On Mon, 4 Jan 2016, Philip Mucci wrote:
> Right. The default however is currently to exclude_guest = 1, which is
> the problem. PAPI did not seem to rectify that setting…
just a further comment, I complained to the kernel people about this mess
again but there doesn't seem to be much that can be done about it.
The perf tool when it gets an EINVAL actually tries rolling back flags one
by one to handle this issue (see perf_missing_features in
perf/util/evesel.c). I'm not sure if it's worth moving something
similar into PAPI or libpfm4.
Vince
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