Perhaps your thread has been preempted during execution causing the delay. ------Original Message------ From: gmail Sender: boost-users-bounces@lists.boost.org To: boost-user-list ReplyTo: boost-users@lists.boost.org Sent: Sep 5, 2008 4:15 AM Subject: [Boost-users] [timer] eclapsed return zero Hello, I have used the timer class in my application. It works ok sometime but i think it dont work correctly. my code is: #include <iostream> #include "boost/timer.hpp" using namespace std; using namespace boost; int main() {    int count=0;    timer t;    for(;count<1000000;++count);    cout<http://lists.boost.org/mailman/listinfo.cgi/boost-users Sent from my Verizon Wireless BlackBerry