base.cc revision 8229:78bf55f23338 
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 "cpu/smt.hh" //maxThreadsPerCPU
38#include "mem/cache/tags/base.hh"
39#include "mem/cache/base.hh"
40#include "sim/sim_exit.hh"
41
42using namespace std;
43
44void
45BaseTags::setCache(BaseCache *_cache)
46{
47    cache = _cache;
48    objName = cache->name();
49}
50
51void
52BaseTags::regStats(const string &name)
53{
54    using namespace Stats;
55    replacements
56        .init(maxThreadsPerCPU)
57        .name(name + ".replacements")
58        .desc("number of replacements")
59        .flags(total)
60        ;
61
62    tagsInUse
63        .name(name + ".tagsinuse")
64        .desc("Cycle average of tags in use")
65        ;
66
67    totalRefs
68        .name(name + ".total_refs")
69        .desc("Total number of references to valid blocks.")
70        ;
71
72    sampledRefs
73        .name(name + ".sampled_refs")
74        .desc("Sample count of references to valid blocks.")
75        ;
76
77    avgRefs
78        .name(name + ".avg_refs")
79        .desc("Average number of references to valid blocks.")
80        ;
81
82    avgRefs = totalRefs/sampledRefs;
83
84    warmupCycle
85        .name(name + ".warmup_cycle")
86        .desc("Cycle when the warmup percentage was hit.")
87        ;
88
89    occupancies
90        .init(cache->numCpus() + 1)
91        .name(name + ".occ_blocks")
92        .desc("Average occupied blocks per context")
93        .flags(nozero | nonan)
94        ;
95
96    avgOccs
97        .name(name + ".occ_%")
98        .desc("Average percentage of cache occupancy")
99        .flags(nozero)
100        ;
101
102    avgOccs = occupancies / Stats::constant(numBlocks);
103
104    registerExitCallback(new BaseTagsCallback(this));
105}
106