Comments on: JSLitmus – A Tool For Testing JavaScript Performance http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/ How to make the most of Zenbe Mail, Lists and Shareflow for your team. Fri, 26 Feb 2010 08:58:18 -0500 http://wordpress.org/?v=2.9.2 hourly 1 By: Browsers and Performance | Zenbe Blog http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-554 Browsers and Performance | Zenbe Blog Sat, 22 Nov 2008 05:27:27 +0000 http://blog.zenbe.com/?p=281#comment-554 [...] we find it valuable and devote time to measuring our Javascript performance using Robert’s JSLitmus Javascript benchmarking toolkit that he built while we were improving Zenbe render times [...] [...] we find it valuable and devote time to measuring our Javascript performance using Robert’s JSLitmus Javascript benchmarking toolkit that he built while we were improving Zenbe render times [...]

]]> By: Robert http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-528 Robert Thu, 13 Nov 2008 16:43:33 +0000 http://blog.zenbe.com/?p=281#comment-528 Done. Just added browser detection (and display) for all supported browsers (FF, IE, Opera, Chrome, Safari, iPhone) Done. Just added browser detection (and display) for all supported browsers (FF, IE, Opera, Chrome, Safari, iPhone)

]]> By: Mathieu 'p01' Henri http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-527 Mathieu 'p01' Henri Thu, 13 Nov 2008 12:02:15 +0000 http://blog.zenbe.com/?p=281#comment-527 Also, it would be nice if the graph showed the OS or at least if you mentioned the OS used for the various graphs posted in this post. I got completely different profiles on XP and Vista. Also, it would be nice if the graph showed the OS or at least if you mentioned the OS used for the various graphs posted in this post. I got completely different profiles on XP and Vista.

]]> By: Howard Katz http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-518 Howard Katz Tue, 11 Nov 2008 18:47:18 +0000 http://blog.zenbe.com/?p=281#comment-518 I just had it pointed out to me elsewhere that my testing wasn't testing what I thought it was. In particular, 'this' in the second test is referring to the window object and not the test function. Sigh, 'this' still manages to come along and hit me over the head now and then. Howard I just had it pointed out to me elsewhere that my testing wasn’t testing what I thought it was. In particular, ‘this’ in the second test is referring to the window object and not the test function. Sigh, ‘this’ still manages to come along and hit me over the head now and then.
Howard

]]> By: Howard Katz http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-516 Howard Katz Tue, 11 Nov 2008 16:30:33 +0000 http://blog.zenbe.com/?p=281#comment-516 Very nice, Robert. And very timely for me. I've been working on a jQuery plug-in and had been wondering about the difference in performance between using local variables vs. using instance variables. You just provided me the answer (which I found a bit surprising): http://www.fatdog.com/litmus_tests/InstanceVsLocalTest.html Apologies for the color scheme! :-) Howard Very nice, Robert. And very timely for me. I’ve been working on a jQuery plug-in and had been wondering about the difference in performance between using local variables vs. using instance variables. You just provided me the answer (which I found a bit surprising):

http://www.fatdog.com/litmus_tests/InstanceVsLocalTest.html

Apologies for the color scheme! :-)
Howard

]]> By: Testing JavaScript performance with JSLitmus http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-515 Testing JavaScript performance with JSLitmus Tue, 11 Nov 2008 12:08:12 +0000 http://blog.zenbe.com/?p=281#comment-515 [...] More info…. [...] [...] More info…. [...]

]]> By: Robert http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-511 Robert Mon, 10 Nov 2008 12:12:02 +0000 http://blog.zenbe.com/?p=281#comment-511 @clouddream: I hadn't tested Google Chrome, but it looks like the "problem" (if you can call it that) is that Chrome has eliminated the overhead associated with variable resolution. I've posted a comment on <a href="http://ajaxian.com/archives/jslitmus" rel="nofollow">the Ajaxian article</a> that goes into more detail about what's going on. @clouddream: I hadn’t tested Google Chrome, but it looks like the “problem” (if you can call it that) is that Chrome has eliminated the overhead associated with variable resolution.

I’ve posted a comment on the Ajaxian article that goes into more detail about what’s going on.

]]> By: Cloudream http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-509 Cloudream Mon, 10 Nov 2008 12:07:17 +0000 http://blog.zenbe.com/?p=281#comment-509 Google Chrome： Test Operations Per Second global ∞ local ∞ closure ∞ multi-closure ∞ empty function call ∞ Google Chrome：

Test Operations Per Second
global ∞
local ∞
closure ∞
multi-closure ∞
empty function call ∞

]]> By: Ajaxian » JSLitmus: Testing JavaScript Performance http://blog.zenbe.com/2008/11/07/jslitmus-a-tool-for-testing-javascript-performance/comment-page-1/#comment-507 Ajaxian » JSLitmus: Testing JavaScript Performance Mon, 10 Nov 2008 11:21:02 +0000 http://blog.zenbe.com/?p=281#comment-507 [...] Kieffer has announced JSLitmus a tool "designed specifically to allow you to quickly and easily write a JavaScript test [...] [...] Kieffer has announced JSLitmus a tool “designed specifically to allow you to quickly and easily write a JavaScript test [...]

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