perf record and multiple events

[Eric B Munson]

While testing perf record I found that when multiple events are specified
on the command line, i.e. perf record -e dTLB-misses -e cache-misses,
the are lumped into a single category on output from perf report. The
same event specification gives two event categories when using perf stat.
Is this working as expected or should I see seperate entries in the report
for each event?

--
Eric B Munson
IBM Linux Technology Center
ebmu...@us.ibm.com

[Peter Zijlstra]

On Wed, 2010-02-17 at 17:38 +0000, Eric B Munson wrote:
> While testing perf record I found that when multiple events are specified
> on the command line, i.e. perf record -e dTLB-misses -e cache-misses,
> the are lumped into a single category on output from perf report. The
> same event specification gives two event categories when using perf stat.
> Is this working as expected or should I see seperate entries in the report
> for each event?

The tools currently lack support for this, but patches are welcome.

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[Eric B Munson]

On Thu, 18 Feb 2010, Peter Zijlstra wrote:

> On Wed, 2010-02-17 at 17:38 +0000, Eric B Munson wrote:
> > While testing perf record I found that when multiple events are specified
> > on the command line, i.e. perf record -e dTLB-misses -e cache-misses,
> > the are lumped into a single category on output from perf report. The
> > same event specification gives two event categories when using perf stat.
> > Is this working as expected or should I see seperate entries in the report
> > for each event?
>
> The tools currently lack support for this, but patches are welcome.
>

Thanks, I'll start looking into it.