__init__.py revision 8986 
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
45names = []
46stats_dict = {}
47stats_list = []
48raw_stats_list = []
49def enable():
50    '''Enable the statistics package.  Before the statistics package is
51    enabled, all statistics must be created and initialized and once
52    the package is enabled, no more statistics can be created.'''
53    __dynamic_cast = []
54    for k, v in internal.stats.__dict__.iteritems():
55        if k.startswith('dynamic_'):
56            __dynamic_cast.append(v)
57
58    for stat in internal.stats.statsList():
59        for cast in __dynamic_cast:
60            val = cast(stat)
61            if val is not None:
62                stats_list.append(val)
63                raw_stats_list.append(val)
64                break
65        else:
66            fatal("unknown stat type %s", stat)
67
68    for stat in stats_list:
69        if not stat.check() or not stat.baseCheck():
70            fatal("stat check failed for '%s' %d\n", stat.name, stat.id)
71
72        if not (stat.flags & flags.display):
73            stat.name = "__Stat%06d" % stat.id
74
75    def less(stat1, stat2):
76        v1 = stat1.name.split('.')
77        v2 = stat2.name.split('.')
78        return v1 < v2
79
80    stats_list.sort(less)
81    for stat in stats_list:
82        stats_dict[stat.name] = stat
83        stat.enable()
84
85    internal.stats.enable();
86
87def prepare():
88    '''Prepare all stats for data access.  This must be done before
89    dumping and serialization.'''
90
91    for stat in stats_list:
92        stat.prepare()
93
94lastDump = 0
95def dump():
96    '''Dump all statistics data to the registered outputs'''
97
98    curTick = m5.curTick()
99
100    global lastDump
101    assert lastDump <= curTick
102    if lastDump == curTick:
103        return
104    lastDump = curTick
105
106    prepare()
107
108    for output in outputList:
109        if output.valid():
110            output.begin()
111            for stat in stats_list:
112                output.visit(stat)
113            output.end()
114
115def reset():
116    '''Reset all statistics to the base state'''
117
118    # call reset stats on all SimObjects
119    root = Root.getInstance()
120    if root:
121        for obj in root.descendants(): obj.resetStats()
122
123    # call any other registered stats reset callbacks
124    for stat in stats_list:
125        stat.reset()
126
127    internal.stats.processResetQueue()
128
129flags = attrdict({
130    'none'    : 0x0000,
131    'init'    : 0x0001,
132    'display' : 0x0002,
133    'total'   : 0x0010,
134    'pdf'     : 0x0020,
135    'cdf'     : 0x0040,
136    'dist'    : 0x0080,
137    'nozero'  : 0x0100,
138    'nonan'   : 0x0200,
139})
140