On 28 Jun 2013, at 08:41, 华仔 wrote: > write speed: wget http://remote server ip/2GB.file , we get a write speed > at an average speed of 6MB/s.(far behind expected) > (we must get something wrong there, we would appreciate a lot if any help > comes from you. we think the problems comes from the kvm emulator, but we are > not sure, can you give us some advice to improve our vm's disk performance in > the aspect of writing speed?)
Are you using cache=writeback on your kvm command line? What about librbd caching? What versions of kvm & ceph? -- Alex Bligh _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
