On 6/27/12 8:20 PM, Namhyung Kim wrote:
> NAK. This uses_mmap field is needed to setup per-task-per-cpu events for
> perf record (mostly). Without it, perf suffered from severe scalability
> issues. Maybe we can change it not to create per-task-per-cpu events iff
> for hwbp events only, but I'm not sure it's the right thing.
>
> Thanks,
> Namhyung

Add -a to the record command. And if you want to dump the samples try 
the attached.

David