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I wonder if this (jQuery, not Twitter) is the cause of extreme memory usage in the latest stable Chrome. I get into work in the mornings and some tabs are using more than 500MB memory, other tabs are between 100MB and 200MB.

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I'm not sure why you would think that? The issue described in this blog post is relating to the performance of a particular CSS selector that jQuery implements - not really anything having to do with memory usage (and the memory usage of jQuery certainly isn't anything significantly above-and-beyond what a normal web application would use).

I was just wondering :) I am probably completely off target.

Here is a screenie of what I get every morning. Chrome 9 now (same for 8). 1st col is pvt bytes, 2nd is working set:

http://imageupload.org/?di=13129549812715

Edit: Interestingly after some usage, the memory gets freed, and it seems to return to normal again, ~50MB per tab.

Edit 2: Now I seem to get some Flash not responding dialogs. Sorry, it seems more likely a Flash issue, although I dont even have any Flash open on any tab.

Edit 3: Chrome stats: http://imageupload.org/?di=212954996318. Seems there is a problem with GC being a 'tad' conservative.

What does "using" mean? Virtual memory? Resident memory? Shared memory?

'Private bytes' as reported by Process Explorer.

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