roywei edited a comment on issue #15429: Operator Performance Regression on CPU URL: https://github.com/apache/incubator-mxnet/issues/15429#issuecomment-508644244 I have ran a search for perf regression on `broadcast_add` and there are 2 regressions between 0412-0425, 0619-0621 mxnet-mkl version | broadcast_add speed | commit| -- | --| -- 1.5.0b20190411 | 0.003 | 1.5.0b20190412 | 0.003 | 30d479feae11b04d423f2ec055d124fb6d2d5730 1.5.0b20190425 | 0.0034 | 587d480372f41b25fcbffd45ce77373ad93d41b5 1.5.0b20190426 | 0.0034 | 1.5.0b20190619 | 0.0033 | ccbbf6b4b76ea536a6583c99497c83b65a20817b 1.5.0b20190620 | 0.0035 | 2de0db0911f2e71728fa85ab342bd99a10974fc9 1.5.0b20190621 | 0.0037 | 8b5f376d17b644385706016caf8b1e58e95d96df
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