Yes, if you are using do_autogen , use -J option. If you are using config files directly , use --with-jemalloc -----Original Message----- From: Luis Periquito [mailto:periquito@xxxxxxxxx] Sent: Monday, May 23, 2016 7:44 AM To: Somnath Roy Cc: Ceph Users Subject: Re: using jemalloc in trusty Thanks Somnath, I expected that much. But given the hint in the config files do you know if they are built to use jemalloc? it seems not... On Mon, May 23, 2016 at 3:34 PM, Somnath Roy <Somnath.Roy@xxxxxxxxxxx> wrote: > You need to build ceph code base to use jemalloc for OSDs..LD_PRELOAD won't work.. > > Thanks & regards > Somnath > > -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf > Of Luis Periquito > Sent: Monday, May 23, 2016 7:30 AM > To: Ceph Users > Subject: using jemalloc in trusty > > I've been running some tests with jewel, and wanted to enable jemalloc. > I noticed that the new jewel release now loads properly /etc/default/ceph and has an option to use jemalloc. > > I've installed jemalloc, enabled the LD_PRELOAD option, however doing some tests it seems that it's still using tcmalloc: I still see the "tcmalloc::CentralFreeList::FetchFromSpans()" and it's accompanying lines in perf top. > > Also from a lsof I can see the tcmalloc libraries being used, but not the jemalloc ones... > > Does anyone know what I'm doing wrong? I'm using the standard binaries from the repo 10.2.1 and ubuntu trusty with kernel 3.13.0-52-generic. > > thanks, > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > PLEASE NOTE: The information contained in this electronic mail message is intended only for the use of the designated recipient(s) named above. If the reader of this message is not the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify the sender by telephone or e-mail (as shown above) immediately and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies). _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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