Re: [Boost-users] Thread creation overhead & efficiency

I have tried threadpool. It is my understanding that the code fragment below should run in constant time independent of the number of threads (assuming that the ³Test::operator()² method runs in constant time). However, I observe an increase in runtime as I increase the pool size from say 1 to 5. Any thoughts on this? James

int main() { const int nt = 5; const int nit = 10000;

time_t t1 = clock();

boost::threadpool::pool p(1); for( int j=0; j

std::cout << "t=" << difftime(clock(), t1) << std::endl; return 0; }