ye's, now major of our database is running 10g. But to get the maximum capacity, we turned off all oracle automatic tuning/monitoring feature (statistics-level = basic) so ash is not avalible for us either. On Feb 1, 2008 11:26 PM, Finn Jorgensen <finn.oracledba@xxxxxxxxx> wrote: > If you're in 10g, could you use the ASH data for this troubleshooting? I > can't remember the exact frequency, but it's very frequent as well and > stored at this raw level for an hour. Then rolled up and stored for 7 days. > > Thanks, > Finn > > > On 2/1/08, Zhu,Chao <zhuchao@xxxxxxxxx> wrote: > > > > hi, all > > We have a homegrown script that pulls different views to log many > > different system level statistics for troubleshooting, and one of the view > > we query is v$system_event/x$kslei. As we does the pull of data every 10 > > seconds, it is very CPU consuming. The target of querying the view, is to > > give a break down of system wide wait events in the past 10 seconds (that > > is, say, db-file-sequential-wait, 1000ms, 30%,, enqueue, 300ms, 20%...) > > Is there any possible replacement for this view? We want to reduce the > > CPU usage of this script; > > > > -- > > Regards > > Zhu Chao > > www.cnoug.org > > > > -- Regards Zhu Chao www.cnoug.org