Re: [ceph-users] rbd performance problem on kernel 3.13.6 and 3.18.11

2015-04-14 Thread Ilya Dryomov
On Tue, Apr 14, 2015 at 6:24 AM, yangruifeng.09...@h3c.com wrote: > Hi all！ > > > > I am testing rbd performance based on kernel rbd dirver, when I compared the > result of the kernel 3.13.6 with 3.18.11, my head gets so confused. > > > > look at the result, down by a third. > > > > 3.13.6 IOPS >

[ceph-users] rbd performance problem on kernel 3.13.6 and 3.18.11

2015-04-13 Thread yangruifeng.09...@h3c.com
Hi all！ I am testing rbd performance based on kernel rbd dirver, when I compared the result of the kernel 3.13.6 with 3.18.11, my head gets so confused. look at the result, down by a third. 3.13.6 IOPS 3.18.11 IOPS 4KB seq read 97169 23714 4KB seq write 10110 3177 4KB rand read 7589