From 0411ed137169c436f55cd494d0d6483766d0df85 Mon Sep 17 00:00:00 2001
From: Vladimir Mandic <mandic00@live.com>
Date: Sat, 17 Oct 2020 11:38:24 -0400
Subject: [PATCH] parallelized agegender operations

---
 README.md    | 17 ++++++++++-------
 src/index.js | 22 ++++++++++++++++------
 2 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index eda782d2..bb1a62db 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ There are multiple ways to use `Human` library, pick one that suits you:
 - `dist/human.esm-nobundle.js`: ESM format non-minified bundle without TFJS for Browsers
 - `dist/human.cjs`: CommonJS format non-minified bundle without TFJS for NodeJS
 
-All versions include `sourcemap`
+All versions include `sourcemap` and build `manifest`
 
 Defaults:
 ```json
@@ -348,12 +348,15 @@ result = {
     }
   ],
   performance = {  // performance data of last execution for each module measuredin miliseconds
-    body,
-    hand,
-    face,
-    agegender,
-    emotion,
-    total,
+    config,        // time to parse configuration
+    load,          // time to load models
+    sanity,        // time for input verification
+    body,          // model time
+    hand,          // model time
+    face,          // model time
+    agegender,     // model time
+    emotion,       // model time
+    total,         // end to end time
   }
 }
 ```
diff --git a/src/index.js b/src/index.js
index a8c41cd3..12e81434 100644
--- a/src/index.js
+++ b/src/index.js
@@ -89,36 +89,46 @@ async function load(userConfig) {
 
 async function detect(input, userConfig = {}) {
   state = 'config';
+  const perf = {};
+  let timeStamp;
+
+  timeStamp = now();
   config = mergeDeep(defaults, userConfig);
+  perf.config = Math.trunc(now() - timeStamp);
 
   // sanity checks
+  timeStamp = now();
   state = 'check';
   const error = sanity(input);
   if (error) {
     log(error, input);
     return { error };
   }
+  perf.sanity = Math.trunc(now() - timeStamp);
 
   // eslint-disable-next-line no-async-promise-executor
   return new Promise(async (resolve) => {
+    const timeStart = now();
+
     // check number of loaded models
     const loadedModels = Object.values(models).filter((a) => a).length;
     if (loadedModels === 0) log('Human library starting');
 
     // configure backend
+    timeStamp = now();
     if (tf.getBackend() !== config.backend) {
       state = 'backend';
       log('Human library setting backend:', config.backend);
       await tf.setBackend(config.backend);
       await tf.ready();
     }
+    perf.body = Math.trunc(now() - timeStamp);
 
     // load models if enabled
+    timeStamp = now();
     state = 'load';
     await load();
-
-    const perf = {};
-    let timeStamp;
+    perf.load = Math.trunc(now() - timeStamp);
 
     if (config.scoped) tf.engine().startScope();
 
@@ -164,8 +174,9 @@ async function detect(input, userConfig = {}) {
         timeStamp = now();
         const emotionData = config.face.emotion.enabled ? await emotion.predict(face.image, config) : {};
         perf.emotion = Math.trunc(now() - timeStamp);
+
+        // dont need face anymore
         face.image.dispose();
-        delete face.image;
         // calculate iris distance
         // iris: array[ bottom, left, top, right, center ]
         const iris = (face.annotations.leftEyeIris && face.annotations.rightEyeIris)
@@ -191,8 +202,7 @@ async function detect(input, userConfig = {}) {
     if (config.scoped) tf.engine().endScope();
     analyze('End Scope:');
 
-    // combine and return results
-    perf.total = Object.values(perf).reduce((a, b) => a + b);
+    perf.total = Math.trunc(now() - timeStart);
     resolve({ face: faceRes, body: poseRes, hand: handRes, performance: perf });
   });
 }