I'm trying to use hprof to dump data on my servlet's performance. The servlet runs under iPlanet Web Server 6.0. I've tried a slew of options and the only ascii data that dumps is the 'Thread START' section. If I output binary format I get more data, but the Heap Analysis Tool (HAT) seems to be broke for jdk 1.4.2. If I get the ascii output I can use many tools to assess the data (JPM is very good)...any ideas and Thanks!