1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 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 29#include <vector> 30 31#include "base/stl_helpers.hh"
| 1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 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 29#include <vector> 30 31#include "base/stl_helpers.hh"
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32#include "mem/gems_common/Map.hh"
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33#include "mem/gems_common/PrioHeap.hh" 34#include "mem/protocol/CacheMsg.hh"
| 32#include "mem/gems_common/PrioHeap.hh" 33#include "mem/protocol/CacheMsg.hh"
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35#include "mem/ruby/profiler/AccessTraceForAddress.hh"
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36#include "mem/ruby/profiler/AddressProfiler.hh" 37#include "mem/ruby/profiler/Profiler.hh" 38#include "mem/ruby/system/System.hh" 39 40using namespace std; 41typedef AddressProfiler::AddressMap AddressMap; 42 43using m5::stl_helpers::operator<<; 44 45// Helper functions 46AccessTraceForAddress&
| 34#include "mem/ruby/profiler/AddressProfiler.hh" 35#include "mem/ruby/profiler/Profiler.hh" 36#include "mem/ruby/system/System.hh" 37 38using namespace std; 39typedef AddressProfiler::AddressMap AddressMap; 40 41using m5::stl_helpers::operator<<; 42 43// Helper functions 44AccessTraceForAddress&
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47lookupTraceForAddress(const Address& addr, AddressMap* record_map)
| 45lookupTraceForAddress(const Address& addr, AddressMap& record_map)
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48{
| 46{
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49 if (!record_map->exist(addr)) { 50 record_map->add(addr, AccessTraceForAddress(addr));
| 47 // we create a static default object here that is used to insert 48 // since the insertion will create a copy of the object in the 49 // process. Perhaps this is optimizing early, but it doesn't seem 50 // like it could hurt. 51 static const AccessTraceForAddress dflt; 52 53 pair<AddressMap::iterator, bool> r = 54 record_map.insert(make_pair(addr, dflt)); 55 AddressMap::iterator i = r.first; 56 AccessTraceForAddress &access_trace = i->second; 57 if (r.second) { 58 // there was nothing there and the insert succeed, so we need 59 // to actually set the address. 60 access_trace.setAddress(addr);
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51 }
| 61 }
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52 return record_map->lookup(addr);
| 62 63 return access_trace;
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53} 54 55void
| 64} 65 66void
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56printSorted(ostream& out, int num_of_sequencers, const AddressMap* record_map,
| 67printSorted(ostream& out, int num_of_sequencers, const AddressMap &record_map,
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57 string description) 58{ 59 const int records_printed = 100; 60 61 uint64 misses = 0;
| 68 string description) 69{ 70 const int records_printed = 100; 71 72 uint64 misses = 0;
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62 PrioHeap heap; 63 std::vector<Address> keys = record_map->keys(); 64 for (int i = 0; i < keys.size(); i++) { 65 AccessTraceForAddress* record = &(record_map->lookup(keys[i]));
| 73 PrioHeap<const AccessTraceForAddress*> heap; 74 75 AddressMap::const_iterator i = record_map.begin(); 76 AddressMap::const_iterator end = record_map.end(); 77 for (; i != end; ++i) { 78 const AccessTraceForAddress* record = &i->second;
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66 misses += record->getTotal(); 67 heap.insert(record); 68 } 69
| 79 misses += record->getTotal(); 80 heap.insert(record); 81 } 82
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70 out << "Total_entries_" << description << ": " << keys.size() << endl;
| 83 out << "Total_entries_" << description << ": " << record_map.size() 84 << endl;
