tools/perf/tests/attr.py

   1 #! /usr/bin/python
   2
   3 import os
   4 import sys
   5 import glob
   6 import optparse
   7 import tempfile
   8 import logging
   9 import shutil
  10 import ConfigParser
  11
  12 class Fail(Exception):
  13     def __init__(self, test, msg):
  14         self.msg = msg
  15         self.test = test
  16     def getMsg(self):
  17         return '\'%s\' - %s' % (self.test.path, self.msg)
  18
  19 class Unsup(Exception):
  20     def __init__(self, test):
  21         self.test = test
  22     def getMsg(self):
  23         return '\'%s\'' % self.test.path
  24
  25 class Event(dict):
  26     terms = [
  27         'cpu',
  28         'flags',
  29         'type',
  30         'size',
  31         'config',
  32         'sample_period',
  33         'sample_type',
  34         'read_format',
  35         'disabled',
  36         'inherit',
  37         'pinned',
  38         'exclusive',
  39         'exclude_user',
  40         'exclude_kernel',
  41         'exclude_hv',
  42         'exclude_idle',
  43         'mmap',
  44         'comm',
  45         'freq',
  46         'inherit_stat',
  47         'enable_on_exec',
  48         'task',
  49         'watermark',
  50         'precise_ip',
  51         'mmap_data',
  52         'sample_id_all',
  53         'exclude_host',
  54         'exclude_guest',
  55         'exclude_callchain_kernel',
  56         'exclude_callchain_user',
  57         'wakeup_events',
  58         'bp_type',
  59         'config1',
  60         'config2',
  61         'branch_sample_type',
  62         'sample_regs_user',
  63         'sample_stack_user',
  64     ]
  65
  66     def add(self, data):
  67         for key, val in data:
  68             log.debug("      %s = %s" % (key, val))
  69             self[key] = val
  70
  71     def __init__(self, name, data, base):
  72         log.debug("    Event %s" % name);
  73         self.name  = name;
  74         self.group = ''
  75         self.add(base)
  76         self.add(data)
  77
  78     def compare_data(self, a, b):
  79         # Allow multiple values in assignment separated by '|'
  80         a_list = a.split('|')
  81         b_list = b.split('|')
  82
  83         for a_item in a_list:
  84             for b_item in b_list:
  85                 if (a_item == b_item):
  86                     return True
  87                 elif (a_item == '*') or (b_item == '*'):
  88                     return True
  89
  90         return False
  91
  92     def equal(self, other):
  93         for t in Event.terms:
  94             log.debug("      [%s] %s %s" % (t, self[t], other[t]));
  95             if not self.has_key(t) or not other.has_key(t):
  96                 return False
  97             if not self.compare_data(self[t], other[t]):
  98                 return False
  99         return True
 100
 101     def diff(self, other):
 102         for t in Event.terms:
 103             if not self.has_key(t) or not other.has_key(t):
 104                 continue
 105             if not self.compare_data(self[t], other[t]):
 106                 log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
 107
 108 # Test file description needs to have following sections:
 109 # [config]
 110 #   - just single instance in file
 111 #   - needs to specify:
 112 #     'command' - perf command name
 113 #     'args'    - special command arguments
 114 #     'ret'     - expected command return value (0 by default)
 115 #
 116 # [eventX:base]
 117 #   - one or multiple instances in file
 118 #   - expected values assignments
 119 class Test(object):
 120     def __init__(self, path, options):
 121         parser = ConfigParser.SafeConfigParser()
 122         parser.read(path)
 123
 124         log.warning("running '%s'" % path)
 125
 126         self.path     = path
 127         self.test_dir = options.test_dir
 128         self.perf     = options.perf
 129         self.command  = parser.get('config', 'command')
 130         self.args     = parser.get('config', 'args')
 131
 132         try:
 133             self.ret  = parser.get('config', 'ret')
 134         except:
 135             self.ret  = 0
 136
 137         self.expect   = {}
 138         self.result   = {}
 139         log.debug("  loading expected events");
 140         self.load_events(path, self.expect)
 141
 142     def is_event(self, name):
 143         if name.find("event") == -1:
 144             return False
 145         else:
 146             return True
 147
 148     def load_events(self, path, events):
 149         parser_event = ConfigParser.SafeConfigParser()
 150         parser_event.read(path)
 151
 152         # The event record section header contains 'event' word,
 153         # optionaly followed by ':' allowing to load 'parent
 154         # event' first as a base
 155         for section in filter(self.is_event, parser_event.sections()):
 156
 157             parser_items = parser_event.items(section);
 158             base_items   = {}
 159
 160             # Read parent event if there's any
 161             if (':' in section):
 162                 base = section[section.index(':') + 1:]
 163                 parser_base = ConfigParser.SafeConfigParser()
 164                 parser_base.read(self.test_dir + '/' + base)
 165                 base_items = parser_base.items('event')
 166
 167             e = Event(section, parser_items, base_items)
 168             events[section] = e
 169
 170     def run_cmd(self, tempdir):
 171         cmd = "PERF_TEST_ATTR=%s %s %s -o %s/perf.data %s" % (tempdir,
 172               self.perf, self.command, tempdir, self.args)
 173         ret = os.WEXITSTATUS(os.system(cmd))
 174
 175         log.info("  '%s' ret %d " % (cmd, ret))
 176
 177         if ret != int(self.ret):
 178             raise Unsup(self)
 179
 180     def compare(self, expect, result):
 181         match = {}
 182
 183         log.debug("  compare");
 184
 185         # For each expected event find all matching
 186         # events in result. Fail if there's not any.
