aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/tests/attr.py
blob: c9b4b6269b514dc6e1e88608fbb9f177f2cc561e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
#! /usr/bin/python

import os
import sys
import glob
import optparse
import tempfile
import logging
import shutil
import ConfigParser

class Fail(Exception):
    def __init__(self, test, msg):
        self.msg = msg
        self.test = test
    def getMsg(self):
        return '\'%s\' - %s' % (self.test.path, self.msg)

class Unsup(Exception):
    def __init__(self, test):
        self.test = test
    def getMsg(self):
        return '\'%s\'' % self.test.path

class Event(dict):
    terms = [
        'cpu',
        'flags',
        'type',
        'size',
        'config',
        'sample_period',
        'sample_type',
        'read_format',
        'disabled',
        'inherit',
        'pinned',
        'exclusive',
        'exclude_user',
        'exclude_kernel',
        'exclude_hv',
        'exclude_idle',
        'mmap',
        'comm',
        'freq',
        'inherit_stat',
        'enable_on_exec',
        'task',
        'watermark',
        'precise_ip',
        'mmap_data',
        'sample_id_all',
        'exclude_host',
        'exclude_guest',
        'exclude_callchain_kernel',
        'exclude_callchain_user',
        'wakeup_events',
        'bp_type',
        'config1',
        'config2',
        'branch_sample_type',
        'sample_regs_user',
        'sample_stack_user',
    ]

    def add(self, data):
        for key, val in data:
            log.debug("      %s = %s" % (key, val))
            self[key] = val

    def __init__(self, name, data, base):
        log.debug("    Event %s" % name);
        self.name  = name;
        self.group = ''
        self.add(base)
        self.add(data)

    def compare_data(self, a, b):
        # Allow multiple values in assignment separated by '|'
        a_list = a.split('|')
        b_list = b.split('|')

        for a_item in a_list:
            for b_item in b_list:
                if (a_item == b_item):
                    return True
                elif (a_item == '*') or (b_item == '*'):
                    return True

        return False

    def equal(self, other):
        for t in Event.terms:
            log.debug("      [%s] %s %s" % (t, self[t], other[t]));
            if not self.has_key(t) or not other.has_key(t):
                return False
            if not self.compare_data(self[t], other[t]):
                return False
        return True

    def diff(self, other):
        for t in Event.terms:
            if not self.has_key(t) or not other.has_key(t):
                continue
            if not self.compare_data(self[t], other[t]):
		log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
                

# Test file description needs to have following sections:
# [config]
#   - just single instance in file
#   - needs to specify:
#     'command' - perf command name
#     'args'    - special command arguments
#     'ret'     - expected command return value (0 by default)
#
# [eventX:base]
#   - one or multiple instances in file
#   - expected values assignments
class Test(object):
    def __init__(self, path, options):
        parser = ConfigParser.SafeConfigParser()
        parser.read(path)

        log.warning("running '%s'" % path)

        self.path     = path
        self.test_dir = options.test_dir
        self.perf     = options.perf
        self.command  = parser.get('config', 'command')
        self.args     = parser.get('config', 'args')

        try:
            self.ret  = parser.get('config', 'ret')
        except:
            self.ret  = 0

        self.expect   = {}
        self.result   = {}
        log.debug("  loading expected events");
        self.load_events(path, self.expect)

    def is_event(self, name):
        if name.find("event") == -1:
            return False
        else:
            return True

    def load_events(self, path, events):
        parser_event = ConfigParser.SafeConfigParser()
        parser_event.read(path)

        # The event record section header contains 'event' word,
        # optionaly followed by ':' allowing to load 'parent
        # event' first as a base
        for section in filter(self.is_event, parser_event.sections()):

            parser_items = parser_event.items(section);
            base_items   = {}

            # Read parent event if there's any
            if (':' in section):
                base = section[section.index(':') + 1:]
                parser_base = ConfigParser.SafeConfigParser()
                parser_base.read(self.test_dir + '/' + base)
                base_items = parser_base.items('event')

            e = Event(section, parser_items, base_items)
            events[section] = e

    def run_cmd(self, tempdir):
        cmd = "PERF_TEST_ATTR=%s %s %s -o %s/perf.data %s" % (tempdir,
              self.perf, self.command, tempdir, self.args)
        ret = os.WEXITSTATUS(os.system(cmd))

        log.info("  '%s' ret %d " % (cmd, ret))

        if ret != int(self.ret):
            raise Unsup(self)

    def compare(self, expect, result):
        match = {}

        log.debug("  compare");