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71 if (g_system_ptr->getProfiler()->getAllInstructions()) 72 out << "Total_Instructions_" << description << ": " << misses << endl; 73 else 74 out << "Total_data_misses_" << description << ": " << misses << endl; 75 76 out << "total | load store atomic | user supervisor | sharing | touched-by" 77 << endl; 78 79 Histogram remaining_records(1, 100); 80 Histogram all_records(1, 100); 81 Histogram remaining_records_log(-1); 82 Histogram all_records_log(-1); 83 84 // Allows us to track how many lines where touched by n processors 85 std::vector<int64> m_touched_vec; 86 std::vector<int64> m_touched_weighted_vec; 87 m_touched_vec.resize(num_of_sequencers+1); 88 m_touched_weighted_vec.resize(num_of_sequencers+1); 89 for (int i = 0; i < m_touched_vec.size(); i++) { 90 m_touched_vec[i] = 0; 91 m_touched_weighted_vec[i] = 0; 92 } 93 94 int counter = 0; 95 while (heap.size() > 0 && counter < records_printed) {
| 85 if (g_system_ptr->getProfiler()->getAllInstructions()) 86 out << "Total_Instructions_" << description << ": " << misses << endl; 87 else 88 out << "Total_data_misses_" << description << ": " << misses << endl; 89 90 out << "total | load store atomic | user supervisor | sharing | touched-by" 91 << endl; 92 93 Histogram remaining_records(1, 100); 94 Histogram all_records(1, 100); 95 Histogram remaining_records_log(-1); 96 Histogram all_records_log(-1); 97 98 // Allows us to track how many lines where touched by n processors 99 std::vector<int64> m_touched_vec; 100 std::vector<int64> m_touched_weighted_vec; 101 m_touched_vec.resize(num_of_sequencers+1); 102 m_touched_weighted_vec.resize(num_of_sequencers+1); 103 for (int i = 0; i < m_touched_vec.size(); i++) { 104 m_touched_vec[i] = 0; 105 m_touched_weighted_vec[i] = 0; 106 } 107 108 int counter = 0; 109 while (heap.size() > 0 && counter < records_printed) {
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96 AccessTraceForAddress* record = heap.extractMin();
| 110 const AccessTraceForAddress* record = heap.extractMin();
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97 double percent = 100.0 * (record->getTotal() / double(misses)); 98 out << description << " | " << percent << " % " << *record << endl; 99 all_records.add(record->getTotal()); 100 all_records_log.add(record->getTotal()); 101 counter++; 102 m_touched_vec[record->getTouchedBy()]++; 103 m_touched_weighted_vec[record->getTouchedBy()] += record->getTotal(); 104 } 105 106 while (heap.size() > 0) {
| 111 double percent = 100.0 * (record->getTotal() / double(misses)); 112 out << description << " | " << percent << " % " << *record << endl; 113 all_records.add(record->getTotal()); 114 all_records_log.add(record->getTotal()); 115 counter++; 116 m_touched_vec[record->getTouchedBy()]++; 117 m_touched_weighted_vec[record->getTouchedBy()] += record->getTotal(); 118 } 119 120 while (heap.size() > 0) {
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107 AccessTraceForAddress* record = heap.extractMin();
| 121 const AccessTraceForAddress* record = heap.extractMin();
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108 all_records.add(record->getTotal()); 109 remaining_records.add(record->getTotal()); 110 all_records_log.add(record->getTotal()); 111 remaining_records_log.add(record->getTotal()); 112 m_touched_vec[record->getTouchedBy()]++; 113 m_touched_weighted_vec[record->getTouchedBy()] += record->getTotal(); 114 } 115 out << endl; 116 out << "all_records_" << description << ": " 117 << all_records << endl 118 << "all_records_log_" << description << ": " 119 << all_records_log << endl 120 << "remaining_records_" << description << ": " 121 << remaining_records << endl 122 << "remaining_records_log_" << description << ": " 123 << remaining_records_log << endl 124 << "touched_by_" << description << ": " 125 << m_touched_vec << endl 126 << "touched_by_weighted_" << description << ": " 127 << m_touched_weighted_vec << endl 128 << endl; 129} 130 131AddressProfiler::AddressProfiler(int num_of_sequencers) 132{
