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perf stat target: iTLB-load-misses,iTLB-loads,frontend_retired.itlb_miss,itlb.itlb_flush,itlb_misses.miss_causes_a_walk,itlb_misses.stlb_hit,itlb_misses.walk_active,itlb_misses.walk_completed,itlb_misses.walk_completed_1g,itlb_misses.walk_completed_2m_4m,itlb_misses.walk_completed_4k,itlb_misses.walk_pending
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Warming up --------------------------------------
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a.foo
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Performance counter stats for process id '30423':
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1,201 iTLB-load-misses # 2.78% of all iTLB cache hits (32.80%)
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43,205 iTLB-loads (33.07%)
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10,190 frontend_retired.itlb_miss (33.33%)
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342 itlb.itlb_flush (33.59%)
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8,999 itlb_misses.miss_causes_a_walk (33.60%)
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31,829 itlb_misses.stlb_hit (33.60%)
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260,901 itlb_misses.walk_active (33.61%)
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2,125 itlb_misses.walk_completed (33.61%)
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0 itlb_misses.walk_completed_1g (33.59%)
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99 itlb_misses.walk_completed_2m_4m (33.33%)
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1,863 itlb_misses.walk_completed_4k (33.07%)
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284,116 itlb_misses.walk_pending (32.81%)
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1.523607271 seconds time elapsed
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373.725k i/s
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Calculating -------------------------------------
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trunk trunk,--jit export-big-func export-big-func,--jit
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a.foo
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Performance counter stats for process id '30427':
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1,930 iTLB-load-misses # 7.43% of all iTLB cache hits (33.06%)
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25,984 iTLB-loads (33.19%)
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11,845 frontend_retired.itlb_miss (33.32%)
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598 itlb.itlb_flush (33.45%)
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4,206 itlb_misses.miss_causes_a_walk (33.53%)
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23,874 itlb_misses.stlb_hit (33.53%)
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160,610 itlb_misses.walk_active (33.53%)
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1,802 itlb_misses.walk_completed (33.53%)
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0 itlb_misses.walk_completed_1g (33.41%)
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42 itlb_misses.walk_completed_2m_4m (33.28%)
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3,025 itlb_misses.walk_completed_4k (33.15%)
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311,032 itlb_misses.walk_pending (33.02%)
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3.102120599 seconds time elapsed
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363.592k
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Performance counter stats for process id '30431':
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900,188 iTLB-load-misses # 0.47% of all iTLB cache hits (33.37%)
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190,714,170 iTLB-loads (33.43%)
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101,020,073 frontend_retired.itlb_miss (33.43%)
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706 itlb.itlb_flush (33.43%)
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2,218,994 itlb_misses.miss_causes_a_walk (33.34%)
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190,904,130 itlb_misses.stlb_hit (33.29%)
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57,968,163 itlb_misses.walk_active (33.29%)
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922,809 itlb_misses.walk_completed (33.29%)
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0 itlb_misses.walk_completed_1g (33.29%)
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51 itlb_misses.walk_completed_2m_4m (33.29%)
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925,411 itlb_misses.walk_completed_4k (33.29%)
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60,061,534 itlb_misses.walk_pending (33.29%)
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4.422176068 seconds time elapsed
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252.761k
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Performance counter stats for process id '31398':
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1,283 iTLB-load-misses # 5.68% of all iTLB cache hits (33.19%)
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22,594 iTLB-loads (33.32%)
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11,775 frontend_retired.itlb_miss (33.45%)
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575 itlb.itlb_flush (33.59%)
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7,298 itlb_misses.miss_causes_a_walk (33.67%)
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22,297 itlb_misses.stlb_hit (33.54%)
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373,497 itlb_misses.walk_active (33.41%)
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2,149 itlb_misses.walk_completed (33.27%)
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0 itlb_misses.walk_completed_1g (33.14%)
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69 itlb_misses.walk_completed_2m_4m (33.14%)
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1,165 itlb_misses.walk_completed_4k (33.14%)
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262,384 itlb_misses.walk_pending (33.14%)
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3.041640202 seconds time elapsed
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370.871k
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Performance counter stats for process id '31403':
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1,792,580 iTLB-load-misses # 446.25% of all iTLB cache hits (33.39%)
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401,699 iTLB-loads (33.47%)
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15,412 frontend_retired.itlb_miss (33.47%)
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451 itlb.itlb_flush (33.47%)
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2,623,341 itlb_misses.miss_causes_a_walk (33.35%)
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389,734 itlb_misses.stlb_hit (33.27%)
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71,711,940 itlb_misses.walk_active (33.27%)
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1,848,936 itlb_misses.walk_completed (33.27%)
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0 itlb_misses.walk_completed_1g (33.27%)
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9 itlb_misses.walk_completed_2m_4m (33.27%)
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1,857,761 itlb_misses.walk_completed_4k (33.27%)
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74,351,832 itlb_misses.walk_pending (33.27%)
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3.078224154 seconds time elapsed
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364.262k i/s - 1.121M times in 3.083605s 4.435711s 3.023082s 3.077932s
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Comparison:
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a.foo
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export-big-func: 370871.2 i/s
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export-big-func,--jit: 364262.1 i/s - 1.02x slower
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trunk: 363591.9 i/s - 1.02x slower
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trunk,--jit: 252760.9 i/s - 1.47x slower
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