Why are the instructions_executed so unexpected? Its quite common in
multithreaded code to have work imbalance, that eventually manifests
itself as N-1 out of N threads spinning (quickly -- committing a LOT of
instructions) on a lock or CV...
Regards,
Dan
Zhang Yu wrote:
Hi,
When I run a 16-thread application on a 16-core simulated machine, how
should I collect the IPC information? I checked the statistics dumped
by ruby, it seems that there is a big variation between different cores
in terms of "instructions_executed". For example, some core only
execute 10% instructions of some other core. According to the
application I run, this shouldn't be the case. Can somebody tell how
to collect the IPC information of the simulated CMP machine correctly?
Thanks a lot.
Yu
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