On 04/28/2015 11:31 PM, Alexandre DERUMIER wrote:
Hi,
I am trying to measure 4k RW performance on Newstore, and I am not
anywhere close to the numbers you are getting!
Could you share your ceph.conf for these test ?
I'll try also to help testing newstore with my ssd cluster.
what is used for benchmark ? rados bench ?
any command line to reproduce the same bechmark ?
Hi Alexandre,
I used fio with the librbd engine via cbt (a tool to build ceph clusters
and run benchmarks / monitoring / valgrind / etc)
You can see how fio gets invoked here:
https://github.com/ceph/cbt/blob/master/benchmark/librbdfio.py
The settings for these tests are:
benchmarks:
librbdfio:
time: 300
vol_size: 16384
mode: [write, randwrite]
op_size: [4194304, 2097152, 1048576, 524288, 262144, 131072, 65536,
32768, 16384, 8192, 4096]
concurrent_procs: [1]
iodepth: [64]
osd_ra: [4096]
cmd_path: '/home/nhm/src/fio/fio'
pool_profile: 'rbd'
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