On 31 January 2013 22:01, Philipp Kern <[email protected]> wrote: > even quite old Intel boxes manage to saturate 1 GE easily. You're > copying stuff into the send buffer and ring a bell. > > Nowadays it doesn't seem hard to do 10 GE with a Linux box, especially if > you've got HW assist on the network card. The z network adapter is a full > fledged POWER board, it can't be that hard... ;-)
I still expect that downloading 160G will end up being limited by his disk I/O or z/OS. And for FTP it still could be the buffer size thing. But I sit corrected because I overlooked that he's going to the PC rather than Linux on z/VM. Did some quick tests at home to see the PC has a much lower CPU cost per MB/s. I will have to get access to a suitable configuration to understand where my CPU cycles go when doing TCP/IP with Linux on z/VM. Thanks, Rob ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
