On Tue, Jun 22, 2010 at 2:53 PM, John Floren <slawmas...@gmail.com> wrote: > On Tue, Jun 15, 2010 at 10:14 PM, Gorka Guardiola <pau...@gmail.com> wrote: >> On Wed, Jun 16, 2010 at 12:07 AM, erik quanstrom <quans...@quanstro.net> >> wrote: >>>> Last time I needed something similar, I just run a modified iostats. >>> >>> how does iostats add latency? >>> >> >> hence the modified. >> > > Hi Gorka > > Do you still have your modified iostats around? I'm really not sure > about the results I get from adding sleeps in the ip code--it takes > over twice as long to copy a 10M file between my two test machines > (supposed to have 14ms RTT latency added, ping seems to indicate this) > than it does to copy from a system running a non-modified kernel to > go.cs.bell-labs.com (14ms RTT). I'd like to try running the tests with > a different latency method. > > Thanks > > John
That was meant to be off-list, but I suck at gmail apparently. John -- "With MPI, familiarity breeds contempt. Contempt and nausea. Contempt, nausea, and fear. Contempt, nausea, fear, and .." -- Ron Minnich
