#!/usr/bin/python3
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#
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# Script for comparing buildstats from two different builds
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#
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# Copyright (c) 2016, Intel Corporation.
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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import argparse
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import glob
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import logging
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import math
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import os
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import sys
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from operator import attrgetter
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# Import oe libs
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scripts_path = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(scripts_path, 'lib'))
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from buildstats import BuildStats, diff_buildstats, taskdiff_fields, BSVerDiff
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# Setup logging
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logging.basicConfig(level=logging.INFO, format="%(levelname)s: %(message)s")
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log = logging.getLogger()
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class ScriptError(Exception):
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"""Exception for internal error handling of this script"""
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pass
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def read_buildstats(path, multi):
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"""Read buildstats"""
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if not os.path.exists(path):
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raise ScriptError("No such file or directory: {}".format(path))
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if os.path.isfile(path):
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return BuildStats.from_file_json(path)
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if os.path.isfile(os.path.join(path, 'build_stats')):
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return BuildStats.from_dir(path)
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# Handle a non-buildstat directory
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subpaths = sorted(glob.glob(path + '/*'))
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if len(subpaths) > 1:
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if multi:
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log.info("Averaging over {} buildstats from {}".format(
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len(subpaths), path))
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else:
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raise ScriptError("Multiple buildstats found in '{}'. Please give "
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"a single buildstat directory of use the --multi "
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"option".format(path))
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bs = None
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for subpath in subpaths:
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if os.path.isfile(subpath):
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_bs = BuildStats.from_file_json(subpath)
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else:
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_bs = BuildStats.from_dir(subpath)
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if bs is None:
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bs = _bs
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else:
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bs.aggregate(_bs)
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if not bs:
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raise ScriptError("No buildstats found under {}".format(path))
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return bs
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def print_ver_diff(bs1, bs2):
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"""Print package version differences"""
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diff = BSVerDiff(bs1, bs2)
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maxlen = max([len(r) for r in set(bs1.keys()).union(set(bs2.keys()))])
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fmt_str = " {:{maxlen}} ({})"
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if diff.new:
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print("\nNEW RECIPES:")
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print("------------")
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for name, val in sorted(diff.new.items()):
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print(fmt_str.format(name, val.nevr, maxlen=maxlen))
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if diff.dropped:
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print("\nDROPPED RECIPES:")
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print("----------------")
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for name, val in sorted(diff.dropped.items()):
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print(fmt_str.format(name, val.nevr, maxlen=maxlen))
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fmt_str = " {0:{maxlen}} {1:<20} ({2})"
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if diff.rchanged:
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print("\nREVISION CHANGED:")
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print("-----------------")
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for name, val in sorted(diff.rchanged.items()):
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field1 = "{} -> {}".format(val.left.revision, val.right.revision)
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field2 = "{} -> {}".format(val.left.nevr, val.right.nevr)
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print(fmt_str.format(name, field1, field2, maxlen=maxlen))
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if diff.vchanged:
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print("\nVERSION CHANGED:")
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print("----------------")
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for name, val in sorted(diff.vchanged.items()):
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field1 = "{} -> {}".format(val.left.version, val.right.version)
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field2 = "{} -> {}".format(val.left.nevr, val.right.nevr)
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print(fmt_str.format(name, field1, field2, maxlen=maxlen))
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if diff.echanged:
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print("\nEPOCH CHANGED:")
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print("--------------")
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for name, val in sorted(diff.echanged.items()):
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field1 = "{} -> {}".format(val.left.epoch, val.right.epoch)
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field2 = "{} -> {}".format(val.left.nevr, val.right.nevr)
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print(fmt_str.format(name, field1, field2, maxlen=maxlen))
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def print_task_diff(bs1, bs2, val_type, min_val=0, min_absdiff=0, sort_by=('absdiff',), only_tasks=[]):
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"""Diff task execution times"""
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def val_to_str(val, human_readable=False):
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"""Convert raw value to printable string"""
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def hms_time(secs):
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"""Get time in human-readable HH:MM:SS format"""
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h = int(secs / 3600)
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m = int((secs % 3600) / 60)
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s = secs % 60
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if h == 0:
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return "{:02d}:{:04.1f}".format(m, s)
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else:
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return "{:d}:{:02d}:{:04.1f}".format(h, m, s)
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if 'time' in val_type:
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if human_readable:
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return hms_time(val)
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else:
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return "{:.1f}s".format(val)
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elif 'bytes' in val_type and human_readable:
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prefix = ['', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi']
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dec = int(math.log(val, 2) / 10)
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prec = 1 if dec > 0 else 0
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return "{:.{prec}f}{}B".format(val / (2 ** (10 * dec)),
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prefix[dec], prec=prec)
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elif 'ops' in val_type and human_readable:
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prefix = ['', 'k', 'M', 'G', 'T', 'P']
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dec = int(math.log(val, 1000))
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prec = 1 if dec > 0 else 0
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return "{:.{prec}f}{}ops".format(val / (1000 ** dec),
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prefix[dec], prec=prec)
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return str(int(val))
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def sum_vals(buildstats):
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"""Get cumulative sum of all tasks"""
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total = 0.0
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for recipe_data in buildstats.values():
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for name, bs_task in recipe_data.tasks.items():
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if not only_tasks or name in only_tasks:
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total += getattr(bs_task, val_type)
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return total
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if min_val:
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print("Ignoring tasks less than {} ({})".format(
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val_to_str(min_val, True), val_to_str(min_val)))
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if min_absdiff:
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print("Ignoring differences less than {} ({})".format(
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val_to_str(min_absdiff, True), val_to_str(min_absdiff)))
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# Prepare the data
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tasks_diff = diff_buildstats(bs1, bs2, val_type, min_val, min_absdiff, only_tasks)
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# Sort our list
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for field in reversed(sort_by):
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if field.startswith('-'):
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field = field[1:]
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reverse = True
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else:
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reverse = False
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tasks_diff = sorted(tasks_diff, key=attrgetter(field), reverse=reverse)
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linedata = [(' ', 'PKG', ' ', 'TASK', 'ABSDIFF', 'RELDIFF',
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val_type.upper() + '1', val_type.upper() + '2')]
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field_lens = dict([('len_{}'.format(i), len(f)) for i, f in enumerate(linedata[0])])
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# Prepare fields in string format and measure field lengths
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for diff in tasks_diff:
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task_prefix = diff.task_op if diff.pkg_op == ' ' else ' '
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linedata.append((diff.pkg_op, diff.pkg, task_prefix, diff.task,
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val_to_str(diff.absdiff),
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'{:+.1f}%'.format(diff.reldiff),
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val_to_str(diff.value1),
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val_to_str(diff.value2)))
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for i, field in enumerate(linedata[-1]):
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key = 'len_{}'.format(i)
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if len(field) > field_lens[key]:
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field_lens[key] = len(field)
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# Print data
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print()
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for fields in linedata:
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print("{:{len_0}}{:{len_1}} {:{len_2}}{:{len_3}} {:>{len_4}} {:>{len_5}} {:>{len_6}} -> {:{len_7}}".format(
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*fields, **field_lens))
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# Print summary of the diffs
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total1 = sum_vals(bs1)
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total2 = sum_vals(bs2)
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print("\nCumulative {}:".format(val_type))
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print (" {} {:+.1f}% {} ({}) -> {} ({})".format(
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val_to_str(total2 - total1), 100 * (total2-total1) / total1,
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val_to_str(total1, True), val_to_str(total1),
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val_to_str(total2, True), val_to_str(total2)))
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def parse_args(argv):
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"""Parse cmdline arguments"""
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description="""
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Script for comparing buildstats of two separate builds."""
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parser = argparse.ArgumentParser(
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formatter_class=argparse.ArgumentDefaultsHelpFormatter,
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description=description)
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min_val_defaults = {'cputime': 3.0,
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'read_bytes': 524288,
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'write_bytes': 524288,
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'read_ops': 500,
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'write_ops': 500,
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'walltime': 5}
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min_absdiff_defaults = {'cputime': 1.0,
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'read_bytes': 131072,
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'write_bytes': 131072,
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'read_ops': 50,
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'write_ops': 50,
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'walltime': 2}
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parser.add_argument('--debug', '-d', action='store_true',
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help="Verbose logging")
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parser.add_argument('--ver-diff', action='store_true',
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help="Show package version differences and exit")
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parser.add_argument('--diff-attr', default='cputime',
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choices=min_val_defaults.keys(),
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help="Buildstat attribute which to compare")
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parser.add_argument('--min-val', default=min_val_defaults, type=float,
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help="Filter out tasks less than MIN_VAL. "
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"Default depends on --diff-attr.")
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parser.add_argument('--min-absdiff', default=min_absdiff_defaults, type=float,
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help="Filter out tasks whose difference is less than "
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"MIN_ABSDIFF, Default depends on --diff-attr.")
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parser.add_argument('--sort-by', default='absdiff',
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help="Comma-separated list of field sort order. "
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"Prepend the field name with '-' for reversed sort. "
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"Available fields are: {}".format(', '.join(taskdiff_fields)))
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parser.add_argument('--multi', action='store_true',
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help="Read all buildstats from the given paths and "
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"average over them")
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parser.add_argument('--only-task', dest='only_tasks', metavar='TASK', action='append', default=[],
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help="Only include TASK in report. May be specified multiple times")
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parser.add_argument('buildstats1', metavar='BUILDSTATS1', help="'Left' buildstat")
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parser.add_argument('buildstats2', metavar='BUILDSTATS2', help="'Right' buildstat")
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args = parser.parse_args(argv)
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# We do not nedd/want to read all buildstats if we just want to look at the
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# package versions
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if args.ver_diff:
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args.multi = False
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# Handle defaults for the filter arguments
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if args.min_val is min_val_defaults:
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args.min_val = min_val_defaults[args.diff_attr]
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if args.min_absdiff is min_absdiff_defaults:
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args.min_absdiff = min_absdiff_defaults[args.diff_attr]
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return args
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def main(argv=None):
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"""Script entry point"""
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args = parse_args(argv)
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if args.debug:
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log.setLevel(logging.DEBUG)
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# Validate sort fields
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sort_by = []
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for field in args.sort_by.split(','):
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if field.lstrip('-') not in taskdiff_fields:
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log.error("Invalid sort field '%s' (must be one of: %s)" %
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(field, ', '.join(taskdiff_fields)))
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sys.exit(1)
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sort_by.append(field)
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try:
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bs1 = read_buildstats(args.buildstats1, args.multi)
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bs2 = read_buildstats(args.buildstats2, args.multi)
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if args.ver_diff:
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print_ver_diff(bs1, bs2)
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else:
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print_task_diff(bs1, bs2, args.diff_attr, args.min_val,
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args.min_absdiff, sort_by, args.only_tasks)
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except ScriptError as err:
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log.error(str(err))
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return 1
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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