        # For each expected event find all matching
        # events in result. Fail if there's not any.
        for exp_name, exp_event in expect.items():
            exp_list = []
            log.debug("    matching [%s]" % exp_name)
            for res_name, res_event in result.items():
                log.debug("      to [%s]" % res_name)
                if (exp_event.equal(res_event)):
                    exp_list.append(res_name)
                    log.debug("    ->OK")
                else:
                    log.debug("    ->FAIL");

            log.debug("    match: [%s] matches %s" % (exp_name, str(exp_list)))

            # we did not any matching event - fail
            if (not exp_list):
		exp_event.diff(res_event)
                raise Fail(self, 'match failure');

            match[exp_name] = exp_list

        # For each defined group in the expected events
        # check we match the same group in the result.
        for exp_name, exp_event in expect.items():
            group = exp_event.group

            if (group == ''):
                continue

            for res_name in match[exp_name]:
                res_group = result[res_name].group
                if res_group not in match[group]:
                    raise Fail(self, 'group failure')

                log.debug("    group: [%s] matches group leader %s" %
                         (exp_name, str(match[group])))

        log.debug("  matched")

    def resolve_groups(self, events):
        for name, event in events.items():
            group_fd = event['group_fd'];
            if group_fd == '-1':
                continue;

            for iname, ievent in events.items():
                if (ievent['fd'] == group_fd):
                    event.group = iname
                    log.debug('[%s] has group leader [%s]' % (name, iname))
                    break;

    def run(self):
        tempdir = tempfile.mkdtemp();

        try:
            # run the test script
            self.run_cmd(tempdir);

            # load events expectation for the test
            log.debug("  loading result events");
            for f in glob.glob(tempdir + '/event*'):
                self.load_events(f, self.result);

            # resolve group_fd to event names
            self.resolve_groups(self.expect);
            self.resolve_groups(self.result);

            # do the expectation - results matching - both ways
            self.compare(self.expect, self.result)
            self.compare(self.result, self.expect)

        finally:
            # cleanup
            shutil.rmtree(tempdir)


def run_tests(options):
    for f in glob.glob(options.test_dir + '/' + options.test):
        try:
            Test(f, options).run()
        except Unsup, obj:
            log.warning("unsupp  %s" % obj.getMsg())

def setup_log(verbose):
    global log
    level = logging.CRITICAL

    if verbose == 1:
        level = logging.WARNING
    if verbose == 2:
        level = logging.INFO
    if verbose >= 3:
        level = logging.DEBUG

    log = logging.getLogger('test')
    log.setLevel(level)
    ch  = logging.StreamHandler()
    ch.setLevel(level)
    formatter = logging.Formatter('%(message)s')
    ch.setFormatter(formatter)
    log.addHandler(ch)

USAGE = '''%s [OPTIONS]
  -d dir  # tests dir
  -p path # perf binary
  -t test # single test
  -v      # verbose level
''' % sys.argv[0]

def main():
    parser = optparse.OptionParser(usage=USAGE)

    parser.add_option("-t", "--test",
                      action="store", type="string", dest="test")
    parser.add_option("-d", "--test-dir",
                      action="store", type="string", dest="test_dir")
    parser.add_option("-p", "--perf",
                      action="store", type="string", dest="perf")
    parser.add_option("-v", "--verbose",
                      action="count", dest="verbose")

    options, args = parser.parse_args()
    if args:
        parser.error('FAILED wrong arguments %s' %  ' '.join(args))
        return -1

    setup_log(options.verbose)

    if not options.test_dir:
        print 'FAILED no -d option specified'
        sys.exit(-1)

    if not options.test:
        options.test = 'test*'

    try:
        run_tests(options)

    except Fail, obj:
        print "FAILED %s" % obj.getMsg();
        sys.exit(-1)

    sys.exit(0)

if __name__ == '__main__':
    main()