qbenchmarkperfevents.cpp

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/home/qt/qt5_coco/qt5/qtbase/src/testlib/qbenchmarkperfevents.cpp

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Preprocessed file

Line Source Count

1 -

2 -

3 -

4 -

5 -

6 -

7 -

8 -

9 -

10 -

11 -

12 -

13 -

14 -

15 -

16 static perf_event_attr attr; -

17 -

18 static void initPerf() -

19 { -

20 static bool done; -

if (!done

!done	Description
TRUE	never evaluated
FALSE	never evaluated

) {

22 memset(&attr, 0, sizeof attr); -

23 attr.size = sizeof attr; -

24 attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING; -

25 attr.disabled = true; -

26 attr.inherit = true; -

27 attr.pinned = true; -

28 attr.inherit_stat = true; -

29 attr.task = true; -

30 -

31 -

32 attr.type = PERF_TYPE_HARDWARE; -

33 attr.config = PERF_COUNT_HW_CPU_CYCLES; -

34 -

35 done = true; -

}

never executed: end of block

}

never executed: end of block

38 static int perf_event_open(perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags) -

39 { -

40 -

return

never executed: return syscall(298, attr, pid, cpu, group_fd, flags);

syscall(298, attr, pid, cpu, group_fd, flags);

never executed: return syscall(298, attr, pid, cpu, group_fd, flags);

42 } -

43 -

44 bool QBenchmarkPerfEventsMeasurer::isAvailable() -

45 { -

46 -

47 -

return

never executed: return perf_event_open(0, 0, 0, 0, 0) == -1 && (*__errno_location ()) != 38;

perf_event_open(0, 0, 0, 0, 0) == -1

perf_event_ope...0, 0, 0) == -1	Description
TRUE	never evaluated
FALSE	never evaluated

&& (*

(*__errno_location ()) != 38	Description
TRUE	never evaluated
FALSE	never evaluated

__errno_location ()) != 38

(*__errno_location ()) != 38	Description
TRUE	never evaluated
FALSE	never evaluated

;

never executed: return perf_event_open(0, 0, 0, 0, 0) == -1 && (*__errno_location ()) != 38;

