Hi! I've just run ZopeProfiler few times to check which functions are slowest in my site and during analysis of the results I've found something that confuses me a bit. When I'm showing results using "print_stats" and ordered by "time" I get times: calls tottime percall cumtime percall function ... total_x ... cumulative_x ... X:1026(__call__) for function X. This seemed good till I've used "print_callees" format which showed me that function X is calling function Y and Z and their execution times are: functions_time = Y_call_time + Z_call_time. As far as I understand it "tottime" is the time without subfunctions' call times and "cumtime" is with subfunctions' call times, so I supposed that: cumulative_x - functions_time = total_x but this is not true... in almost every case I've checked it is rather: total_x + functions_time > cumulative_x Why? I don't think these are concurrent threads... but what makes this difference? It's possibly something trivial but... ;) -- Maciej Wisniowski