General

Profile

Mark Nelson

Issues

Projects

  • Ceph (Developer, Reporter, 09/18/2012)
  • Linux kernel client (Developer, Reporter, 09/18/2012)
  • phprados (Developer, Reporter, 09/18/2012)
  • devops (Developer, Reporter, 09/18/2012)
  • rbd (Developer, Reporter, 09/18/2012)
  • rgw (Developer, Reporter, 09/18/2012)
  • sepia (Developer, Reporter, Backporter, 09/18/2012)
  • fs (Developer, Reporter, 10/01/2012)
  • teuthology (Developer, Reporter, 01/10/2013)
  • rados-java (Developer, Reporter, 05/24/2013)
  • Calamari (Developer, Reporter, 08/27/2014)
  • Ceph-deploy (Developer, Reporter, 10/03/2014)
  • ceph-qa-suite (Developer, Reporter, 06/09/2015)
  • Tools (Developer, Reporter, Backporter, 01/26/2016)
  • Infrastructure (Developer, Reporter, Backporter, 01/26/2016)
  • ceph-cm-ansible (Developer, Reporter, Backporter, 01/26/2016)
  • paddles (Developer, Reporter, Backporter, 01/26/2016)
  • pulpito (Developer, Reporter, Backporter, 01/26/2016)
  • downburst (Developer, Reporter, Backporter, 01/28/2016)
  • ovh (Developer, Reporter, Backporter, 02/02/2016)
  • www.ceph.com (Developer, Reporter, Backporter, 08/22/2016)
  • CI (Reporter, 01/10/2017)
  • mgr (Developer, Reporter, 06/28/2017)
  • rgw-testing (Developer, Reporter, 11/01/2016)
  • RADOS (Developer, Reporter, 06/07/2017)

Activity

09/29/2017

06:08 PM RADOS Bug #21603: rocksdb is using slow crc
Kefu Chai wrote:
> i set a breakpoint in Fast_CRC32() and Slow_CRC32() when debugging ceph-mon, the breakpoint in Fa...
03:08 PM RADOS Bug #21603: rocksdb is using slow crc
Matt Benjamin wrote:
> Just randomly, is this output just from ceph-osd running under perf?
This is output from m...

09/22/2017

03:36 PM Ceph Bug #21503 (Closed): backport rocksdb compaction readahead
03:32 PM Ceph Bug #21505 (Need Review): filestore rocksdb compaction readahead
*master PR*: https://github.com/ceph/ceph/pull/17900
03:13 PM Ceph Bug #21503 (Closed): backport rocksdb compaction readahead

08/21/2017

02:58 PM Ceph Bug #21026: PR #16172 causing performance regression
After discussion with Eric, we can avoid the new code path entirely by increasing the osd_min_pg_log_entries to the s...

08/17/2017

03:26 PM Ceph Bug #21026 (Resolved): PR #16172 causing performance regression
This is most obvious during 4K random writes to NVMe backed bluestore RBD volumes, but it may be present in other tes...

07/28/2017

03:04 PM Ceph Bug #20847 (New): low performance for bluestore rbd block creation vs filestore
It appears that bluestore may be slower than filestore when creating RBD blocks (ie if pre-filling an RBD volume with...

07/23/2017

01:40 AM Ceph Bug #20748 (Resolved): segfault in OSDMap::_pg_to_up_acting_osds
log: incerta03:/tmp/cbt/ceph/log/osd.10.log
core: incerta03:/tmp/cbt/ceph/core.tp_osd_tp.17701.incerta03.front.sepia...

06/07/2017

04:59 PM Ceph Wiki edit: CDM_01-MAR-2017 (#9)

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