> -Original Message-
> From: Sage Weil [mailto:sw...@redhat.com]
> Sent: Wednesday, October 07, 2015 9:48 PM
> To: Deneau, Tom
> Cc: Mark Nelson; Gregory Farnum; ceph-devel@vger.kernel.org
> Subject: RE: perf counters from a performance discrepancy
>
> > I fi
On Thu, 8 Oct 2015, Deneau, Tom wrote:
> > -Original Message-
> > From: Sage Weil [mailto:sw...@redhat.com]
> > Sent: Wednesday, October 07, 2015 9:48 PM
> > To: Deneau, Tom
> > Cc: Mark Nelson; Gregory Farnum; ceph-devel@vger.kernel.org
> > Subject:
evel-ow...@vger.kernel.org] On Behalf Of Sage Weil
Sent: Thursday, October 08, 2015 8:56 AM
To: Deneau, Tom
Cc: Mark Nelson; Gregory Farnum; ceph-devel@vger.kernel.org
Subject: RE: perf counters from a performance discrepancy
On Thu, 8 Oct 2015, Deneau, Tom wrote:
> > -Original Message
> -Original Message-
> From: Deneau, Tom
> Sent: Wednesday, September 23, 2015 3:05 PM
> To: 'Mark Nelson'; Gregory Farnum; Sage Weil
> Cc: ceph-devel@vger.kernel.org
> Subject: RE: perf counters from a performance discrepancy
>
>
>
> > -Original M
> I finally got around to looking at the dump_historic_ops output for the
> 1-client and 2-client cases.
> As you recall these are all read-ops. so the events in the dump are
>initiated
>reached_pg
>started
>done
>
> The pattern I see for most of the slow ops recorded in the
Hi all --
Looking for guidance with perf counters...
I am trying to see whether the perf counters can tell me anything about the
following discrepancy
I populate a number of 40k size objects in each of two pools, poolA and poolB.
Both pools cover osds on a single node, 5 osds total.
*
On Wed, Sep 23, 2015 at 11:19 AM, Sage Weil wrote:
> On Wed, 23 Sep 2015, Deneau, Tom wrote:
>> Hi all --
>>
>> Looking for guidance with perf counters...
>> I am trying to see whether the perf counters can tell me anything about the
>> following discrepancy
>>
>> I populate a
On 09/23/2015 01:25 PM, Gregory Farnum wrote:
On Wed, Sep 23, 2015 at 11:19 AM, Sage Weil wrote:
On Wed, 23 Sep 2015, Deneau, Tom wrote:
Hi all --
Looking for guidance with perf counters...
I am trying to see whether the perf counters can tell me anything about the
On Wed, 23 Sep 2015, Deneau, Tom wrote:
> Hi all --
>
> Looking for guidance with perf counters...
> I am trying to see whether the perf counters can tell me anything about the
> following discrepancy
>
> I populate a number of 40k size objects in each of two pools, poolA and poolB.
> Both
Sage Weil; ceph-devel@vger.kernel.org
> Subject: Re: perf counters from a performance discrepancy
>
> Just to eliminate a variable, can you reproduce this on master, first with
> the simple messenger, and then with the async messenger? (make sure to
> switch the messengers on all
> -Original Message-
> From: Gregory Farnum [mailto:gfar...@redhat.com]
> Sent: Wednesday, September 23, 2015 3:39 PM
> To: Deneau, Tom
> Cc: ceph-devel@vger.kernel.org
> Subject: Re: perf counters from a performance discrepancy
>
> On Wed, Sep 23, 2015 at 9:33
, Tom <tom.den...@amd.com> wrote:
>
>
>> -Original Message-
>> From: Mark Nelson [mailto:mnel...@redhat.com]
>> Sent: Wednesday, September 23, 2015 1:43 PM
>> To: Gregory Farnum; Sage Weil
>> Cc: Deneau, Tom; ceph-devel@vger.kernel.org
>> Subject:
> -Original Message-
> From: Mark Nelson [mailto:mnel...@redhat.com]
> Sent: Wednesday, September 23, 2015 1:43 PM
> To: Gregory Farnum; Sage Weil
> Cc: Deneau, Tom; ceph-devel@vger.kernel.org
> Subject: Re: perf counters from a performance discrepancy
>
>
>
On Wed, Sep 23, 2015 at 9:33 AM, Deneau, Tom wrote:
> Hi all --
>
> Looking for guidance with perf counters...
> I am trying to see whether the perf counters can tell me anything about the
> following discrepancy
>
> I populate a number of 40k size objects in each of two
On Wed, Sep 23, 2015 at 1:51 PM, Deneau, Tom wrote:
>
>
>> -Original Message-
>> From: Gregory Farnum [mailto:gfar...@redhat.com]
>> So if you've got 20k objects and 5 OSDs then each OSD is getting ~4k reads
>> during this test. Which if I'm reading these properly
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