Re: very high "mt yield 0" on IDS 9.40

rvb wrote: > looking at the wait statistics of my IDS 9.40 I find an ever > increasing value for the "MT yield 0" condition. > > Up to my knowledge this means that threads are doing busy waits for > other event's Looks like it. (snip) > How can I try to track down the reason for this behaviour ? That's difficult. Can you give us some more information? - scheduler statistics, number of vps from onstat -g glo - Do the threads hit use shm connections (notorious for yield 0)? - Any clues about what these threads are doing special? - What OS and what exact online version? Would it be possible to attach a debugger to oninit (which is a risk in a productive environment)? Michael