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add allTime vs. perBatch UIManager stats 

Summary: @​public

UIManagerStatTracker now provides allTime and perBatch stats so it's easy to see
how bit each batch is.

Reviewed By: @vjeux

Differential Revision: D2506218

fb-gh-sync-id: 635556185245d2bd6cb149497ea60b503b2523ce
This commit is contained in:
Spencer Ahrens 2015-10-05 14:11:51 -07:00 committed by facebook-github-bot-5
parent b0bdd4e45d
commit 340229303f
1 changed files with 15 additions and 4 deletions
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19
Libraries/ReactNative/UIManagerStatTracker.js
View File

@ -13,6 +13,8 @@
var RCTUIManager = require('NativeModules').UIManager; var RCTUIManager = require('NativeModules').UIManager;
var performanceNow = require('performanceNow');
var installed = false; var installed = false;
var UIManagerStatTracker = { var UIManagerStatTracker = {
install: function() { install: function() {
@ -21,15 +23,24 @@ var UIManagerStatTracker = {
} }
installed = true; installed = true;
var statLogHandle; var statLogHandle;
var stats = {}; var startTime = 0;
var allTimeStats = {};
var perFrameStats = {};
function printStats() { function printStats() {
console.log({UIManagerStatTracker: stats}); console.log({UIManagerStatTracker: {
allTime: allTimeStats,
lastFrame: perFrameStats,
elapsedMilliseconds: performanceNow() - startTime,
}});
statLogHandle = null; statLogHandle = null;
perFrameStats = {};
} }
function incStat(key: string, increment: number) { function incStat(key: string, increment: number) {
stats[key] = (stats[key] || 0) + increment; allTimeStats[key] = (allTimeStats[key] || 0) + increment;
perFrameStats[key] = (perFrameStats[key] || 0) + increment;
if (!statLogHandle) { if (!statLogHandle) {
statLogHandle = setImmediate(printStats); startTime = performanceNow();
statLogHandle = window.requestAnimationFrame(printStats);
} }
} }
var createViewOrig = RCTUIManager.createView; var createViewOrig = RCTUIManager.createView;