Massive Benchmark highlights asm.js performance of web browsers

Martin Brinkmann
Nov 3, 2014
Updated • Nov 3, 2014

Performance or more precisely JavaScript performance has been a thing in the browser world ever since Google launched its Chrome browser to the public.

Back then Chrome was without doubt the most optimized browser when it came to the execution of JavaScript. This was a wake-up call for Mozilla and Microsoft as they started to improve the JavaScript performance and overall snappiness of their browsers as well in order to compete with Google.

JavaScript performance is not really used anymore in these days to show the superiority of a browser over others. While it is still an important metric for developers, it is not really something that end users show much interest in anymore.

This could change again with the rise of HTML5 gaming though. Demos of Epic's Unreal 3 and 4 engine that run in web browsers benefit a lot from optimizations.

This time, Mozilla is leading the field when it comes to performance. A new benchmark for asm.js has been created to highlight how browsers perform in this area.

While it is not the first appearance of an asm.js test, as Octane has one test that does that, it is taking these tests to the next level by using large source files instead of smaller ones that are usually found in benchmarks.

Considering that both the Unreal engine and the Unity engine are large codebase-wise, its large nature ensures that the test comes closer to real-world requirements than before.

If you are interested in running the benchmark on your system head over to the Massive page on Github to do so. Just click on run and wait for the test to complete.

Here are results for browsers running on an Intel Core i7, 8 GB of RAM, Nvidia Geforce GTX 470 Windows 7 Pro 64-bit and a Intel Core I5 2500k, 8 GB of RAM, Nvidia  GeForce GTX 560 Ti Windows 10 system.

Windows 7

Test Firefox 36 Nightly Chromium 40 Opera 27 Dev Internet Explorer 11
Overall 4611 1595 1611 1089
main-thread-poppler-cold 0.499s 1.712s 1.692s 1.809s
main-thread-poppler-warm 0.470s 2.051s 1.543s 1.738s
main-thread-sqlite-cold 0.122s 0.821s 0.803s 0.657s
main-thread-sqlite-warm 0.069s 0.266s 0.403s 0.640s
box2d-throughput 6.891ms 8.348ms 8.266ms 16.947ms
box2d-throughput-f32 5.577ms 12.157ms 11.959ms 37.628ms
lua-binarytrees 9.162s 15.380s 14.892s 26.903s
lua-scimark 8.775 MFLOPS 5.350 MFLOPS 5.520 MFLOPS 2.895 MFLOPS
poppler-throughput 6.557s 14.857s 14.389s 31.747s
sqlite-throughput 10.748s 59.618s 58.859s 63.024s
poppler-cold-preparation 0.817s 0.462s 0.450s 0.172s
poppler-warm-preparation 0.153s 0.445s 0.421s 0.175s
sqlite-cold-preparation 0.805s 0.988s 1.015s 3.851s
sqlite-warm-preparation 0.098s 1.007s 1.002s 4.904s
box2d-variance 2.124ms 54.117ms 53.376ms 89.343ms
poppler-variance 4.764ms 31.577ms 30.032ms 39.046ms

Windows 10

Test Firefox 33.0.2 Chrome 38 Internet Explorer 11
overall 5990 2028
main-thread-poppler-cold 0.32s 1.280s 1.090s
main-thread-poppler-warm 0.321s 1.803s 1.054s
main-thread-sqlite-cold 0.062s 0.640s 0.590s
main-thread-sqlite-warm 0.026s 0.175s 0.562s
box2d-throughput 4.893ms 6.429ms 7.686ms
box2d-throughput-f32 4.456ms 10.382ms 16.663ms
lua-binarytrees 6.518s 10.902s 17.501ms
lua-scimark 11.900 MFLOPS 7.685 MFLOPS 3.890 MFLOPS
poppler-throughput 5.245s 11.457s failed
sqlite-throughput 7.306s 42.386s
poppler-cold-preparation 0.607s 0.358s
poppler-warm-preparation 0.127s 0.329s
sqlite-cold-preparation 0.600s 0.845s
sqlite-warm-preparation 0.081s 0.849s
box2d-variance 1.122ms 53.163ms
poppler-variance 3.788ms 27.694ms

Internet Explorer 11 on Windows 10 got stuck on the poppler-throughput test. Firefox beats the competition in most tests with the exception of poppler-cold-preparation where it came last.

Now You: Which browser performed best on your system?

Article Name
Massive Benchmark highlights asm.js performance of web browsers
Massive Benchmark tests the asm.js performance of modern web browsers. Run it to find out how well your browsers perform and compare results to other browsers.

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  1. ilev said on August 4, 2012 at 7:53 pm

    Doesn’t Windows 8 know that www. or http:// are passe ?

