Re: Probable memory leak in Hammer write path ?

2015-07-01 Thread Alexandre DERUMIER
"ceph-devel" Envoyé: Jeudi 2 Juillet 2015 05:38:24 Objet: RE: Probable memory leak in Hammer write path ? Hi, I think I am eventually able to figure out what is happening.. First, here is the step to reproduce it in any kernel (not specific to 3.16/3.18 as I said earlier) 1. In a SSD c

RE: Probable memory leak in Hammer write path ?

2015-07-01 Thread Somnath Roy
allocator and moving to jemalloc. Thanks Greg for asking me to relook at tcmalloc otherwise I was kind of out of option :-).. Regards Somnath -Original Message- From: Somnath Roy Sent: Wednesday, July 01, 2015 4:58 PM To: 'Gregory Farnum' Cc: ceph-devel@vger.kernel.org Subject: RE

RE: Probable memory leak in Hammer write path ?

2015-07-01 Thread Somnath Roy
y Cc: ceph-devel@vger.kernel.org Subject: Re: Probable memory leak in Hammer write path ? On Mon, Jun 29, 2015 at 4:39 PM, Somnath Roy wrote: > Greg, > Updating to the new kernel updating the gcc version too. Recent kernel is > changing tcmalloc version too, but, 3.16 has old tcmal

Re: Probable memory leak in Hammer write path ?

2015-07-01 Thread Gregory Farnum
On Mon, Jun 29, 2015 at 4:39 PM, Somnath Roy wrote: > Greg, > Updating to the new kernel updating the gcc version too. Recent kernel is > changing tcmalloc version too, but, 3.16 has old tcmalloc but still > exhibiting the issue. > Yes, the behavior is very confusing and compiler is main variabl

RE: Probable memory leak in Hammer write path ?

2015-06-29 Thread Somnath Roy
oing is to install ceph from ceph.com and see the behavior. Thanks & Regards Somnath -Original Message- From: Gregory Farnum [mailto:g...@gregs42.com] Sent: Monday, June 29, 2015 3:53 AM To: Somnath Roy Cc: ceph-devel@vger.kernel.org Subject: Re: Probable memory leak in Hammer wri

Re: Probable memory leak in Hammer write path ?

2015-06-29 Thread Gregory Farnum
PM > To: ceph-devel@vger.kernel.org > Subject: Probable memory leak in Hammer write path ? > > Hi, > I am chasing a substantial memory leak in latest Hammer code base in the > write path since yesterday and wanted to know if anybody else is also > observing this or not. This is as

RE: Probable memory leak in Hammer write path ?

2015-06-28 Thread Somnath Roy
evel@vger.kernel.org Subject: Probable memory leak in Hammer write path ? Hi, I am chasing a substantial memory leak in latest Hammer code base in the write path since yesterday and wanted to know if anybody else is also observing this or not. This is as simple as running a fio-rbd random_write workload i

Probable memory leak in Hammer write path ?

2015-06-27 Thread Somnath Roy
Hi, I am chasing a substantial memory leak in latest Hammer code base in the write path since yesterday and wanted to know if anybody else is also observing this or not. This is as simple as running a fio-rbd random_write workload in my single OSD server with say block size 16K and num_jobs = 8.