1a4 Subj : thread log file To : comp.programming.threads From : Jason Jesso Date : Mon Aug 08 2005 07:47 pm I have a system with multiple threads. Each thread outputs to a log file when it starts: "StartThread-N" where N is the Thread id When each thread exists it outputs "StopThread-N" What's the most efficient way of reporting which thread have not stopped, assuming very large log files? . 0