49 } -

50 struct Events { -

51 unsigned offset; -

52 quint32 type; -

53 quint64 event_id; -

54 QTest::QBenchmarkMetric metric; -

55 }; -

56 -

57 -

58 static const char eventlist_strings[] = -

59 "alignment-faults\0" -

60 "branch-instructions\0" -

61 "branch-load-misses\0" -

62 "branch-loads\0" -

63 "branch-mispredicts\0" -

64 "branch-misses\0" -

65 "branch-predicts\0" -

66 "branch-read-misses\0" -

67 "branch-reads\0" -

68 "branches\0" -

69 "bus-cycles\0" -

70 "cache-misses\0" -

71 "cache-references\0" -

72 "context-switches\0" -

73 "cpu-clock\0" -

74 "cpu-cycles\0" -

75 "cpu-migrations\0" -

76 "cs\0" -

77 "cycles\0" -

78 "emulation-faults\0" -

79 "faults\0" -

80 "idle-cycles-backend\0" -

81 "idle-cycles-frontend\0" -

82 "instructions\0" -

83 "l1d-cache-load-misses\0" -

84 "l1d-cache-loads\0" -

85 "l1d-cache-prefetch-misses\0" -

86 "l1d-cache-prefetches\0" -

87 "l1d-cache-read-misses\0" -

88 "l1d-cache-reads\0" -

89 "l1d-cache-store-misses\0" -

90 "l1d-cache-stores\0" -

91 "l1d-cache-write-misses\0" -

92 "l1d-cache-writes\0" -

93 "l1d-load-misses\0" -

94 "l1d-loads\0" -

95 "l1d-prefetch-misses\0" -

96 "l1d-prefetches\0" -

97 "l1d-read-misses\0" -

98 "l1d-reads\0" -

99 "l1d-store-misses\0" -

100 "l1d-stores\0" -

101 "l1d-write-misses\0" -

102 "l1d-writes\0" -

103 "l1i-cache-load-misses\0" -

104 "l1i-cache-loads\0" -

105 "l1i-cache-prefetch-misses\0" -

106 "l1i-cache-prefetches\0" -

107 "l1i-cache-read-misses\0" -

108 "l1i-cache-reads\0" -

109 "l1i-load-misses\0" -

110 "l1i-loads\0" -

111 "l1i-prefetch-misses\0" -

112 "l1i-prefetches\0" -

113 "l1i-read-misses\0" -

114 "l1i-reads\0" -

115 "llc-cache-load-misses\0" -

116 "llc-cache-loads\0" -

117 "llc-cache-prefetch-misses\0" -

118 "llc-cache-prefetches\0" -

119 "llc-cache-read-misses\0" -

120 "llc-cache-reads\0" -

121 "llc-cache-store-misses\0" -

122 "llc-cache-stores\0" -

123 "llc-cache-write-misses\0" -

124 "llc-cache-writes\0" -

125 "llc-load-misses\0" -

126 "llc-loads\0" -

127 "llc-prefetch-misses\0" -

128 "llc-prefetches\0" -

129 "llc-read-misses\0" -

130 "llc-reads\0" -

131 "llc-store-misses\0" -

132 "llc-stores\0" -

133 "llc-write-misses\0" -

134 "llc-writes\0" -

135 "major-faults\0" -

136 "migrations\0" -

137 "minor-faults\0" -

138 "page-faults\0" -

139 "stalled-cycles-backend\0" -

140 "stalled-cycles-frontend\0" -

141 "task-clock\0" -

142 "\0"; -

143 -

144 static const Events eventlist[] = { -

145 { 0, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS, QTest::AlignmentFaults }, -

146 { 17, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, QTest::BranchInstructions }, -

147 { 37, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::BranchMisses }, -

148 { 56, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::BranchInstructions }, -

149 { 69, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::BranchMisses }, -

150 { 88, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, QTest::BranchMisses }, -

151 { 102, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::BranchInstructions }, -

152 { 118, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::BranchMisses }, -

153 { 137, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::BranchInstructions }, -

154 { 150, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, QTest::BranchInstructions }, -

155 { 159, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, QTest::BusCycles }, -

156 { 170, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, QTest::CacheMisses }, -

157 { 183, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, QTest::CacheReferences }, -

158 { 200, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches }, -

159 { 217, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK, QTest::WalltimeMilliseconds }, -

160 { 227, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles }, -

161 { 238, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations }, -

162 { 253, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches }, -

163 { 256, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles }, -

164 { 263, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, QTest::EmulationFaults }, -

165 { 280, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults }, -

166 { 287, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles }, -

167 { 307, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles }, -

168 { 328, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, QTest::Instructions }, -

169 { 341, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

170 { 363, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

171 { 379, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

172 { 405, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

173 { 426, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

174 { 448, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

175 { 464, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

176 { 487, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

177 { 504, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

178 { 527, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

179 { 544, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

180 { 560, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

181 { 570, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

182 { 590, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

183 { 605, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

184 { 621, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

185 { 631, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

186 { 648, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

187 { 659, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

188 { 676, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

189 { 687, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

190 { 709, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

191 { 725, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

192 { 751, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

193 { 772, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

194 { 794, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

195 { 810, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

196 { 826, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

197 { 836, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

198 { 856, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

199 { 871, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

200 { 887, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

201 { 897, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

202 { 919, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

203 { 935, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

204 { 961, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

205 { 982, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

206 { 1004, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

207 { 1020, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

208 { 1043, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8| PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

209 { 1060, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

210 { 1083, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8| PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

211 { 1100, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

212 { 1116, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

213 { 1126, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CachePrefetches }, -

214 { 1146, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CachePrefetches }, -

215 { 1161, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheReads }, -

216 { 1177, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheReads }, -

217 { 1187, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

218 { 1204, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8| PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

219 { 1215, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16), QTest::CacheWrites }, -

220 { 1232, PERF_TYPE_HW_CACHE, (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8| PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), QTest::CacheWrites }, -

221 { 1243, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, QTest::MajorPageFaults }, -

222 { 1256, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations }, -

223 { 1267, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, QTest::MinorPageFaults }, -

224 { 1280, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults }, -

225 { 1292, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles }, -

226 { 1315, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles }, -

227 { 1339, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK, QTest::WalltimeMilliseconds }, -

228 { 0, PERF_TYPE_MAX, 0, QTest::Events } -

229 }; -

230 -

231 -

232 QTest::QBenchmarkMetric QBenchmarkPerfEventsMeasurer::metricForEvent(quint32 type, quint64 event_id) -

233 { -

234 const Events *ptr = eventlist; -

235

for ( ; ptr->type != PERF_TYPE_MAX

ptr->type != PERF_TYPE_MAX	Description
TRUE	never evaluated
FALSE	never evaluated

; ++ptr) {

236

if (ptr->type == type

ptr->type == type	Description
TRUE	never evaluated
FALSE	never evaluated

&& ptr->event_id == event_id

ptr->event_id == event_id	Description
TRUE	never evaluated
FALSE	never evaluated

)

237

return

never executed: return ptr->metric;

ptr->metric;

never executed: return ptr->metric;

