Re: [ceph-users] Benchmarking

2018-06-19 Thread David Byte
behalf of Nino Bosteels Date: Tuesday, June 19, 2018 at 7:08 AM To: "ceph-users@lists.ceph.com" Subject: [ceph-users] Benchmarking Hi, Anyone got tips as to how to best benchmark a Ceph blockdevice (RBD)? I’ve currently found the more traditional ways (dd, iostat, bonnie++, phoronix tes

[ceph-users] Benchmarking

2018-06-19 Thread Nino Bosteels
Hi, Anyone got tips as to how to best benchmark a Ceph blockdevice (RBD)? I've currently found the more traditional ways (dd, iostat, bonnie++, phoronix test suite) and fio which actually supports the rbd-engine. Though there's not a lot of information about it to be found online (contrary to

[ceph-users] benchmarking ceph mds

2014-06-06 Thread Qing Zheng
Hi, I'm not sure if this question makes sense, but ... Will perform a client-side rate control (limiting the number of requests sent per second) help in avoiding a MDS crash? I'm currently trying to get a baseline metadata performance of cephfs with multiple *active* mds servers and directory

Re: [ceph-users] benchmarking ceph mds

2014-06-06 Thread Yan, Zheng
On Sat, Jun 7, 2014 at 9:02 AM, Qing Zheng zhe...@cs.cmu.edu wrote: Hi, I'm not sure if this question makes sense, but ... Will perform a client-side rate control (limiting the number of requests sent per second) help in avoiding a MDS crash? I'm currently trying to get a baseline metadata