On Wed, 25 Jun 2014 17:17:02 -0700 Gregory Farnum wrote: > Sorry we let this drop; we've all been busy traveling and things. > > There have been a lot of changes to librados between Dumpling and > Firefly, but we have no idea what would have made it slower. Can you > provide more details about how you were running these tests? This sounds a lot like what I saw when going from Emperor to Firefly, see my post from a month ago: https://www.mail-archive.com/ceph-users@xxxxxxxxxxxxxx/msg10095.html Though the decrease in IOPS is even higher. Regards, Christian > -Greg > Software Engineer #42 @ http://inktank.com | http://ceph.com > > > On Fri, Jun 13, 2014 at 7:59 AM, Stefan Priebe <s.priebe@xxxxxxxxxxxx> > wrote: > > Hi, > > > > while testint firefly i cam into the sitation where i had a client > > where the latest dumpling packages where installed (0.67.9). > > > > As my pool has hashppool false and the tunables are set to default it > > can talk to my firefly ceph sotrage. > > > > For random 4k writes using fio with librbd and 32 jobs and an iodepth > > of 32. > > > > I get these results: > > > > librbd / librados2 from dumpling: > > write: io=3020.9MB, bw=103083KB/s, iops=25770, runt= 30008msec > > WRITE: io=3020.9MB, aggrb=103082KB/s, minb=103082KB/s, > > maxb=103082KB/s, mint=30008msec, maxt=30008msec > > > > librbd / librados2 from firefly: > > write: io=7344.3MB, bw=83537KB/s, iops=20884, runt= 90026msec > > WRITE: io=7344.3MB, aggrb=83537KB/s, minb=83537KB/s, maxb=83537KB/s, > > mint=90026msec, maxt=90026msec > > > > Stefan > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Fusion Communications http://www.gol.com/ -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
