azai91 commented on issue #12746: Add env flag to disable MKLDNN cache (MXNET_MKLDNN_CACHE_ENABLED) URL: https://github.com/apache/incubator-mxnet/pull/12746#issuecomment-438451943 I have done the following experiments and their results are below, we have to pick one of the solutions unless you have better one @ZhennanQin @TaoLv ? 1) LRU cache with performance hit of 2%. 2) Use the unordered_set that drops elements randomly. I have tested this and it does not cause regression.
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