238

}

never executed: end of block

239

return

never executed: return QTest::Events;

QTest::Events;

never executed: return QTest::Events;

240 } -

241 -

242 void QBenchmarkPerfEventsMeasurer::setCounter(const char *name) -

243 { -

244 initPerf(); -

245 const char *colon = strchr(name, ':'); -

246

int n = colon

colon	Description
TRUE	never evaluated
FALSE	never evaluated

? colon - name : strlen(name);

247 const Events *ptr = eventlist; -

248

for ( ; ptr->type != PERF_TYPE_MAX

ptr->type != PERF_TYPE_MAX	Description
TRUE	never evaluated
FALSE	never evaluated

; ++ptr) {

249 int c = strncmp(name, eventlist_strings + ptr->offset, n); -

250

if (c == 0

c == 0	Description
TRUE	never evaluated
FALSE	never evaluated

)

251

break;

never executed: break;

252

if (c < 0

c < 0	Description
TRUE	never evaluated
FALSE	never evaluated

) {

253 fprintf(stderr, "ERROR: Performance counter type '%s' is unknown\n", name); -

254

exit(1);

never executed: exit(1);

255 } -

256

}

never executed: end of block

257 -

258 attr.type = ptr->type; -

259 attr.config = ptr->event_id; -

260 -

261 -

262

if (!colon

!colon	Description
TRUE	never evaluated
FALSE	never evaluated

)

263

return;

never executed: return;

264

while (*++

*++colon	Description
TRUE	never evaluated
FALSE	never evaluated

colon

*++colon	Description
TRUE	never evaluated
FALSE	never evaluated

) {

265 switch (*colon) { -

266

case

never executed: case 'u':

'u':

never executed: case 'u':

267 attr.exclude_user = true; -

268

break;

never executed: break;

269

case

never executed: case 'k':

'k':

never executed: case 'k':

270 attr.exclude_kernel = true; -

271

break;

never executed: break;

272

case

never executed: case 'h':

'h':

never executed: case 'h':

273 attr.exclude_hv = true; -

274

break;

never executed: break;

275

case

never executed: case 'G':

'G':

never executed: case 'G':

276 attr.exclude_guest = true; -

277

break;

never executed: break;

278

case

never executed: case 'H':

'H':

never executed: case 'H':

279 attr.exclude_host = true; -

280

break;

never executed: break;

281

default

never executed: default:

282 fprintf(stderr, "ERROR: Unknown attribute '%c'\n", *colon); -

283

exit(1);

never executed: exit(1);

284 } -

285 } -

286

}

never executed: end of block

287 -

288 void QBenchmarkPerfEventsMeasurer::listCounters() -

289 { -

290

if (!isAvailable()

!isAvailable()	Description
TRUE	never evaluated
FALSE	never evaluated

) {

291 printf("Performance counters are not available on this system\n"); -

292

return;

never executed: return;

293 } -

294 -

295 printf("The following performance counters are available:\n"); -

296 const Events *ptr = eventlist; -

297

for ( ; ptr->type != PERF_TYPE_MAX

ptr->type != PERF_TYPE_MAX	Description
TRUE	never evaluated
FALSE	never evaluated

; ++ptr) {

298 printf(" %-30s [%s]\n", eventlist_strings + ptr->offset, -

299 ptr->type == PERF_TYPE_HARDWARE ? "hardware" : -

300 ptr->type == PERF_TYPE_SOFTWARE ? "software" : -

301 ptr->type == PERF_TYPE_HW_CACHE ? "cache" : "other"); -

302

}

never executed: end of block

303 -

304 printf("\nAttributes can be specified by adding a colon and the following:\n" -

305 " u - exclude measuring in the userspace\n" -

306 " k - exclude measuring in kernel mode\n" -

307 " h - exclude measuring in the hypervisor\n" -

308 " G - exclude measuring when running virtualized (guest VM)\n" -

309 " H - exclude measuring when running non-virtualized (host system)\n" -

310 "Attributes can be combined, for example: -perfcounter branch-mispredicts:kh\n"); -

311

}

never executed: end of block

312 -

313 QBenchmarkPerfEventsMeasurer::QBenchmarkPerfEventsMeasurer() -

314 : fd(-1) -

315 { -

316

}

never executed: end of block

317 -

318 QBenchmarkPerfEventsMeasurer::~QBenchmarkPerfEventsMeasurer() -

319 { -

320 qt_safe_close(fd); -

321

}

never executed: end of block

322 -

323 void QBenchmarkPerfEventsMeasurer::init() -

324 { -

325 } -

326 -

327 void QBenchmarkPerfEventsMeasurer::start() -

328 { -

329 -

330 initPerf(); -

331

if (fd == -1

fd == -1	Description
TRUE	never evaluated
FALSE	never evaluated

) {

332 -

333 -

334 -

335 -

336 fd = perf_event_open(&attr, 0, -1, -1, 0); -

337

if (fd == -1

fd == -1	Description
TRUE	never evaluated
FALSE	never evaluated

) {

338 perror("QBenchmarkPerfEventsMeasurer::start: perf_event_open"); -

339

exit(1);

never executed: exit(1);

