profiling cache misses

[Eli C. <el...@me...>]

Hi,

I am trying to profile a network driver for cache misses. I use the
following command:
opcontrol -e DATA_CACHE_ACCESSES:50000 --start

After I stop the profiler and get a report I see the message:
CPU: AMD64 processors, speed 2400 MHz (estimated)
Counted CPU_CLK_UNHALTED events (Cycles outside of halt state) with a
unit mask of 0x00 (No unit mask) count 100000

Which looks like it sampled the default counter.

Can someone tell what an I doing wrong. Also please someone explain the
exact meaning of the count value (I just chose this arbitrarily).

Thanks.