I need to get execution time in milliseconds.     I originally asked this question back in 2008. The accepted answer   then was to use new Date().getTime() However, we can all agree now    that using the standard performance.now() API is more   app...
Is there a good profiler for javascript? I know that firebug has some support for profiling code. But I want to determine stats on a longer scale.  Imagine you are building a lot of javascript code and you want to determine what are actually the bot...
Is there a tool/plugin/function for Firefox that'll dump out a memory usage of Javascript objects that you create in a page/script? I know about Firebug's profiler but I'd like something more than just times. Something akin to what Your...
My aim is to develop a java script profiler for nodejs . The requirements are as under :   Should be able to fetch call stack . Get Time stamp information. Get number of iterations.    My chief concern is that i should not modify the source file ( .j...
I'm profiling javascript application using Chrome dev tools.  I see that the only memory area that grows is System objects total.  I wonder how could I understand what causes such behavior as there are no details in the tool showing which system...
I am running computations e.g. path-finding in web workers.  This can take several seconds and I want to optimise it.  Chrome seems to be about 3x faster for my current code, but where the time is spent or why I have no insight into.  Generally, how...
I have this piece of Javascript code, which takes about 600 ms on every call in Internet Explorer. The time taken in other browsers is negligble.  var _nvs_currentTab; var _nvs_zoomfield; var _nvs_centerfield; var _nvs_globsearch; var _nvs_category;...
I'm looking for a cross-platform way to reliably monitor maximum memory  consumption in Node.js process, regardless of whether there are leaks or not.   The processes in my case are both real applications and synthetic tests.  I would expect it t...
Only thing I have installed is Nodejs.  I'm using Windows 8 x64.  I run my program via node --prof app.js.  It generates a v8.log file.  Now, what do I do with the v8.log file?...
I am looking for tools that allow to perform profiling of websites on mobile devices similar to what Firebug and Chrome dev tools allow to do.  I have used Weinre quite extensive. While it is an awesome tool to use with real devices, it does not prov...

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