base.cc revision 6979:7732bca47f60 
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
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: Erik Hallnor
29 *          Ron Dreslinski
30 */
31
32/**
33 * @file
34 * Definitions of BaseTags.
35 */
36
37#include "mem/cache/tags/base.hh"
38
39#include "mem/cache/base.hh"
40#include "cpu/smt.hh" //maxThreadsPerCPU
41#include "sim/sim_exit.hh"
42
43using namespace std;
44
45void
46BaseTags::setCache(BaseCache *_cache)
47{
48    cache = _cache;
49    objName = cache->name();
50}
51
52void
53BaseTags::regStats(const string &name)
54{
55    using namespace Stats;
56    replacements
57        .init(maxThreadsPerCPU)
58        .name(name + ".replacements")
59        .desc("number of replacements")
60        .flags(total)
61        ;
62
63    tagsInUse
64        .name(name + ".tagsinuse")
65        .desc("Cycle average of tags in use")
66        ;
67
68    totalRefs
69        .name(name + ".total_refs")
70        .desc("Total number of references to valid blocks.")
71        ;
72
73    sampledRefs
74        .name(name + ".sampled_refs")
75        .desc("Sample count of references to valid blocks.")
76        ;
77
78    avgRefs
79        .name(name + ".avg_refs")
80        .desc("Average number of references to valid blocks.")
81        ;
82
83    avgRefs = totalRefs/sampledRefs;
84
85    warmupCycle
86        .name(name + ".warmup_cycle")
87        .desc("Cycle when the warmup percentage was hit.")
88        ;
89
90    occupancies
91        .init(cache->numCpus() + 1)
92        .name(name + ".occ_blocks")
93        .desc("Average occupied blocks per context")
94        .flags(nozero | nonan)
95        ;
96
97    avgOccs
98        .name(name + ".occ_%")
99        .desc("Average percentage of cache occupancy")
100        .flags(nozero)
101        ;
102
103    avgOccs = occupancies / Stats::constant(numBlocks);
104
105    registerExitCallback(new BaseTagsCallback(this));
106}
107