OK, thanks for the explanation. My solaris knowledge is admittedly weak. Anyway, doesn't iostat do this under Linux?
On Wed, 6 Nov 2002, steve rader wrote: > > > 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 > -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lonni J Friedman [EMAIL PROTECTED] Linux Step-by-step & TyGeMo http://netllama.ipfox.com _______________________________________________ Linux-users mailing list [EMAIL PROTECTED] Unsubscribe/Suspend/Etc -> http://www.linux-sxs.org/mailman/listinfo/linux-users
