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Re: gprof reporting all 0.0 seconds
On Sat, Feb 09, 2008 at 02:08:07PM -0500, Yang Zhang wrote:
> michael wrote:
>> Yang Zhang wrote:
>>> Retrying.
>>>
>>> Yang Zhang wrote:
>>>> The output of gprof for my C++ program has no entries that contain non-0
>>>> time:
>>>>
>>>> % cumulative self self total
>>>> time seconds seconds calls Ts/call Ts/call name
>>>> 0.00 0.00 0.00 20347515 0.00 0.00 __gnu_cxx::__nor..
>>>> 0.00 0.00 0.00 18191192 0.00 0.00 __gnu_cxx::__nor..
>>>> 0.00 0.00 0.00 15330884 0.00 0.00 std::strchr(char..
>>>> 0.00 0.00 0.00 11405520 0.00 0.00 __gnu_cxx::__nor..
>>>> 0.00 0.00 0.00 10668361 0.00 0.00 __gnu_cxx::__stl..
>>>> 0.00 0.00 0.00 10173756 0.00 0.00 __gnu_cxx::__nor..
>>>> ...
>>>>
>>>> What's going wrong? The source (it's a simple 1-file program) and
>>>> Makefile are available at:
>>>>
>>>> http://assorted.svn.sourceforge.net/viewvc/assorted/hash-join/trunk/src/
>>>>
>>>> In particular, the build command is:
>>>>
>>>> g++ -Wall -lprofiler -lpthread -o hashjoin-pg hashjoin.cc -g -pg
>>>>
>>>> Thanks in advance for any help.
>>>
>> Compile it without any optimization and retry.
>>
>> Michael
>>
>
> I tried just now. That didn't change anything, sadly.
How can I reproduce it? I don't have -lprofiler. I got
bash-3.2$ g++ -Wall -lpthread -o hashjoin-pg hashjoin.cc -g -pg
bash-3.2$ ./hashjoin-pg
hashjoin <ncpus> <movies> <actresses>
bash-3.2$
H.J.