[Gluster-users] GlusterFS performance
Nikita A Kardashin
differentlocal at gmail.com
Wed Feb 27 09:37:53 UTC 2013
I have GlusterFS installation with parameters:
- 4 servers, connected by 1Gbit/s network (760-800 Mbit/s by iperf)
- Distributed-replicated volume with 4 bricks and 2x4 redundancy formula.
- Replicated volume with 2 bricks and 2x2 formula.
I found some trouble: if I try to copy huge amount of files (94000 files,
3Gb size), this process takes terribly long time (from 20 to 40 minutes). I
perform some tests and results is:
Directly to storage (single 2TB HDD): 158MB/s
Directly to storage (RAID1 of 2 HDDs): 190MB/s
To Replicated gluster volume: 89MB/s
To Distributed-replicated gluster volume: 49MB/s
Test command is: sync && echo 3 > /proc/sys/vm/drop_caches && dd
if=/dev/zero of=gluster.test.bin bs=1G count=1
Switching direct-io on and off doesn't have effect.
Playing with glusterfs options too.
What I can do with performance?
Volume Name: nginx
Volume ID: e3306431-e01d-41f8-8b2d-86a61837b0b2
Number of Bricks: 1 x 2 = 2
Volume Name: instances
Volume ID: d32363fc-4b53-433c-87b7-ad51acfa4125
Number of Bricks: 2 x 2 = 4
Mounted with default options by Gluster-FUSE.
With best regards,
differentlocal (www.differentlocal.ru | differentlocal at gmail.com),
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