| 122 all_records.add(record->getTotal()); 123 remaining_records.add(record->getTotal()); 124 all_records_log.add(record->getTotal()); 125 remaining_records_log.add(record->getTotal()); 126 m_touched_vec[record->getTouchedBy()]++; 127 m_touched_weighted_vec[record->getTouchedBy()] += record->getTotal(); 128 } 129 out << endl; 130 out << "all_records_" << description << ": " 131 << all_records << endl 132 << "all_records_log_" << description << ": " 133 << all_records_log << endl 134 << "remaining_records_" << description << ": " 135 << remaining_records << endl 136 << "remaining_records_log_" << description << ": " 137 << remaining_records_log << endl 138 << "touched_by_" << description << ": " 139 << m_touched_vec << endl 140 << "touched_by_weighted_" << description << ": " 141 << m_touched_weighted_vec << endl 142 << endl; 143} 144 145AddressProfiler::AddressProfiler(int num_of_sequencers) 146{
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133 m_dataAccessTrace = new AddressMap; 134 m_macroBlockAccessTrace = new AddressMap; 135 m_programCounterAccessTrace = new AddressMap; 136 m_retryProfileMap = new AddressMap;
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137 m_num_of_sequencers = num_of_sequencers; 138 clearStats(); 139} 140 141AddressProfiler::~AddressProfiler() 142{
| 147 m_num_of_sequencers = num_of_sequencers; 148 clearStats(); 149} 150 151AddressProfiler::~AddressProfiler() 152{
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143 delete m_dataAccessTrace; 144 delete m_macroBlockAccessTrace; 145 delete m_programCounterAccessTrace; 146 delete m_retryProfileMap;
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147} 148 149void 150AddressProfiler::setHotLines(bool hot_lines) 151{ 152 m_hot_lines = hot_lines; 153} 154 155void 156AddressProfiler::setAllInstructions(bool all_instructions) 157{ 158 m_all_instructions = all_instructions; 159} 160 161void 162AddressProfiler::printStats(ostream& out) const 163{ 164 if (m_hot_lines) { 165 out << endl; 166 out << "AddressProfiler Stats" << endl; 167 out << "---------------------" << endl; 168 169 out << endl; 170 out << "sharing_misses: " << m_sharing_miss_counter << endl; 171 out << "getx_sharing_histogram: " << m_getx_sharing_histogram << endl; 172 out << "gets_sharing_histogram: " << m_gets_sharing_histogram << endl; 173 174 out << endl; 175 out << "Hot Data Blocks" << endl; 176 out << "---------------" << endl; 177 out << endl; 178 printSorted(out, m_num_of_sequencers, m_dataAccessTrace, 179 "block_address"); 180 181 out << endl; 182 out << "Hot MacroData Blocks" << endl; 183 out << "--------------------" << endl; 184 out << endl; 185 printSorted(out, m_num_of_sequencers, m_macroBlockAccessTrace, 186 "macroblock_address"); 187 188 out << "Hot Instructions" << endl; 189 out << "----------------" << endl; 190 out << endl; 191 printSorted(out, m_num_of_sequencers, m_programCounterAccessTrace, 192 "pc_address"); 193 } 194 195 if (m_all_instructions) { 196 out << endl; 197 out << "All Instructions Profile:" << endl; 198 out << "-------------------------" << endl; 199 out << endl; 200 printSorted(out, m_num_of_sequencers, m_programCounterAccessTrace, 201 "pc_address"); 202 out << endl; 203 } 204 205 if (m_retryProfileHisto.size() > 0) { 206 out << "Retry Profile" << endl; 207 out << "-------------" << endl; 208 out << endl; 209 out << "retry_histogram_absolute: " << m_retryProfileHisto << endl; 210 out << "retry_histogram_write: " << m_retryProfileHistoWrite << endl; 211 out << "retry_histogram_read: " << m_retryProfileHistoRead << endl; 212 213 out << "retry_histogram_percent: "; 214 m_retryProfileHisto.printPercent(out); 215 out << endl; 216 217 printSorted(out, m_num_of_sequencers, m_retryProfileMap, 218 "block_address"); 219 out << endl; 220 } 221} 222 223void 224AddressProfiler::clearStats() 225{ 226 // Clear the maps 227 m_sharing_miss_counter = 0;
