Comments on: JPU: JavaScript CPU Monitor

By: Ariel

Ariel — Fri, 26 Oct 2007 18:57:09 +0000

Excuse my ignorance :)
But what do you mean by “WorkerPool” ?

By: Shiva

Shiva — Sat, 13 Oct 2007 17:31:44 +0000

This is a beauty! It does give a crude picture of the CPU activity caused by the script in the page. Clever way to take advantage of setInterval()’s inconsistency.

By: Robert Schultz

Robert Schultz — Thu, 20 Sep 2007 19:02:12 +0000

Very interesting. I think this has real promise as something an end-user could turn on if they report a site as being slow.
I think for an end-user though it would work better if it was a traffic light. Green, Yellow, Red.
So have them switch on the traffic light and have them inform you what part of the application (what actions, areas, data, etc) they are dealing with when the traffic light turns red.
It would make it a lot easier to get answers out of users about where things are slow.

By: John T.

John T. — Wed, 19 Sep 2007 03:02:43 +0000

Can you give that bookmarklet another shot? TIA.

By: Marat Denenberg

Marat Denenberg — Tue, 18 Sep 2007 22:03:21 +0000

Very cute. It seems the script is taking advantage of the inaccuracy of setInterval to measure load. As we all know, the more stuff you do, the more inaccurate setInterval becomes. This method would probably not work in a multi-threaded environment, since one would expect setInterval to behave better … then again, with JS, you never know =)