On Sat, Apr 25, 2015 at 11:21 PM, François Lafont <flafdivers@xxxxxxx> wrote: > Hi, > > Gregory Farnum wrote: > >> The MDS will run in 1GB, but the more RAM it has the more of the metadata >> you can cache in memory. The faster single-threaded performance your CPU >> has, the more metadata IOPS you'll get. We haven't done much work >> characterizing it, though. > > Ok, thanks for the answer. So, if I understand well, in any case the mds > server will use just one core of the CPU, so that it's useless to have > several cores. Is it correct? There is a big lock in MDS. MDS can only use about two cores. > > -- > François Lafont > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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