Hi,
I am seeing write performance hit with small files (60K) using radosgw. The radosgw is configured to run with 600 threads. Here is the write speed I get with file sizes of 60K
# sudo ceph -s
cluster e445e46e-4d84-4606-9923-16fff64446dc
health HEALTH_OK
monmap e1: 1 mons at {osd187=13.24.0.7:6789/0}, election epoch 1, quorum 0 osd187
osdmap e205: 28 osds: 22 up, 22 in
pgmap v17007: 1078 pgs, 9 pools, 154 GB data, 653 kobjects
292 GB used, 8709 GB / 9002 GB avail
1078 active+clean
client io 1117 kB/s rd, 2878 kB/s wr, 2513 op/s
#
If I run the same script with larger file sizes(1MB-3MB), I get a better write speed.
# sudo ceph -s
cluster e445e46e-4d84-4606-9923-16fff64446dc
health HEALTH_OK
monmap e1: 1 mons at {osd187=13.24.0.79:6789/0}, election epoch 1, quorum 0 osd187
osdmap e205: 28 osds: 22 up, 22 in
pgmap v16883: 1078 pgs, 9 pools, 125 GB data, 140 kobjects
192 GB used, 8809 GB / 9002 GB avail
1078 active+clean
client io 105 MB/s wr, 1839 op/s
#
My cluster has 2 OSD hosts running total of 20 osd daemons, 1 mon and 1 radosgw hosts. Is the bottleneck coming from the single radosgw process? If so, is it possible to run radosgw in multi process mode?
Regards
Srikanth
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