Are you saturating your network bandwidth? That's what it sounds like. :) -Greg On Monday, July 14, 2014, baijiaruo at 126.com <baijiaruo at 126.com> wrote: > hi, everyone! > > I test RGW get obj ops, when I use 100 threads get one and the same > object , I find that performance is very good, meadResponseTime is 0.1s. > But when I use 150 threads get one and the same object, performace is > very bad, meadResponseTime is 1s. > > and I observe the osd log and rgw log, > rgw log: > 2014-07-15 10:36:42.999719 7f45596fb700 1 -- 10.0.1.61:0/1022376 --> > 10.0.0.21:6835/24201 -- osd_op(client.6167.0:22721 default.5632.8_ws1411.jpg > [getxattrs,stat,read 0~524288] 4.5210f70b ack+read e657) > 2014-07-15 10:36:44.064720 7f467efdd700 1 -- 10.0.1.61:0/1022376 <== > osd.7 10.0.0.21:6835/24201 22210 ==== osd_op_reply(22721 > > osd log: > 10:36:43.001895 7f6cdb24c700 1 -- 10.0.0.21:6835/24201 <== client.6167 > 10.0.1.61:0/1022376 22436 ==== osd_op(client.6167.0:22721 default.5632.8_ws1411.jpg > > 2014-07-15 10:36:43.031762 7f6cbf01f700 1 -- 10.0.0.21:6835/24201 --> > 10.0.1.61:0/1022376 -- osd_op_reply(22721 default.5632.8_ws1411.jpg > > so I think the problem is not happened in the osd, why osd send op replay > in 10:36:43.031762 , but rgw receive in 10:36:44.064720 ? > > > ------------------------------ > baijiaruo at 126.com <javascript:_e(%7B%7D,'cvml','baijiaruo at 126.com');> > -- Software Engineer #42 @ http://inktank.com | http://ceph.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140715/ee342f7a/attachment.htm>
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