    1. Martin Brinkmann said on August 4, 2012 at 7:57 pm

      Well it is a bit difficulty to distinguish between domains and files for instance.

    2. Leonidas Burton said on September 4, 2023 at 4:51 am

      I know a service made by google that is similar to Google bookmarks.

  2. VioletMoon said on August 16, 2023 at 5:26 pm

    @Ashwin–Thankful you delighted my comment; who knows how many “gamers” would have disagreed!

  3. Karl said on August 17, 2023 at 10:36 pm


    The comments section under this very article (3 comments) is identical to the comments section found under the following article:

    Not sure what the issue is, but have seen this issue under some other articles recently but did not report it back then.

  4. Anonymous said on August 25, 2023 at 11:44 am

    Omg a badge!!!
    Some tangible reward lmao.

    It sucks that redditors are going to love the fuck out of it too.

  5. Scroogled said on August 25, 2023 at 10:57 pm

    With the cloud, there is no such thing as unlimited storage or privacy. Stop relying on these tech scums. Purchase your own hardware and develop your own solutions.

    1. lollmaoeven said on August 27, 2023 at 6:24 am

      This is a certified reddit cringe moment. Hilarious how the article’s author tries to dress it up like it’s anything more than a png for doing the reddit corporation’s moderation work for free (or for bribes from companies and political groups)

  6. El Duderino said on August 25, 2023 at 11:14 pm

    Almost al unlmited services have a real limit.

    And this comment is written on the dropbox article from August 25, 2023.

  7. John G. said on August 26, 2023 at 1:29 am

    First comment > @ilev said on August 4, 2012 at 7:53 pm

    For the God’s sake, fix the comments soon please! :[

  8. Kalmly said on August 26, 2023 at 4:42 pm

    Yes. Please. Fix the comments.

  9. Kim Schmidt said on September 3, 2023 at 3:42 pm

    With Google Chrome, it’s only been 1,500 for some time now.

    Anyone who wants to force me in such a way into buying something that I can get elsewhere for free will certainly never see a single dime from my side. I don’t even know how stupid their marketing department is to impose these limits on users instead of offering a valuable product to the paying faction. But they don’t. Even if you pay, you get something that is also available for free elsewhere.

    The algorithm has also become less and less savvy in terms of e.g. English/German translations. It used to be that the bot could sort of sense what you were trying to say and put it into different colloquialisms, which was even fun because it was like, “I know what you’re trying to say here, how about…” Now it’s in parts too stupid to translate the simplest sentences correctly, and the suggestions it makes are at times as moronic as those made by Google Translations.

    If this is a deep-learning AI that learns from users’ translations and the phrases they choose most often – which, by the way, is a valuable, moneys worthwhile contribution of every free user to this project: They invest their time and texts, thereby providing the necessary data for the AI to do the thing as nicely as they brag about it in the first place – alas, the more unprofessional users discovered the translator, the worse the language of this deep-learning bot has become, the greater the aggregate of linguistically illiterate users has become, and the worse the language of this deep-learning bot has become, as it now learns the drivel of every Tom, Dick and Harry out there, which is why I now get their Mickey Mouse language as suggestions: the inane language of people who can barely spell the alphabet, it seems.

    And as a thank you for our time and effort in helping them and their AI learn, they’ve lowered the limit from what was once 5,000 to now 1,500…? A big “fuck off” from here for that! Not a brass farthing from me for this attitude and behaviour, not in a hundred years.

  10. Anonymous said on September 28, 2023 at 8:19 am

    When will you put an end to the mess in the comments?

  11. RIP said on September 28, 2023 at 9:36 am

    Ghacks comments have been broken for too long. What article did you see this comment on? Reply below. If we get to 20 different articles we should all stop using the site in protest.

    I posted this on [] so please reply if you see it on a different article.

    1. RIP said on September 28, 2023 at 11:01 am

      Comment redirected me to [] which seems to be the ‘real’ article it is attached to

  12. RIP said on September 28, 2023 at 10:48 am

    Comment redirected me to [] which seems to be the ‘real’ article it is attached to

  13. Mystique said on September 28, 2023 at 12:13 pm

    Article Title: Reddit enforces user activity tracking on site to push advertising revenue
    Article URL:

    No surprises here. This is just the beginning really. I cannot see a valid reason as to why anyone would continue to use the platform anymore when there are enough alternatives fill that void.

  14. justputthispostanywhere said on September 29, 2023 at 3:59 am

    I’m not sure if there is a point in commenting given that comments seem to appear under random posts now, but I’ll try… this comment is for

    My temporary “solution”, if you can call it that, is to use a VPN (Mullvad in my case) to sign up for and access Reddit via a European connection. I’m doing that with pretty much everything now, at least until the rest of the world catches up with GDPR. I don’t think GDPR is a magical privacy solution but it’s at least a first step.

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