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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2018/05/01 19:03:10 UTC

[GitHub] leezu opened a new pull request #10768: Use numpy in RandomSampler

leezu opened a new pull request #10768: Use numpy in RandomSampler
URL: https://github.com/apache/incubator-mxnet/pull/10768
 
 
   Significant speedup for large datasets:
   
   In [2]: %timeit current_sample(1529*8192)
   12.3 s ± 721 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
   
   In [3]: %timeit np_sample(1529*8192)
   641 ms ± 6.7 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

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