Hi, this list isn't for OpenStack support -- you want openstack@lists.openstack.org instead of foundat...@lists.openstack.org.
So I'm sending to that list instead. I don't know the answer but I know you'll have a better chance of getting the answer on the correct list. Anne On Fri, Oct 10, 2014 at 7:44 AM, dboyzhong <dboyzh...@163.com> wrote: > Hi. > when i put a object(1K) to swift cluster, the performance is so bad, > QPS only 16. and i found the function: "_finalize_put" in file Diskfile.py > cost too much time . > mainly caused by the fsync() inside _finalize_put operation, the fsync() > will cost 30ms when write 1KB data to disk . as a result the PUT > performance is bad. > > how can tuning the performance ? and why call fsync() function? > > > > thanks > > > > _______________________________________________ > Foundation mailing list > foundat...@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/foundation > >
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