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#!/usr/bin/env python3
import subprocess as sp
from runtest import TestBase
XDIR='xxx'
YDIR='yyy'
class TestCase(TestBase):
def __init__(self):
TestBase.__init__(self, 'abc', """
#
# uftrace diff
# [0] base: xxx (from uftrace record -d xxx tests/t-abc )
# [1] diff: yyy (from uftrace record -d yyy tests/t-abc )
#
Total time (diff) Self time (diff) Nr. called (diff) Function
================================ ================================ ================================ ====================================
6.974 us 6.268 us -10.12% 0.560 us 0.511 us -8.75% 1 1 +0 main
6.414 us 5.757 us -10.24% 0.489 us 0.372 us -23.93% 1 1 +0 a
5.925 us 5.385 us -9.11% 0.786 us 0.554 us -29.52% 1 1 +0 b
5.139 us 4.831 us -5.99% 3.517 us 3.137 us -10.80% 1 1 +0 c
1.622 us 1.694 us +4.44% 1.622 us 1.694 us +4.44% 1 1 +0 getpid
""")
def prerun(self, timeout):
self.subcmd = 'record'
self.option = '-d ' + XDIR
self.exearg = 't-' + self.name
record_cmd = self.runcmd()
sp.call(record_cmd.split())
self.option = '-d ' + YDIR
record_cmd = self.runcmd()
sp.call(record_cmd.split())
return TestBase.TEST_SUCCESS
def setup(self):
self.subcmd = 'report'
self.option = '--sort-column 0 --diff-policy full,percent' # old behavior
self.exearg = '-d %s --diff %s' % (XDIR, YDIR)
def sort(self, output):
""" This function post-processes output of the test to be compared .
It ignores blank and comment (#) lines and remaining functions. """
result = []
for ln in output.split('\n'):
if ln.startswith('#') or ln.strip() == '':
continue
line = ln.split()
if line[0] == 'Total':
continue
if line[0].startswith('='):
continue
# A report line consists of following data
# [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
# tT/0 unit tT/1 unit percent tS/0 unit tS/1 unit percent call/0 call/1 call/diff function
if line[-1].startswith('__'):
continue
result.append('%s %s %s %s' % (line[-4], line[-3], line[-2], line[-1]))
return '\n'.join(result)
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