If you look at src/arch/alpha/linux/system.cc there in a class called PrintThreadInfo. This pretty much does what you want assuming you're using our kernel or a kernel built from our patch queue. M5 sets an event on the kernel alpha_switch_to function and when that is executed it uses the kernel stack to figure out what the running process/tid is. You'll need to remove the false from the if statement that creates the event around line 139 for this to work.
Ali On May 22, 2010, at 5:14 PM, ef wrote: > Any additional advice on being able to this is appreciated. Basically I want > to have M5 be able to distinguish between threads not CPU. Since in PARSEC > benchmarks, threads tend to move around between CPUs. > > On Sat, May 22, 2010 at 9:57 AM, Steve Reinhardt <[email protected]> wrote: > There's nothing built-in for this that I know of. The issue is that > you're trying to detect an OS event... you could hook some action that > the OS takes only when scheduling a new thread, like perhaps updating > the page table base pointer or writing to the uniq register (via the > wruniq instruction). Someone like Nate or Ali who's done more > hands-on low-level Alpha Linux work could provide better details I'm > sure. > > Steve > > On Tue, May 18, 2010 at 9:15 PM, ef <[email protected]> wrote: > > Hello, > > > > I was wondering if there is a way for m5 (not glibc or the kernel) to signal > > when a new thread is on a cpu. I have some benchmarks that create new > > threads in the middle of execution, and I would like to see output on them > > being pinned to processors (I have more threads than processors, FS MODE). I > > looked through and tested trace flags and I couldnt find anything. Is there > > such flag? > > > > If not anyone know where I should implement a DPRINTF in m5 to do this? > > > > Thanks, > > EF > > > > _______________________________________________ > > m5-users mailing list > > [email protected] > > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > > > _______________________________________________ > m5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > > _______________________________________________ > m5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users _______________________________________________ m5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
