org] On Behalf Of Blinick, Stephen L
Sent: Wednesday, January 14, 2015 12:06 AM
To: Ceph Development
Subject: Memstore performance improvements v0.90 vs v0.87
In the process of moving to a new cluster (RHEL7 based) I grabbed v0.90,
compiled RPM's and re-ran the simple local-node memstor
and v0.87. Will post when
I get more data.
Thanks,
Stephen
-Original Message-
From: ceph-devel-ow...@vger.kernel.org
[mailto:ceph-devel-ow...@vger.kernel.org] On Behalf Of Blinick, Stephen L
Sent: Wednesday, January 14, 2015 12:06 AM
To: Ceph Development
Subject: Memstore performance im
In the process of moving to a new cluster (RHEL7 based) I grabbed v0.90,
compiled RPM's and re-ran the simple local-node memstore test I've run on .80 -
.87. It's a single Memstore OSD and a single Rados Bench client locally on the
same node. Increasing queue depth and measuring latency /IOPS.
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