def testParseHist(self):
script = Script("""
if ($ns) {
@usecs = hist((nsecs - $ns) / 1000);
}
delete(@qtime[args->next_pid]);
""")
script = parse_code(script)
self.assertEqual(script.variables['@usecs'].metrictype,
MetricType.Histogram)
self.assertEqual(script.variables['@usecs'].semantics, PM_SEM_COUNTER)
def testParseLhist(self):
script = Script("""
profile:hz:99
/pid/
{
@cpu = lhist(cpu, 0, 1000, 1);
}
""")
script = parse_code(script)
self.assertEqual(script.variables['@cpu'].metrictype,
MetricType.Histogram)
self.assertEqual(script.variables['@cpu'].semantics, PM_SEM_COUNTER)
def testTableRetainLines(self):
runtime_info = RuntimeInfo()
runtime_info.bpftrace_version = (0, 9, 2)
script = Script('// table-retain-lines: 3\n' 'printf("test");')
script = parse_code(script)
self.assertEqual(script.metadata.table_retain_lines, 3)
def add_output(s):
process_bpftrace_output_obj(runtime_info, script, {
"type": "printf",
"msg": s
})
def assert_output(o):
self.assertEqual(script.state.data["@output"], o)
add_output('head')
assert_output('head')
add_output('er\n')
assert_output('header\n')
add_output('line ')
assert_output('header\nline ')
add_output('1\n')
assert_output('header\nline 1\n')
add_output('line ')
assert_output('header\nline 1\nline ')
add_output('2\n')
assert_output('header\nline 1\nline 2\n')
add_output('line ')
assert_output('header\nline 1\nline 2\nline ')
add_output('3\n')
assert_output('header\nline 1\nline 2\nline 3\n')
add_output('line ')
assert_output('header\nline 2\nline 3\nline ')
add_output('4\n')
assert_output('header\nline 2\nline 3\nline 4\n')
add_output('line ')
assert_output('header\nline 3\nline 4\nline ')
add_output('5\n')
assert_output('header\nline 3\nline 4\nline 5\n')
add_output('line 10\nline 11\nline 12\n')
assert_output('header\nline 10\nline 11\nline 12\n')
def testParseStackProfiler(self):
script = Script("""
profile:hz:99 { @[kstack] = count(); }
@ck[comm,kstack] = count();
@u[ustack] = count();
@a[comm,kstack,ustack] = count();
@n[nokstack] = count();
""")
script = parse_code(script)
self.assertEqual(script.variables['@'].metrictype, MetricType.Stacks)
self.assertEqual(script.variables['@'].semantics, PM_SEM_COUNTER)
self.assertEqual(script.variables['@ck'].metrictype, MetricType.Stacks)
self.assertEqual(script.variables['@ck'].semantics, PM_SEM_COUNTER)
self.assertEqual(script.variables['@u'].metrictype, MetricType.Stacks)
self.assertEqual(script.variables['@u'].semantics, PM_SEM_COUNTER)
self.assertEqual(script.variables['@a'].metrictype, MetricType.Stacks)
self.assertEqual(script.variables['@a'].semantics, PM_SEM_COUNTER)
self.assertEqual(script.variables['@n'].metrictype, None)
self.assertEqual(script.variables['@n'].semantics, PM_SEM_COUNTER)
def testParseStackProfiler(self):
script = Script('profile:hz:99 { @[kstack] = count(); }')
script = parse_code(script)
self.assertEqual(script.variables['@'].metrictype, MetricType.Stacks)
self.assertEqual(script.variables['@'].semantics, PM_SEM_COUNTER)