__init__.py revision 10453 
1# Copyright (c) 2007 The Regents of The University of Michigan
2# Copyright (c) 2010 The Hewlett-Packard Development Company
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met: redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer;
9# redistributions in binary form must reproduce the above copyright
10# notice, this list of conditions and the following disclaimer in the
11# documentation and/or other materials provided with the distribution;
12# neither the name of the copyright holders nor the names of its
13# contributors may be used to endorse or promote products derived from
14# this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28# Authors: Nathan Binkert
29
30import m5
31
32from m5 import internal
33from m5.internal.stats import schedStatEvent as schedEvent
34from m5.objects import Root
35from m5.util import attrdict, fatal
36
37outputList = []
38def initText(filename, desc=True):
39    output = internal.stats.initText(filename, desc)
40    outputList.append(output)
41
42def initSimStats():
43    internal.stats.initSimStats()
44    internal.stats.registerPythonStatsHandlers()
45
46names = []
47stats_dict = {}
48stats_list = []
49raw_stats_list = []
50def enable():
51    '''Enable the statistics package.  Before the statistics package is
52    enabled, all statistics must be created and initialized and once
53    the package is enabled, no more statistics can be created.'''
54    __dynamic_cast = []
55    for k, v in internal.stats.__dict__.iteritems():
56        if k.startswith('dynamic_'):
57            __dynamic_cast.append(v)
58
59    for stat in internal.stats.statsList():
60        for cast in __dynamic_cast:
61            val = cast(stat)
62            if val is not None:
63                stats_list.append(val)
64                raw_stats_list.append(val)
65                break
66        else:
67            fatal("unknown stat type %s", stat)
68
69    for stat in stats_list:
70        if not stat.check() or not stat.baseCheck():
71            fatal("statistic '%s' (%d) was not properly initialized " \
72                  "by a regStats() function\n", stat.name, stat.id)
73
74        if not (stat.flags & flags.display):
75            stat.name = "__Stat%06d" % stat.id
76
77    def less(stat1, stat2):
78        v1 = stat1.name.split('.')
79        v2 = stat2.name.split('.')
80        return v1 < v2
81
82    stats_list.sort(less)
83    for stat in stats_list:
84        stats_dict[stat.name] = stat
85        stat.enable()
86
87    internal.stats.enable();
88
89def prepare():
90    '''Prepare all stats for data access.  This must be done before
91    dumping and serialization.'''
92
93    for stat in stats_list:
94        stat.prepare()
95
96lastDump = 0
97def dump():
98    '''Dump all statistics data to the registered outputs'''
99
100    curTick = m5.curTick()
101
102    global lastDump
103    assert lastDump <= curTick
104    if lastDump == curTick:
105        return
106    lastDump = curTick
107
108    internal.stats.processDumpQueue()
109
110    prepare()
111
112    for output in outputList:
113        if output.valid():
114            output.begin()
115            for stat in stats_list:
116                output.visit(stat)
117            output.end()
118
119def reset():
120    '''Reset all statistics to the base state'''
121
122    # call reset stats on all SimObjects
123    root = Root.getInstance()
124    if root:
125        for obj in root.descendants(): obj.resetStats()
126
127    # call any other registered stats reset callbacks
128    for stat in stats_list:
129        stat.reset()
130
131    internal.stats.processResetQueue()
132
133flags = attrdict({
134    'none'    : 0x0000,
135    'init'    : 0x0001,
136    'display' : 0x0002,
137    'total'   : 0x0010,
138    'pdf'     : 0x0020,
139    'cdf'     : 0x0040,
140    'dist'    : 0x0080,
141    'nozero'  : 0x0100,
142    'nonan'   : 0x0200,
143})
144