Performance of the default node allocator.

[Alex Vinokur]

"Loren James Rittle" <rittle@latour.rsch.comm.mot.com> wrote in message news:200311110628.hAB6SL6c004734@latour.rsch.comm.mot.com...

[snip]

Hi Loren,

I have several questions and some suggestions.


> #include <iostream>
> #include <algorithm>
> #include <list>
   #include <vector>
> #include <memory>
--------------------------------------------
> #include <testsuite_performance.h>
Does GNU gcc contain such testsuite_performance.h?
--------------------------------------------
>
> template <class T>
> void clear_container (T& _cont) { T temp; std::swap (temp, _cont); }
>
vector<double> vect;
> int main ()
> {
>   std::list <double> il;
------------------------------------
>   using namespace __gnu_test;
Can users (not only developers) use that namespace?
I didn't find __gnu_test in g++ 3.3.1 (cygming special).
------------------------------------
>   time_counter time;
>   resource_counter resource;
>
>   for (int x = 3; x--;)
>     {
>       srand(0);
         vect.clear();
         for (int i = 0; i < SIZE; ++i) vect.push_back(rand()%300);
>       start_counters(time, resource);
--------- Remove? ---------
         >       for (int i = 0; i < 700000; ++i)
> il.push_back(rand()%300);
--------------------------
         for (int i = 0; i < 700000; ++i) push_back(vect[i])
>       stop_counters(time, resource);
>       report_performance(__FILE__, "insert", time, resource);
>
>       start_counters(time, resource);
>       il.sort();
>       stop_counters(time, resource);
>       report_performance(__FILE__, "sort", time, resource);
>
>       start_counters(time, resource);
>       clear_container(il);
>       stop_counters(time, resource);
>       report_performance(__FILE__, "clear", time, resource);
>     }
> }
>


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   Alex Vinokur
     mailto:alexvn@connect.to
     http://mathforum.org/library/view/10978.html
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