On 06/29/2010 05:13 AM, Nick Birkett wrote: > Im using IOZONE. Each server has 16Gbytes mem and I'm running 32Gbyte > files with iozone. > The Glusterfs file system is 133Gbytes in total. So yes it could be > cache effect since the > files are divided by 8 on a stripe. The local storage on each server is > just a single local disk > and quite slow (100Mbytes/s read/write). > The network is DDR Infiniband so a bit overkill for the slow disks. OK, so it's not the network. If you're doing large (e.g. 1MB) writes on the client, with the io-threads translator and multiple iozone threads, it seems like you should be able to get much better than 100MB/s for write. I think seeing your volfiles - especially on the client - and iozone command would help to identify what that's not the case.
