Hi. I have two machines one running 4.6, the other running a recent snapshot of current. tcpbench reports maximum throughput of 275 Mbit - that's around 34 MB/s between them over a gig-E link. What should one expect with an el-cheapo gig-e switch and 'em' Intel NIC and a msk NIC? Is that reasonable or too slow?
The 4.6 machine has a softraid mirror and can read off it at around 55 MB/s as shown by 'dd', and the -current machine has an eSATA enclosure mounted async for the purpose of quickly backing up to it, that I can write to at around 45 MB/s as shown by 'dd'. However copying over the network to it - through NFS I can only get around 15 MB/s. Where is the bottleneck? How to fix?? Copying with rsync over ssh is even slower due to rsync and ssh eating quite a bit of CPU - but that's to be expected. Thanks a bunch.
