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2011 May 12
1
Slow reading speed over RDMA
...d I can't understand some of the
behavior I'm getting with gluster.
The test is using a volume with 12 stripped bricks (each brick is an HD),
with no replication, via RDMA. I'm doing random readings of 4GByte files
with the FIO tool.
Gluster reading speed is of 150-160MByte/s and 110-120MByte/s per client if
I connect with two clients.
However, on the same machine, I have a similar lustre setup with a constant
400MByte/s throughput, for the same tests, with the same amount of disks
going through the same RAID controller. Both tests were ran at different
times.
As comparison, for the...