sandeep-krishnamurthy commented on a change in pull request #14665:
[performance] Avoid uneccesary vector copies in imperative_utils.cc
URL: https://github.com/apache/incubator-mxnet/pull/14665#discussion_r275956898
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File path: src/imperative/imperative_utils.cc
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@@ -20,62 +20,61 @@
#include "./imperative_utils.h"
#include "./cached_op.h"
-namespace mxnet {
-namespace imperative {
+namespace {
-inline std::vector<NDArray*> NodeInputs(const nnvm::IndexedGraph& idx,
Review comment:
Can we measure the impact here? Because this logic is part of core engine
and gets exposed to every job, I was wondering if it would be good to measure
the performance impact.
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