Cc: ceph-devel@vger.kernel.org
Subject: Re: Performance variation across RBD clients on different pools in all
SSD setup - tcmalloc issue
On Wed, 3 Dec 2014, Chaitanya Huilgol wrote:
> (2)TCmalloc - Client -2 (note significant increase in TCmalloc internal
> free to central list code
ation across RBD clients on different pools in all
SSD setup - tcmalloc issue
On 12/03/2014 05:41 AM, Chaitanya Huilgol wrote:
> Hi All,
>
> We are seeing large read performance variations across RBD clients on
> different pools. Below is the summary of our findings
>
> - Fi
On Wed, 3 Dec 2014, Chaitanya Huilgol wrote:
> (2)TCmalloc - Client -2 (note significant increase in TCmalloc internal
> free to central list code paths)
>
> 14.75% libtcmalloc.so.4.1.2 [.]
> tcmalloc::CentralFreeList::FetchFromSpans()
> 7.46% libtcmalloc.so.4.1.2 [.]
> tcmalloc
14 6:24 PM
To: Chaitanya Huilgol
Cc: ceph-devel@vger.kernel.org
Subject: Re: Performance variation across RBD clients on different pools in all
SSD setup - tcmalloc issue
On Wed, Dec 3, 2014 at 12:41 PM, Chaitanya Huilgol
wrote:
> Hi All,
>
> We are seeing large read performance va
On 12/03/2014 05:41 AM, Chaitanya Huilgol wrote:
Hi All,
We are seeing large read performance variations across RBD clients on different
pools. Below is the summary of our findings
- First client starting I/O after a cluster restart (ceph start/stop on all OSD
nodes) gets the best performan
On Wed, Dec 3, 2014 at 12:41 PM, Chaitanya Huilgol
wrote:
> Hi All,
>
> We are seeing large read performance variations across RBD clients on
> different pools. Below is the summary of our findings
>
> - First client starting I/O after a cluster restart (ceph start/stop on all
> OSD nodes) gets
