On Wed, Apr 9, 2014 at 3:47 PM, Florent B <flor...@coppint.com> wrote: > Hi, > > I'm trying again and my system has now a load average of 3.15. > > I did a perf report, 91,42% of CPU time is used by : > > + 91.42% 63080 swapper [kernel.kallsyms] [k] > native_safe_halt >
could you give -g (Enables call-graph recording) to perf record and try again. Regards Yan, Zheng > My system has 2 vCore, and does not use all 4 GB of RAM... > > When I do a "top", I can see "kworker/0:0" always first... > > Debian 7 with 3.13 kernel backport. > > Do you have an idea of what is consuming so far ? > > Thank you :) > > On 04/04/2014 04:50 PM, Yan, Zheng wrote: >> On Fri, Apr 4, 2014 at 6:33 PM, Florent B <flor...@coppint.com> wrote: >>> Hi all, >>> >>> My machines are all running Debian Wheezy. >>> >>> After a few days using kernel driver to mount my Ceph pools (with backports >>> 3.13 kernel), I'm now switching to FUSE because of very high CPU usage with >>> kernel driver (load average > 35). >>> >> I'm curious which code uses CPU time. could you use perf to get a profile >> >> Regards >> Yan, Zheng >> > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
