Hi, I am testing some configurations I have laying around here at work while waiting for our new hardware to arrive. I set up one system, a 1U with 2GB of memory and a Xeon (speed not really relevant to this) and GigE as a target and set up a virtual disk via iSCSI. Then on another system, an old DELL, I set up the initiator, and ran: dd if=/dev/zero of=/dev/sda1 bs=1024 count=1000000 and I got a throughput of 10.5-10.8MB/a while consuming around 10-12% of the CPU on the target (shown via top). That number looked suspiciously like 100BaseT numbers to me, and lspci told me it was. So, I shifted to another system with GigE and did the same tests. This time around, tgtd on the target machine was getting 25-30% with spikes up to 99% but the throughput stayed around 10.2MB/s. I am going to pull down the kernel profiling tool to see what is going on, but I wonder if anyone else knows off the top of their heads? -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.berlios.de/pipermail/stgt-devel/attachments/20080702/462b0ec0/attachment.html |