Hi I just built a new cluster using this quickstart instructions: http://ceph.com/docs/master/start/ And here is what I am seeing: # time for i in {1..10}; do echo $i > $i.txt ; done real 0m0.081s user 0m0.000s sys 0m0.004s And if I try to repeat the same command (when files already created): # time for i in {1..10}; do echo $i > $i.txt ; done real 0m48.894s user 0m0.000s sys 0m0.004s I was very surprised and then just tried to rewrite a single file: # time echo 1 > 1.txt real 0m3.133s user 0m0.000s sys 0m0.000s BTW, I dont think it is the problem with OSD speed or network: # time sysbench --num-threads=1 --test=fileio --file-total-size=1G --file-test-mode=rndrw prepare 1073741824 bytes written in 23.52 seconds (43.54 MB/sec). Here is my ceph cluster status and verion: # ceph -w cluster d3dcacc3-89fb-4db0-9fa9-f1f6217280cb health HEALTH_OK monmap e4: 4 mons at {atl-fs10=10.44.101.70:6789/0,atl-fs11=10.44.101.91:6789/0,atl-fs12=10.44.101.92:6789/0,atl-fs9=10.44.101.69:6789/0}, election epoch 40, quorum 0,1,2,3 atl-fs9,atl-fs10,atl-fs11,atl-fs12 mdsmap e33: 1/1/1 up {0=atl-fs12=up:active}, 3 up:standby osdmap e92: 4 osds: 4 up, 4 in pgmap v8091: 192 pgs, 3 pools, 123 MB data, 1658 objects 881 GB used, 1683 GB / 2564 GB avail 192 active+clean client io 1820 B/s wr, 1 op/s # ceph -v ceph version 0.80.7 (6c0127fcb58008793d3c8b62d925bc91963672a3) All nodes connected with gigabit network. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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