| 153} 154 155void 156AddressProfiler::setHotLines(bool hot_lines) 157{ 158 m_hot_lines = hot_lines; 159} 160 161void 162AddressProfiler::setAllInstructions(bool all_instructions) 163{ 164 m_all_instructions = all_instructions; 165} 166 167void 168AddressProfiler::printStats(ostream& out) const 169{ 170 if (m_hot_lines) { 171 out << endl; 172 out << "AddressProfiler Stats" << endl; 173 out << "---------------------" << endl; 174 175 out << endl; 176 out << "sharing_misses: " << m_sharing_miss_counter << endl; 177 out << "getx_sharing_histogram: " << m_getx_sharing_histogram << endl; 178 out << "gets_sharing_histogram: " << m_gets_sharing_histogram << endl; 179 180 out << endl; 181 out << "Hot Data Blocks" << endl; 182 out << "---------------" << endl; 183 out << endl; 184 printSorted(out, m_num_of_sequencers, m_dataAccessTrace, 185 "block_address"); 186 187 out << endl; 188 out << "Hot MacroData Blocks" << endl; 189 out << "--------------------" << endl; 190 out << endl; 191 printSorted(out, m_num_of_sequencers, m_macroBlockAccessTrace, 192 "macroblock_address"); 193 194 out << "Hot Instructions" << endl; 195 out << "----------------" << endl; 196 out << endl; 197 printSorted(out, m_num_of_sequencers, m_programCounterAccessTrace, 198 "pc_address"); 199 } 200 201 if (m_all_instructions) { 202 out << endl; 203 out << "All Instructions Profile:" << endl; 204 out << "-------------------------" << endl; 205 out << endl; 206 printSorted(out, m_num_of_sequencers, m_programCounterAccessTrace, 207 "pc_address"); 208 out << endl; 209 } 210 211 if (m_retryProfileHisto.size() > 0) { 212 out << "Retry Profile" << endl; 213 out << "-------------" << endl; 214 out << endl; 215 out << "retry_histogram_absolute: " << m_retryProfileHisto << endl; 216 out << "retry_histogram_write: " << m_retryProfileHistoWrite << endl; 217 out << "retry_histogram_read: " << m_retryProfileHistoRead << endl; 218 219 out << "retry_histogram_percent: "; 220 m_retryProfileHisto.printPercent(out); 221 out << endl; 222 223 printSorted(out, m_num_of_sequencers, m_retryProfileMap, 224 "block_address"); 225 out << endl; 226 } 227} 228 229void 230AddressProfiler::clearStats() 231{ 232 // Clear the maps 233 m_sharing_miss_counter = 0;
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228 m_dataAccessTrace->clear(); 229 m_macroBlockAccessTrace->clear(); 230 m_programCounterAccessTrace->clear(); 231 m_retryProfileMap->clear();
| 234 m_dataAccessTrace.clear(); 235 m_macroBlockAccessTrace.clear(); 236 m_programCounterAccessTrace.clear(); 237 m_retryProfileMap.clear();
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232 m_retryProfileHisto.clear(); 233 m_retryProfileHistoRead.clear(); 234 m_retryProfileHistoWrite.clear(); 235 m_getx_sharing_histogram.clear(); 236 m_gets_sharing_histogram.clear(); 237} 238 239void 240AddressProfiler::profileGetX(const Address& datablock, const Address& PC, 241 const Set& owner, const Set& sharers, 242 NodeID requestor) 243{ 244 Set indirection_set; 245 indirection_set.addSet(sharers); 246 indirection_set.addSet(owner); 247 indirection_set.remove(requestor); 248 int num_indirections = indirection_set.count(); 249 250 m_getx_sharing_histogram.add(num_indirections); 251 bool indirection_miss = (num_indirections > 0); 252 253 addTraceSample(datablock, PC, CacheRequestType_ST, AccessModeType(0), 254 requestor, indirection_miss); 255} 256 257void 258AddressProfiler::profileGetS(const Address& datablock, const Address& PC, 259 const Set& owner, const Set& sharers, 260 NodeID requestor) 261{ 262 Set indirection_set; 263 indirection_set.addSet(owner); 264 indirection_set.remove(requestor); 265 int num_indirections = indirection_set.count(); 266 267 m_gets_sharing_histogram.add(num_indirections); 268 bool indirection_miss = (num_indirections > 0); 269 270 addTraceSample(datablock, PC, CacheRequestType_LD, AccessModeType(0), 271 requestor, indirection_miss); 272} 273 274void 275AddressProfiler::addTraceSample(Address data_addr, Address pc_addr, 276 CacheRequestType type, 277 AccessModeType access_mode, NodeID id, 278 bool sharing_miss) 279{ 280 if (m_all_instructions) { 281 if (sharing_miss) { 282 m_sharing_miss_counter++; 283 } 284 285 // record data address trace info 286 data_addr.makeLineAddress(); 287 lookupTraceForAddress(data_addr, m_dataAccessTrace). 