ping?
On 15.04.2015 10:41, Ilya Palachev wrote:
Hi,
One more question.
Does anybody know with which options should the perf be executed so that
to collect appropriate data for the autofdo converter?
I obtain the same data for different programs, and it seems to be empty
(1600 Bytes).
They have the same md5sum for different programs:
# Data for simple program with 30 lines of code:
$ md5sum ytest.gcov
d85481c9154aa606ce4893b64fe109e7 ytest.gcov
# Data for program of 3D Delaunay triangulation construction of
1000000 points.
$ md5sum experimentCGAL_convexHullDynamic.gcov
d85481c9154aa606ce4893b64fe109e7 experimentCGAL_convexHullDynamic.gcov
We tried to collect perf data using option --call-graph fp but it does
not help: the output gcov data is still the same.
Sometimes create_gcov reports the following error:
E0421 13:10:37.125629 8732 perf_parser.cc:209] Mapped 50% of samples,
expected at least 95%
But it does not mean that there are not enough samples collected in the
profile, because 99% of samples are mapped in the case of very simple
program (with 1 function).
I try to find working case for more than a week but did not suceeded.
Can anybody show me that create_gcov works at least for one case?
--
Best regards,
Ilya Palachev
