@Vahric, FYI, if you use directio, instead of sync (like a database is is
default configured for), you will just be using the RBD cache. Look at the
latency on your numbers. It is lower than is possible for a packet to
traverse the network. You'll need to use sync=1 if you want to see what the
perf
There is quite some information missing: how much RAM do the nodes
have? What SSDs? What Kernel (there has been complaints of a
performance regression on 4.4+).
You also never state how you have configured the OSDs, their journals,
filestore or bluestore, etc...
You never specify how you're acces
Hello All ,
For a long time we are testing Ceph from Firefly to Kraken , tried to
optimise many things which are very very common I guess like test tcmalloc
version 2.1 , 2,4 , jemalloc , setting debugs 0/0 , op_tracker and such
others and I believe with out hardware we almost reach to end of the
