On Sunday 16 April 2006 09:06, Nick Piggin wrote: > I still don't understand what the justification is for slowing down > this critical bit of infrastructure for something that is only a > problem in the -rt patchset, and even then only a problem when tracing > is enabled. There are actually problems outside -rt. e.g. the Xen kernel was running into a near overflow and as more and more code is using per cpu variables others might too. I'm confident the problem can be solved without adding more variables though - e.g. in the way rusty proposed. -Andi
