diff options
author | Andrew Harp <andrewharp@google.com> | 2017-01-03 16:20:40 -0800 |
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committer | TensorFlower Gardener <gardener@tensorflow.org> | 2017-01-03 16:28:45 -0800 |
commit | 109c03d94b50d7da10fa0ccefab8110072f8e583 (patch) | |
tree | d32097747cff73b19a6750225339f4c4261a3bfe /tensorflow/examples/android | |
parent | 35f8b1fe2c097ce97b5b465a67f312e92a62f162 (diff) |
Android: add Timer utility class for measuring cpu and wall time.
Change: 143498460
Diffstat (limited to 'tensorflow/examples/android')
-rw-r--r-- | tensorflow/examples/android/src/org/tensorflow/demo/env/SplitTimer.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tensorflow/examples/android/src/org/tensorflow/demo/env/SplitTimer.java b/tensorflow/examples/android/src/org/tensorflow/demo/env/SplitTimer.java new file mode 100644 index 0000000000..459b0a0d4d --- /dev/null +++ b/tensorflow/examples/android/src/org/tensorflow/demo/env/SplitTimer.java @@ -0,0 +1,50 @@ +/* Copyright 2016 The TensorFlow Authors. All Rights Reserved. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +==============================================================================*/ + +package org.tensorflow.demo.env; + +import android.os.SystemClock; + +/** + * A simple utility timer for measuring CPU time and wall-clock splits. + */ +public class SplitTimer { + private final Logger logger; + + private long lastWallTime; + private long lastCpuTime; + + public SplitTimer(final String name) { + logger = new Logger(name); + newSplit(); + } + + public void newSplit() { + lastWallTime = SystemClock.uptimeMillis(); + lastCpuTime = SystemClock.currentThreadTimeMillis(); + } + + public void endSplit(final String splitName) { + final long currWallTime = SystemClock.uptimeMillis(); + final long currCpuTime = SystemClock.currentThreadTimeMillis(); + + logger.i( + "%s: cpu=%dms wall=%dms", + splitName, currCpuTime - lastCpuTime, currWallTime - lastWallTime); + + lastWallTime = currWallTime; + lastCpuTime = currCpuTime; + } +} |