On Jan 12, 2010, at 10:27 AM, bank kus wrote: >> I think if you look at the majority of performance >> problems reported on this >> forum, they are latency and not bandwidth bound. > > __latency__ of reads in a highly contested system (lots of reads from > different processes ahead of you) > OR > the speed of light case (heres a read queues are empty fetch me the data if > not from cache then disk, theres no contention). > > The former will improve for latency with fair queuing while SOL its true will > incur a certain overhead yes. Again I would be interested to see if there > have been mail threads / discussions around _intentionally_ not providing > fair queuing in Solaris for perf reasons or if this something thats not been > thought of so far.
Good question. I suggest you look at the resource management community. http://hub.opensolaris.org/bin/view/Project+rm/ -- richard
