Messages in this thread | | | Subject | Re: [patch 0/3] [Announcement] Performance Counters for Linux | From | Peter Zijlstra <> | Date | Fri, 05 Dec 2008 09:03:36 +0100 |
| |
On Fri, 2008-12-05 at 18:57 +1100, Paul Mackerras wrote: > Peter Zijlstra writes: > > > So, while most people would not consider two consecutive read() ops to > > be close or near the same time, due to preemption and such, that is > > taken away by the fact that the counters are task local time based - so > > preemption doesn't affect thing. Right? > > I'm sorry, I don't follow the argument here. What do you mean by > "task local time based"?
time only flows when the task is running.
| |