Kirsten, On Tue, Mar 15, 2011 at 4:40 PM, Kristen Walcott-Justice <kr...@cs.virginia.edu> wrote: > Hi, > > I was looking at the code for perf_event_refresh in kernel/perf_event.c and > saw that it refreshes the counter, but it does not reload the period or > anything else that may have changed. I know that this bug was noted in the > past, but I never saw a fix for it. Is there a simple solution? > I think the goal of IOC_REFRESH is not to reload the period but simply to adjust the number of events before the next notifications. IOC_PERIOD is the command to update the period and that's the one that does not update the current period but instead defers until next. I started looking into how to fix this.
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