Hi there, I'm new to the GlusterFS project - looks superb and very promising! I'm running into massive performance issues, however. I'm using the stock default configuration that GlusterFS put in place when I created the volume - it seems to reference io-cache, quick-read, etc in the volume files, which makes me think it's already pulling in these optimizations. This is a replicate setup - I've tried with 2, 3, and 4 nodes, and performance remains awful on any of them - network communication seems fine, with average speeds at 9-15MB/sec. # gluster --version glusterfs 3.1.1 built on Nov 29 2010 10:07:45 Repository revision: v3.1.1 With no other activity on the filesystems on any of my nodes: # time ls -al total 10072 drwx--x--x 10 root root 4096 Dec 3 16:50 ./ drwxr-xr-x 3 root root 4096 Dec 3 14:19 ../ -rw-r--r-- 1 root root 10240000 Dec 3 16:49 testfile real 0m1.347s user 0m0.000s sys 0m0.000s # time cp testfile testfile2 real 0m11.254s user 0m0.000s sys 0m0.000s # time diff testfile* real 0m5.792s user 0m0.004s sys 0m0.000s Read speed is marginally faster than write speed, but still horrible - e.g. if Apache is serving content off of a glusterfs mountpoint, it times out 95% of the time before it can read the files. I'm using mount -t glusterfs, with default mount options. Can anyone point me in the right direction to getting things nice and speedy here? I'd appreciate any feedback or help! I can provide any configuration files necessary, or even root login access to the box(es) via private e-mail if you want to poke around (these are just test boxes presently). Thanks, --Chris chris.michaelis at uk2group.com
