[pve-devel] ceph firefly in pve repos

[VELARTIS Philipp Dürhammer]

HI,

I would like to know your 4k results. (to see maximal iops performance)
With the option -b 4096 (you used the standard 4M with 16 threads)
With 4MByte tests I think it should be easy to max out the network...



-----Ursprüngliche Nachricht-----
Von: pve-devel [mailto:pve-devel-bounces at pve.proxmox.com] Im Auftrag von Dietmar Maurer
Gesendet: Dienstag, 09. September 2014 08:28
An: Alexandre DERUMIER
Cc: pve-devel at pve.proxmox.com
Betreff: Re: [pve-devel] ceph firefly in pve repos

Here are some basic results with rados bench:

1.) local test Crucial MX100 SSD

OSD local disk benchmark:

# cd /var/lib/ceph/osd/ceph-0/tmdir
# dd if=/dev/zero of=here bs=1G count=1 oflag=direct
1073741824 bytes (1.1 GB) copied, 2.77576 s, 387 MB/s

# dd if=/dev/zero of=here bs=4k count=100k oflag=direct
102400+0 records in
102400+0 records out
419430400 bytes (419 MB) copied, 10.8627 s, 38.6 MB/s

102400/10.86 ==> 9429 IOPS

2.) Rados internal benchmarker (replication 3)

# rados bench -p test3 90 write --no-cleanup
Total time run:         90.138311
Total writes made:      6658
Write size:             4194304
Bandwidth (MB/sec):     295.457 

Stddev Bandwidth:       130.256
Max bandwidth (MB/sec): 640
Min bandwidth (MB/sec): 0
Average Latency:        0.216557
Stddev Latency:         0.26565
Max latency:            3.5019
Min latency:            0.035878

# rados bench -p test3 300 seq
Total time run:        19.458482
Total reads made:     6658
Read size:            4194304
Bandwidth (MB/sec):    1368.658 

Average Latency:       0.0467178
Max latency:           1.44372
Min latency:           0.006936

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