Hello, Mindaugas Riauba wrote: > By the way did you try to test random read performance and latency > of XIV? Looking into architecture (multiple hosts with 7200rpm SATA > drives interconnected via 1Gb Ethernet) it should not perform well in > this area.
Yes: When I test with fio (6 parallel tasks, aio, direct I/O, depth 256, 70% reads), the XIV beats the local RAID by a _wide_ margin. But we do have applications which don't seem to be able to work with parallel I/O. I know that the XIV's focus is on parallel I/O, but still: I'm wondering _where_ in the system the bottleneck appears (knowing that I can get fine throughput if I run (e.g.) six dd/cat processes in parallel). -- Regards, Troels Arvin <[email protected]> http://troels.arvin.dk/ _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
