Vikas89 commented on issue #13602: Fix for import mxnet taking long time if multiple process launched URL: https://github.com/apache/incubator-mxnet/pull/13602#issuecomment-446335365 > Still not very sure about the mechanism of operator tuning and how it contributes to other operator computation. Do we have any performance comparison between w/ and w/o operator tuning? Previously, I set USE_OPERATOR_TUNING=0 when built MXNet to avoid import hang. Followed the tips here: #10560 (comment) Good point. The operator tuning code was introduced by this PR: https://github.com/apache/incubator-mxnet/pull/8686 , I don't see any numbers for performance comparison with/without tuning code. I think you should start a discussion in dev thread and may be we would able to find some relevant historical info and then decide whether operator tuning should be enabled as default or not. Regarding this PR, it is optimizing for the cases where OPERATOR_TUNING is enabled by default and unblocking 4.0 release.
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