This is actually an old question that I asked in the chatroom but got no satisfied solution.

I can't remember when this began to happen, probably not from the very beginning, but when I noticed, I had been waiting for my computer's reviving everyday for a minute or so when I visited Mathematica.SE for the first time that day.

I admit I've already got used to this, I've developed the habit to drink a cup of water and so on to kill the time, but today I suddenly sobered up: I should ask this formally in meta, to make sure if there is really no way to relieve this, or to draw more attention to this issue if it's currently incurable.

I use Vista 32bit, Chrome 40, on an old 2GHz dual core laptop with 2GB memory. The problem appeared at least from Chrome 25.

Oleksandr R. mentioned that he suffered the same issue in the chat room. Don't tell me we're the only two!

  • You should include as many details of your system and configuration as possible.
    – Mr.Wizard
    Feb 9, 2015 at 7:49
  • @Mr.Wizard Edited. Is it OK?
    – xzczd
    Feb 9, 2015 at 7:53

1 Answer 1


Chrome comes with awesome developer-tools that let you profile and record what is happening on your machine. Have you tried to use them? Open the dev-tools with Ctrl+Shift+I and go to Profiles. Make sure you have one of the problematic SE pages as favorites in your toolbar so that you can navigate easily to them.

Try "Collect JavaScript CPU Profile" and press Start. Navigate to the SE page and wait until it is finished. After this, you can see which script requires a lot of time and you can access which function is the most expensive

enter image description here

Additionally, note you can turn on rendering information that are directly drawn into the web-site.

enter image description here

Try to turn on everything except of "continuous page rendering". This might give you additional clues.

  • ……I know this may sound ridiculous, but I can't reproduce the stuck behavior anymore since I turned on "Collect JavaScript CPU Profile" for once yesterday, and now even if I restart my computer and visit Mathematica.SE without the dev-tools turned on, the stuck behavior doesn't appear!
    – xzczd
    Feb 10, 2015 at 3:11
  • 1
    @xzcd This is called fixing by frightening the bug :-) If it comes back and you have a way to reproduce it, then you still can try the dev-tools. Just make sure you don't have debugging turned on all the time. I guess the dev-tools are resource hungry.
    – halirutan Mod
    Feb 10, 2015 at 4:37
  • Seems that the stuck behavior came back since an update of Vista yesterday. This time it's not frightened. I collect the profile but can't understand it quite well, would you like to have a look?: 1000eb.com/12ex7
    – xzczd
    Feb 13, 2015 at 3:46
  • ……After I uninstalled the troublesome KB3013455 the stuck behavior disappeared again.
    – xzczd
    Feb 13, 2015 at 5:42
  • @xzczd Let's assume you land on a foreign planet, you sit on a computer and try to download something. You don't speak the language, you cannot decrypt the alien signs and the only thing that looks familiar on the screen is a sleeping child, a burning pig and a finger that looks like a hammer hit it. Question: Where would you click? :-)
    – halirutan Mod
    Feb 14, 2015 at 21:35
  • Don't worry, here comes a friendly alien who'll point out the right path for you!: i.stack.imgur.com/NhKqk.png :D
    – xzczd
    Feb 15, 2015 at 4:27

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