 187         for exp_name, exp_event in expect.items():
 188             exp_list = []
 189             log.debug("    matching [%s]" % exp_name)
 190             for res_name, res_event in result.items():
 191                 log.debug("      to [%s]" % res_name)
 192                 if (exp_event.equal(res_event)):
 193                     exp_list.append(res_name)
 194                     log.debug("    ->OK")
 195                 else:
 196                     log.debug("    ->FAIL");
 197
 198             log.debug("    match: [%s] matches %s" % (exp_name, str(exp_list)))
 199
 200             # we did not any matching event - fail
 201             if (not exp_list):
 202                 exp_event.diff(res_event)
 203                 raise Fail(self, 'match failure');
 204
 205             match[exp_name] = exp_list
 206
 207         # For each defined group in the expected events
 208         # check we match the same group in the result.
 209         for exp_name, exp_event in expect.items():
 210             group = exp_event.group
 211
 212             if (group == ''):
 213                 continue
 214
 215             for res_name in match[exp_name]:
 216                 res_group = result[res_name].group
 217                 if res_group not in match[group]:
 218                     raise Fail(self, 'group failure')
 219
 220                 log.debug("    group: [%s] matches group leader %s" %
 221                          (exp_name, str(match[group])))
 222
 223         log.debug("  matched")
 224
 225     def resolve_groups(self, events):
 226         for name, event in events.items():
 227             group_fd = event['group_fd'];
 228             if group_fd == '-1':
 229                 continue;
 230
 231             for iname, ievent in events.items():
 232                 if (ievent['fd'] == group_fd):
 233                     event.group = iname
 234                     log.debug('[%s] has group leader [%s]' % (name, iname))
 235                     break;
 236
 237     def run(self):
 238         tempdir = tempfile.mkdtemp();
 239
 240         try:
 241             # run the test script
 242             self.run_cmd(tempdir);
 243
 244             # load events expectation for the test
 245             log.debug("  loading result events");
 246             for f in glob.glob(tempdir + '/event*'):
 247                 self.load_events(f, self.result);
 248
 249             # resolve group_fd to event names
 250             self.resolve_groups(self.expect);
 251             self.resolve_groups(self.result);
 252
 253             # do the expectation - results matching - both ways
 254             self.compare(self.expect, self.result)
 255             self.compare(self.result, self.expect)
 256
 257         finally:
 258             # cleanup
 259             shutil.rmtree(tempdir)
 260
 261
 262 def run_tests(options):
 263     for f in glob.glob(options.test_dir + '/' + options.test):
 264         try:
 265             Test(f, options).run()
 266         except Unsup, obj:
 267             log.warning("unsupp  %s" % obj.getMsg())
 268
 269 def setup_log(verbose):
 270     global log
 271     level = logging.CRITICAL
 272
 273     if verbose == 1:
 274         level = logging.WARNING
 275     if verbose == 2:
 276         level = logging.INFO
 277     if verbose >= 3:
 278         level = logging.DEBUG
 279
 280     log = logging.getLogger('test')
 281     log.setLevel(level)
 282     ch  = logging.StreamHandler()
 283     ch.setLevel(level)
 284     formatter = logging.Formatter('%(message)s')
 285     ch.setFormatter(formatter)
 286     log.addHandler(ch)
 287
 288 USAGE = '''%s [OPTIONS]
 289   -d dir  # tests dir
 290   -p path # perf binary
 291   -t test # single test
 292   -v      # verbose level
 293 ''' % sys.argv[0]
 294
 295 def main():
 296     parser = optparse.OptionParser(usage=USAGE)
 297
 298     parser.add_option("-t", "--test",
 299                       action="store", type="string", dest="test")
 300     parser.add_option("-d", "--test-dir",
 301                       action="store", type="string", dest="test_dir")
 302     parser.add_option("-p", "--perf",
 303                       action="store", type="string", dest="perf")
 304     parser.add_option("-v", "--verbose",
 305                       action="count", dest="verbose")
 306
 307     options, args = parser.parse_args()
 308     if args:
 309         parser.error('FAILED wrong arguments %s' %  ' '.join(args))
 310         return -1
 311
 312     setup_log(options.verbose)
 313
 314     if not options.test_dir:
 315         print 'FAILED no -d option specified'
 316         sys.exit(-1)
 317
 318     if not options.test:
 319         options.test = 'test*'
 320
 321     try:
 322         run_tests(options)
 323
 324     except Fail, obj:
 325         print "FAILED %s" % obj.getMsg();
 326         sys.exit(-1)
 327
 328     sys.exit(0)
 329
 330 if __name__ == '__main__':
 331     main()