Hi, Recent threads on on the ML revealed that the Ceph MDS can benefit from using a fast single threaded CPU.
Some tasks inside the MDS are still single-threaded operations, so the faster the code executes the better. Keeping that in mind I started to look at some benchmarks: http://cpubenchmark.net/singleThread.html The fastest server CPU there is the "Intel Xeon E3-1281 v3 @ 3.70GHz". This is a 4-core CPU, however, it can only address 32GB of memory. Which is not much in most situations. The "Intel Xeon E5-1650 v4 @ 3.60GHz" however would also be a good candidate. It can address up to 1.5TB of DDR4 memory. The 6-cores should also be sufficient. Is this a good assumption to make? - E5-1650 v4 @ 3.60GHz - 256GB of memory - Disable all CPU powersaving (c-state to 0) Does this make any sense for a Ceph MDS? Wido _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
