blob: 1a4328d93b9927e8008b1cca6957d34ea02d9f01 [file] [log] [blame]
Uses perf_events to count cycles and instructions
Defaults options:
job.profilers.add('cpistat', interval=1)
import time, os, subprocess
from autotest_lib.client.bin import profiler
class cpistat(profiler.profiler):
version = 1
def initialize(self, interval = 1):
self.interval = interval
def start(self, test):
cmd = os.path.join(self.bindir, 'site_cpistat')
if not os.path.exists(cmd):
cmd = os.path.join(self.bindir, 'cpistat')
logfile = open(os.path.join(test.profdir, "cpistat"), 'w')
p = subprocess.Popen(cmd, stdout=logfile,
stderr=subprocess.STDOUT) =
def stop(self, test):
os.kill(, 15)