Em Wed, Aug 05, 2015 at 03:45:27PM +, Liang, Kan escreveu:
> > hum, calling parse_callchain_record_opt from evsel hurts the python code:
> >
> > 17: Try 'import perf' in python, checking link problems :
> > --- start ---
> > test child forked, pid 25751
> > Traceback (most recent call las
> > + /* User explicitly set per-event callgraph, clear the old setting and
> reset. */
> > + if ((callgraph_buf != NULL) || (dump_size > 0)) {
> > +
> > + /* parse callgraph parameters */
> > + if (callgraph_buf != NULL) {
> > + if (!strcmp(callgraph_buf
On Tue, Aug 04, 2015 at 04:30:21AM -0400, Kan Liang wrote:
> From: Kan Liang
>
> When multiple events are sampled it may not be needed to collect
> callgraphs for all of them. The sample sites are usually nearby, and
> it's enough to collect the callgraphs on a reference event (such as
> precise
On Tue, Aug 04, 2015 at 04:30:21AM -0400, Kan Liang wrote:
SNIP
> +
> + /* User explicitly set per-event callgraph, clear the old setting and
> reset. */
> + if ((callgraph_buf != NULL) || (dump_size > 0)) {
> +
> + /* parse callgraph parameters */
> + if (callgra
From: Kan Liang
When multiple events are sampled it may not be needed to collect
callgraphs for all of them. The sample sites are usually nearby, and
it's enough to collect the callgraphs on a reference event (such as
precise cycles or precise instructions).
This patchkit adds the ability to turn
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