Re: [ceph-users] RBD performance test (write) problem

Hi all, Have any comments about 1) or 2) ? Thanks!!! Hi Mark, Sorry, reply too late, because I didn't receive this mail so missed this message in the several days... http://www.mail-archive.com/ceph-users@lists.ceph.com/msg00624.html Your advice are very very helpful to me !!! thanks :) I

Re: [ceph-users] RBD performance test (write) problem

Hi Mark, Sorry, reply too late, because I didn't receive this mail so missed this message in the several days... http://www.mail-archive.com/ceph-users@lists.ceph.com/msg00624.html Your advice are very very helpful to me !!! thanks :) I have done the following test and have some questions 1)

Re: [ceph-users] RBD performance test (write) problem

Hi Xiaxi, Thanks your answer !! FIO test: 4MB Sequential write (numjobs=1) : 203 MB/s (close to rados bench write) 4MB Random write (numjobs=8): 145 MB/s but I still have some questions of write performance According to this message: http://www.mail-archive.com/ceph-devel@vger.kernel.org/msg068

Re: [ceph-users] RBD performance test (write) problem

On 04/06/2013 12:11 AM, kelvin_hu...@wiwynn.com wrote: Hi all, Hi Kelvin! I have some problem after my RBD performance test Setup: Linux kernel: 3.6.11 OS: Ubuntu 12.04 RAID card: LSI MegaRAID SAS 9260-4i For every HDD: RAID0, Write Policy: Write Back with BBU, Read Policy: ReadAhead, I

[ceph-users] RBD performance test (write) problem

Hi all, I have some problem after my RBD performance test Setup: Linux kernel: 3.6.11 OS: Ubuntu 12.04 RAID card: LSI MegaRAID SAS 9260-4i For every HDD: RAID0, Write Policy: Write Back with BBU, Read Policy: ReadAhead, IO Policy: Direct Storage server number : 1 Storage server : 8 * HDD (each