1 """ 2 Sets up a subprocses to cat a file on a specified interval 3 4 Defaults options: 5 job.profilers.add('catprofile', ['/proc/meminfo','/proc/uptime'], 6 outfile=monitor, interval=1) 7 """ 8 import time, os 9 from autotest_lib.client.bin import profiler 10 11 class catprofile(profiler.profiler): 12 version = 1 13 14 # filenames: list of filenames to cat 15 def initialize(self, filenames = ['/proc/meminfo', '/proc/slabinfo'], 16 outfile = 'monitor', interval = 1): 17 self.filenames = filenames 18 self.outfile = outfile 19 self.interval = interval 20 21 22 def start(self, test): 23 self.child_pid = os.fork() 24 if self.child_pid: # parent 25 return None 26 else: # child 27 while 1: 28 lines = [] 29 for filename in self.filenames: 30 input = open(filename, 'r') 31 lines += '\n----- %s -----\n' % filename 32 lines += input.readlines() 33 input.close 34 outfile = test.profdir + '/' + self.outfile 35 output = open(outfile, 'a') 36 output.write(time.asctime() + '\n') 37 output.writelines(lines) 38 output.write('\n=========================\n') 39 output.close() 40 time.sleep(self.interval) 41 42 43 def stop(self, test): 44 os.kill(self.child_pid, 15) 45 46 47 def report(self, test): 48 return None 49