288 update(type, access_mode, id, sharing_miss); 289 290 // record macro data address trace info 291 292 // 6 for datablock, 4 to make it 16x more coarse 293 Address macro_addr(data_addr.maskLowOrderBits(10)); 294 lookupTraceForAddress(macro_addr, m_macroBlockAccessTrace). 295 update(type, access_mode, id, sharing_miss); 296 297 // record program counter address trace info 298 lookupTraceForAddress(pc_addr, m_programCounterAccessTrace). 299 update(type, access_mode, id, sharing_miss); 300 } 301 302 if (m_all_instructions) { 303 // This code is used if the address profiler is an 304 // all-instructions profiler record program counter address 305 // trace info 306 lookupTraceForAddress(pc_addr, m_programCounterAccessTrace). 307 update(type, access_mode, id, sharing_miss); 308 } 309} 310 311void 312AddressProfiler::profileRetry(const Address& data_addr, AccessType type, 313 int count) 314{ 315 m_retryProfileHisto.add(count); 316 if (type == AccessType_Read) { 317 m_retryProfileHistoRead.add(count); 318 } else { 319 m_retryProfileHistoWrite.add(count); 320 } 321 if (count > 1) { 322 lookupTraceForAddress(data_addr, m_retryProfileMap).addSample(count); 323 } 324}
| 238 m_retryProfileHisto.clear(); 239 m_retryProfileHistoRead.clear(); 240 m_retryProfileHistoWrite.clear(); 241 m_getx_sharing_histogram.clear(); 242 m_gets_sharing_histogram.clear(); 243} 244 245void 246AddressProfiler::profileGetX(const Address& datablock, const Address& PC, 247 const Set& owner, const Set& sharers, 248 NodeID requestor) 249{ 250 Set indirection_set; 251 indirection_set.addSet(sharers); 252 indirection_set.addSet(owner); 253 indirection_set.remove(requestor); 254 int num_indirections = indirection_set.count(); 255 256 m_getx_sharing_histogram.add(num_indirections); 257 bool indirection_miss = (num_indirections > 0); 258 259 addTraceSample(datablock, PC, CacheRequestType_ST, AccessModeType(0), 260 requestor, indirection_miss); 261} 262 263void 264AddressProfiler::profileGetS(const Address& datablock, const Address& PC, 265 const Set& owner, const Set& sharers, 266 NodeID requestor) 267{ 268 Set indirection_set; 269 indirection_set.addSet(owner); 270 indirection_set.remove(requestor); 271 int num_indirections = indirection_set.count(); 272 273 m_gets_sharing_histogram.add(num_indirections); 274 bool indirection_miss = (num_indirections > 0); 275 276 addTraceSample(datablock, PC, CacheRequestType_LD, AccessModeType(0), 277 requestor, indirection_miss); 278} 279 280void 281AddressProfiler::addTraceSample(Address data_addr, Address pc_addr, 282 CacheRequestType type, 283 AccessModeType access_mode, NodeID id, 284 bool sharing_miss) 285{ 286 if (m_all_instructions) { 287 if (sharing_miss) { 288 m_sharing_miss_counter++; 289 } 290 291 // record data address trace info 292 data_addr.makeLineAddress(); 293 lookupTraceForAddress(data_addr, m_dataAccessTrace). 294 update(type, access_mode, id, sharing_miss); 295 296 // record macro data address trace info 297 298 // 6 for datablock, 4 to make it 16x more coarse 299 Address macro_addr(data_addr.maskLowOrderBits(10)); 300 lookupTraceForAddress(macro_addr, m_macroBlockAccessTrace). 301 update(type, access_mode, id, sharing_miss); 302 303 // record program counter address trace info 304 lookupTraceForAddress(pc_addr, m_programCounterAccessTrace). 305 update(type, access_mode, id, sharing_miss); 306 } 307 308 if (m_all_instructions) { 309 // This code is used if the address profiler is an 310 // all-instructions profiler record program counter address 311 // trace info 312 lookupTraceForAddress(pc_addr, m_programCounterAccessTrace). 313 update(type, access_mode, id, sharing_miss); 314 } 315} 316 317void 318AddressProfiler::profileRetry(const Address& data_addr, AccessType type, 319 int count) 320{ 321 m_retryProfileHisto.add(count); 322 if (type == AccessType_Read) { 323 m_retryProfileHistoRead.add(count); 324 } else { 325 m_retryProfileHistoWrite.add(count); 326 } 327 if (count > 1) { 328 lookupTraceForAddress(data_addr, m_retryProfileMap).addSample(count); 329 } 330}
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