gprof reporting all 0.0 seconds

[michael]

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.
>
gprof if I remember is broken for multithread. I have some trouble to 
compile your test.

Regards Michael