[Webkit-unassigned] [Bug 156745] Memory usage grows when certain pages are left open

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156745

--- Comment #7 from Andreas Kling <akling at apple.com> ---
Since you mentioned spreadsheets with multiple subsheets, I went and played around with it.

I found this repro case:

1) Create an empty new spreadsheet.
2) Add a second subsheet to it (+ button in bottom corner)
3) Switch back and forth between Sheet1 and Sheet2.

Memory usage goes up slightly every time you switch between the sheets. You can supercharge this repro by holding down the key combo to switch to next sheet (Cmd-Shift-PageDn.) That way you'll reach 1GB in a matter of seconds.

This works every time for me in WebKit, Gecko and Blink. The memory is not released after waiting for quite some time. Only navigating away from the spreadsheet (for example back to the main Google Docs menu) frees up the memory.

Is this similar to the growth you've been seeing? Do you do a lot of switching between the sheets?

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