Messages in this thread | | | Date | Wed, 25 Apr 2001 11:36:03 -0400 | From | Jeremy Jackson <> | Subject | Re: Event tools, do they exist |
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I think all of this has been done... you should check out the Linux Trace Toolkit.
george anzinger wrote:
> This is an attempt to look in the wheel locker. > > I need a simple event sub system for use in the kernel. I envision at > least two types of events: the history event and the timing event. > > The timing event would keep track of start/stop times by class. If, for > example, I wanted to know how much time the kernel spends doing the > recalc in schedule() I would put and event start in front of it and an > end at the other end. The sub system would note the first event time > and the cumulative time between all starts and stops on the same event. > When reported by /proc/ it would give the total event time, the elapsed > time and the % of processor time for each of the possibly several > classes. > > The history event would record each events time, location, data1, > data2. It would keep N of these (the last N) and report M (M=<N) via > /proc/. This list should also be kept in a format that a simple > debugger can easily examine. > > Somebody must have written these routines and have them in their > library. Sure would help if I could have a peek.
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