subject:"\[ceph\-users\] CephFS\: costly MDS cache misses\?"

Re: [ceph-users] CephFS: costly MDS cache misses?

2017-11-30 Thread Yan, Zheng

On Thu, Nov 30, 2017 at 2:08 AM, Jens-U. Mozdzen wrote: > Hi *, > > while tracking down a different performance issue with CephFS (creating tar > balls from CephFS-based directories takes multiple times as long as when > backing up the same data from local disks, i.e. 56 hours

[ceph-users] CephFS: costly MDS cache misses?

2017-11-29 Thread Jens-U. Mozdzen

Hi *, while tracking down a different performance issue with CephFS (creating tar balls from CephFS-based directories takes multiple times as long as when backing up the same data from local disks, i.e. 56 hours instead of 7), we had a look at CephFS performance related to the size of