340 } else { -

341 ::fcntl(fd, 2, 1); -

342

}

never executed: end of block

343 } -

344 -

345 -

346 ::ioctl(fd, (((0U) << (((0 +8)+8)+14)) | ((('$')) << (0 +8)) | (((3)) << 0) | ((0) << ((0 +8)+8)))); -

347 ::ioctl(fd, (((0U) << (((0 +8)+8)+14)) | ((('$')) << (0 +8)) | (((0)) << 0) | ((0) << ((0 +8)+8)))); -

348

}

never executed: end of block

349 -

350 qint64 QBenchmarkPerfEventsMeasurer::checkpoint() -

351 { -

352 ::ioctl(fd, (((0U) << (((0 +8)+8)+14)) | ((('$')) << (0 +8)) | (((1)) << 0) | ((0) << ((0 +8)+8)))); -

353 qint64 value = readValue(); -

354 ::ioctl(fd, (((0U) << (((0 +8)+8)+14)) | ((('$')) << (0 +8)) | (((0)) << 0) | ((0) << ((0 +8)+8)))); -

355

return

never executed: return value;

value;

never executed: return value;

356 } -

357 -

358 qint64 QBenchmarkPerfEventsMeasurer::stop() -

359 { -

360 -

361 ::ioctl(fd, (((0U) << (((0 +8)+8)+14)) | ((('$')) << (0 +8)) | (((1)) << 0) | ((0) << ((0 +8)+8)))); -

362

return

never executed: return readValue();

readValue();

never executed: return readValue();

363 } -

364 -

365 bool QBenchmarkPerfEventsMeasurer::isMeasurementAccepted(qint64) -

366 { -

367

return

never executed: return true;

true;

never executed: return true;

368 } -

369 -

370 int QBenchmarkPerfEventsMeasurer::adjustIterationCount(int) -

371 { -

372

return

never executed: return 1;

373 } -

374 -

375 int QBenchmarkPerfEventsMeasurer::adjustMedianCount(int) -

376 { -

377

return

never executed: return 1;

378 } -

379 -

380 QTest::QBenchmarkMetric QBenchmarkPerfEventsMeasurer::metricType() -

381 { -

382

return

never executed: return metricForEvent(attr.type, attr.config);

metricForEvent(attr.type, attr.config);

never executed: return metricForEvent(attr.type, attr.config);

383 } -

384 -

385 static quint64 rawReadValue(int fd) -

386 { -

387 struct read_format { -

388 quint64 value; -

389 quint64 time_enabled; -

390 quint64 time_running; -

391 } results; -

392 -

393 size_t nread = 0; -

394

while (nread < sizeof results

nread < sizeof results	Description
TRUE	never evaluated
FALSE	never evaluated

) {

395 char *ptr = reinterpret_cast<char *>(&results); -

396 qint64 r = qt_safe_read(fd, ptr + nread, sizeof results - nread); -

397

if (r == -1

r == -1	Description
TRUE	never evaluated
FALSE	never evaluated

) {

398 perror("QBenchmarkPerfEventsMeasurer::readValue: reading the results"); -

399

exit(1);

never executed: exit(1);

400 } -

401 nread += quint64(r); -

402

}

never executed: end of block

403 -

404

if (results.time_running == results.time_enabled

results.time_r...s.time_enabled	Description
TRUE	never evaluated
FALSE	never evaluated

)

405

return

never executed: return results.value;

results.value;

never executed: return results.value;

406 -

407 -

408

return

never executed: return results.value * (double(results.time_running) / double(results.time_enabled));

results.value * (double(results.time_running) / double(results.time_enabled));

never executed: return results.value * (double(results.time_running) / double(results.time_enabled));

409 } -

410 -

411 qint64 QBenchmarkPerfEventsMeasurer::readValue() -

412 { -

413 quint64 raw = rawReadValue(fd); -

414

if (metricType() == QTest::WalltimeMilliseconds

metricType() =...meMilliseconds	Description
TRUE	never evaluated
FALSE	never evaluated

) {

415 -

416

return

never executed: return raw / 1000000;

raw / 1000000;

never executed: return raw / 1000000;

417 } -

418

return

never executed: return raw;

raw;

never executed: return raw;

419 } -

420 -

421 -

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