Improve Fused8BitRowwiseQuantizedSBFloatToFloatOrHalfNeon by 2%-10% #3879
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Summary: Improve pointer handling, which resulted in fewer instructions being emmitted. Benchmark has been tweaked to run many iterations, results variance has decreased. Throughput has shown to slightly increase on average: before: rows, cols, elems_per_usec, GB/Sec 100, 16, 284.98, 36.48 100, 64, 343.60, 43.98 100, 128, 345.09, 44.17 100, 256, 349.13, 44.69 100, 512, 359.58, 46.03 100, 1024, 363.10, 46.48 100, 2048, 361.29, 46.24 120, 16, 255.53, 32.71 120, 64, 328.49, 42.05 120, 128, 336.15, 43.03 120, 256, 341.72, 43.74 120, 512, 346.44, 44.34 120, 1024, 353.13, 45.20 120, 2048, 352.42, 45.11 1000, 16, 285.37, 36.53 1000, 64, 351.33, 44.97 1000, 128, 358.20, 45.85 1000, 256, 356.01, 45.57 1000, 512, 330.18, 42.26 1000, 1024, 296.49, 37.95 1000, 2048, 276.04, 35.33 after: rows, cols, elems_per_usec, GB/Sec 100, 16, 314.54, 40.26 100, 64, 330.03, 42.24 100, 128, 343.18, 43.93 100, 256, 341.87, 43.76 100, 512, 359.40, 46.00 100, 1024, 360.88, 46.19 100, 2048, 365.71, 46.81 120, 16, 318.10, 40.72 120, 64, 337.54, 43.21 120, 128, 335.05, 42.89 120, 256, 346.33, 44.33 120, 512, 362.96, 46.46 120, 1024, 367.23, 47.01 120, 2048, 362.73, 46.43 1000, 16, 321.24, 41.12 1000, 64, 360.85, 46.19 1000, 128, 362.14, 46.35 1000, 256, 363.73, 46.56 1000, 512, 347.99, 44.54 1000, 1024, 298.69, 38.23 1000, 2048, 276.86, 35.44 Differential Revision: D71684779
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This pull request was exported from Phabricator. Differential Revision: D71684779 |
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Summary:
Improve pointer handling, which resulted in fewer instructions being emmitted.
Benchmark has been tweaked to run many iterations, results variance has decreased.
Throughput has shown to slightly increase on average:
before:
rows, cols, elems_per_usec, GB/Sec
100, 16, 284.98, 36.48
100, 64, 343.60, 43.98
100, 128, 345.09, 44.17
100, 256, 349.13, 44.69
100, 512, 359.58, 46.03
100, 1024, 363.10, 46.48
100, 2048, 361.29, 46.24
120, 16, 255.53, 32.71
120, 64, 328.49, 42.05
120, 128, 336.15, 43.03
120, 256, 341.72, 43.74
120, 512, 346.44, 44.34
120, 1024, 353.13, 45.20
120, 2048, 352.42, 45.11
1000, 16, 285.37, 36.53
1000, 64, 351.33, 44.97
1000, 128, 358.20, 45.85
1000, 256, 356.01, 45.57
1000, 512, 330.18, 42.26
1000, 1024, 296.49, 37.95
1000, 2048, 276.04, 35.33
after:
rows, cols, elems_per_usec, GB/Sec
100, 16, 314.54, 40.26
100, 64, 330.03, 42.24
100, 128, 343.18, 43.93
100, 256, 341.87, 43.76
100, 512, 359.40, 46.00
100, 1024, 360.88, 46.19
100, 2048, 365.71, 46.81
120, 16, 318.10, 40.72
120, 64, 337.54, 43.21
120, 128, 335.05, 42.89
120, 256, 346.33, 44.33
120, 512, 362.96, 46.46
120, 1024, 367.23, 47.01
120, 2048, 362.73, 46.43
1000, 16, 321.24, 41.12
1000, 64, 360.85, 46.19
1000, 128, 362.14, 46.35
1000, 256, 363.73, 46.56
1000, 512, 347.99, 44.54
1000, 1024, 298.69, 38.23
1000, 2048, 276.86, 35.44
Differential Revision: D71684779