diff options
| author |  Derek Murray <mrry@google.com> | 2017-06-05 10:47:38 -0700 |
|---|---|---|
| committer |  TensorFlower Gardener <gardener@tensorflow.org> | 2017-06-05 10:51:14 -0700 |
| commit | 9f932e6ce6061d251ed8e6b038fe3864a9b4d07a (patch) | |
| tree | 3f2615800d119355b7f88df43ab0f5be0254ff7d /tensorflow/core/kernels/sendrecv_ops.h | |
| parent | cc2dd4ac8538045e94e3f8fe4fb1c532f67c1844 (diff) | |
Avoid parsing a rendezvous key for Send/Recv ops outside a loop.
For such ops, the rendezvous key will be constant, because
`ctx->frame_iter()` will always evaluate to `{0, 0}`. Benchmarking
reveals that this can save between 1 and 2 microseconds per Send or
Recv op execution. The optimization applies to all cross-process,
inter-device, and intra-device (host-to/from-device memory) Send/Recv
ops.
PiperOrigin-RevId: 158032522
Diffstat (limited to 'tensorflow/core/kernels/sendrecv_ops.h')
| -rw-r--r-- | tensorflow/core/kernels/sendrecv_ops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tensorflow/core/kernels/sendrecv_ops.h b/tensorflow/core/kernels/sendrecv_ops.h index 6e91422682..67867e3308 100644 --- a/tensorflow/core/kernels/sendrecv_ops.h +++ b/tensorflow/core/kernels/sendrecv_ops.h @@ -28,6 +28,7 @@ class SendOp : public OpKernel { private: string key_prefix_; + Rendezvous::ParsedKey parsed_key_; TF_DISALLOW_COPY_AND_ASSIGN(SendOp); }; @@ -39,6 +40,7 @@ class RecvOp : public AsyncOpKernel { private: string key_prefix_; + Rendezvous::ParsedKey parsed_key_; TF_DISALLOW_COPY_AND_ASSIGN(RecvOp); }; |