> > Net Llama! wrote: > > Errr...what is % io wait? > From: Jim Bonnet > I believe he is referring %wio which is the percentage of time the cpu > is idle with processes waiting on I/O..
right... imho, it's a _critical_ statistic for system performance tuning... if there's, a, ah, "significant" amount of io wait on a given system, then it needs more disk bandwidth. at least a half dozen times, i've taken doggy ibm and sun systems with something like > 10% io wait and made 'em snappy by re-architecting their disks. interesting enough, often this resulted in increased swapping/paging and thus the need for more real memory. i was thought that the rule of thumb for performance tuning is: "increasing resources down hill with a tail wind probably won't make things worse." steve - - - _______________________________________________ Linux-users mailing list [EMAIL PROTECTED] Unsubscribe/Suspend/Etc -> http://www.linux-sxs.org/mailman/listinfo/linux-users
