Re: how to improve performance

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Rudi,

Am 2017-11-20 11:58, schrieb Rudi Ahlers:
...

Some more stats:

root@virt2:~# rados bench -p Data 10 seq
hints = 1
  sec Cur ops   started  finished  avg MB/s  cur MB/s last lat(s)  avg
lat(s)
    0       0         0         0         0         0           -
 0
    1      16       402       386   1543.69      1544  0.00182802
 0.0395421
    2      16       773       757   1513.71      1484  0.00243911
 0.0409455

this values are due cached osd-data on your osd-nodes.

If you flush your cache (on all osd-nodes), your reads will be much worse, because they came from the HDDs.


Udo
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com



[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux