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perf-stat
=========

.. code-block:: text

   Collect hardware performance counters using perf stat.

   Runs perf stat on cores 0 to N_CORES-1 for PERF_TIME seconds, collecting
   events such as LLC misses, L1 cache misses, branch misses, TLB misses, and
   instructions per cycle (IPC). Computes and outputs miss ratios.

   Use the tag "perf_all" to enable a more set of hardware events than the default events.

   Usage:
     %import@dut perf-stat N_CORES=4 PERF_TIME=5

   See also :doc:`perf-class <modules/perf-class>`

   // Perf stat