stephane eranian writes: > I am running into an issue trying to use enable_on_exec > in per-thread mode with an event group. > > My understanding is that enable_on_exec allows activation > of an event on first exec. This is useful for tools monitoring > other tasks and which you invoke as: tool my_program. In > other words, the tool forks+execs my_program. This option > allows developers to setup the events after the fork (to get > the pid) but before the exec(). Only execution after the exec > is monitored. This alleviates the need to use the > ptrace(PTRACE_TRACEME) call. > > My understanding is that an event group is scheduled only > if all events in the group are active (disabled=0). Thus, one
Not quite - if the leader is disabled then none of the group goes on. If the leader is enabled then it and any other group members that are enabled go on. If a non-leader member is disabled then it doesn't go on but it doesn't stop other members from going on. Paul. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
