[ceph-users] Degradation of write-performance after upgrading to Octopus

2020-06-04 Thread Thomas Gradisnik
We have deployed a small test cluster consisting of three nodes. Each node is running a mon/mgr and two osds (Samsung PM983 3,84TB NVMe split into two partitions), so six osds in total. We started with Ceph 14.2.7 some weeks ago (upgraded to 14.2.9 later) and ran different tests using fio agains

[ceph-users] Re: Degradation of write-performance after upgrading to Octopus

2020-07-20 Thread Thomas Gradisnik
Hi Mark and others, last week we have finally been able to solve the problem. We are using Gentoo on our test cluster and as it turned out the official Ebuilds are not setting CMAKE_BUILD_TYPE=RelWithDebInfo, which alone caused the performance degradation we have been seeing after upgrading to