8b52b746eaa2809080b0acba1331219a8acd15fd
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40 * Authors: Erik Hallnor
46 * Definitions of BaseTags.
49 #include "mem/cache/tags/base.hh"
51 #include "cpu/smt.hh" //maxThreadsPerCPU
52 #include "mem/cache/base.hh"
53 #include "sim/sim_exit.hh"
57 BaseTags::BaseTags(const Params
*p
)
58 : ClockedObject(p
), blkSize(p
->block_size
), blkMask(blkSize
- 1),
60 lookupLatency(p
->tag_latency
),
61 accessLatency(p
->sequential_access
?
62 p
->tag_latency
+ p
->data_latency
:
63 std::max(p
->tag_latency
, p
->data_latency
)),
65 warmupBound((p
->warmup_percentage
/100.0) * (p
->size
/ p
->block_size
)),
66 warmedUp(false), numBlocks(p
->size
/ p
->block_size
)
71 BaseTags::setCache(BaseCache
*_cache
)
80 ClockedObject::regStats();
82 using namespace Stats
;
85 .init(maxThreadsPerCPU
)
86 .name(name() + ".replacements")
87 .desc("number of replacements")
92 .name(name() + ".tagsinuse")
93 .desc("Cycle average of tags in use")
97 .name(name() + ".total_refs")
98 .desc("Total number of references to valid blocks.")
102 .name(name() + ".sampled_refs")
103 .desc("Sample count of references to valid blocks.")
107 .name(name() + ".avg_refs")
108 .desc("Average number of references to valid blocks.")
111 avgRefs
= totalRefs
/sampledRefs
;
114 .name(name() + ".warmup_cycle")
115 .desc("Cycle when the warmup percentage was hit.")
119 .init(cache
->system
->maxMasters())
120 .name(name() + ".occ_blocks")
121 .desc("Average occupied blocks per requestor")
122 .flags(nozero
| nonan
)
124 for (int i
= 0; i
< cache
->system
->maxMasters(); i
++) {
125 occupancies
.subname(i
, cache
->system
->getMasterName(i
));
129 .name(name() + ".occ_percent")
130 .desc("Average percentage of cache occupancy")
131 .flags(nozero
| total
)
133 for (int i
= 0; i
< cache
->system
->maxMasters(); i
++) {
134 avgOccs
.subname(i
, cache
->system
->getMasterName(i
));
137 avgOccs
= occupancies
/ Stats::constant(numBlocks
);
140 .init(ContextSwitchTaskId::NumTaskId
)
141 .name(name() + ".occ_task_id_blocks")
142 .desc("Occupied blocks per task id")
143 .flags(nozero
| nonan
)
147 .init(ContextSwitchTaskId::NumTaskId
, 5)
148 .name(name() + ".age_task_id_blocks")
149 .desc("Occupied blocks per task id")
150 .flags(nozero
| nonan
)
154 .name(name() + ".occ_task_id_percent")
155 .desc("Percentage of cache occupancy per task id")
159 percentOccsTaskId
= occupanciesTaskId
/ Stats::constant(numBlocks
);
162 .name(name() + ".tag_accesses")
163 .desc("Number of tag accesses")
167 .name(name() + ".data_accesses")
168 .desc("Number of data accesses")
171 registerDumpCallback(new BaseTagsDumpCallback(this));
172 registerExitCallback(new BaseTagsCallback(this));