> Or, is the concern more about trying to time-slice the results in a
> fairly granular way and expecting accurate results then?
Usually the later. It's especially important for divisions. You want
both divisor and dividend to be in the same time slice, otherwise
the result usually doesn't make a
On Thu, May 07, 2020 at 10:43:43PM -0700, Ian Rogers wrote:
> On Thu, May 7, 2020 at 2:47 PM Andi Kleen wrote:
> >
> > > > - without this change events within a metric may get scheduled
> > > > together, after they may appear as part of a larger group and be
> > > > multiplexed at different ti
> > - without this change events within a metric may get scheduled
> > together, after they may appear as part of a larger group and be
> > multiplexed at different times, lowering accuracy - however, less
> > multiplexing may compensate for this.
>
> I agree the heuristic in this patch set
On Thu, May 07, 2020 at 01:14:29AM -0700, Ian Rogers wrote:
> Metric groups contain metrics. Metrics create groups of events to
> ideally be scheduled together. Often metrics refer to the same events,
> for example, a cache hit and cache miss rate. Using separate event
> groups means these metrics
On Thu, May 07, 2020 at 01:14:29AM -0700, Ian Rogers wrote:
> Metric groups contain metrics. Metrics create groups of events to
> ideally be scheduled together. Often metrics refer to the same events,
> for example, a cache hit and cache miss rate. Using separate event
> groups means these metrics
