1144345 - e10s browser windows do not reflow content as quickly as non-e10s windows

Status: RESOLVED DUPLICATE of bug 1155494

(Core :: Layout, defect)

Description

[Jim Mathies [:jimm]]

STR:

1) Open a new non-e10s window
2) Open a new e10s window
3) Visit http://mdn.mozilla.org/, let the page load
4) in the non-e10s window, Resize the browser window using the lower right corner or the window repeatedly. Pay close attention to the right side of the window where content meets chrome.
5) do the same in the e10s window

result: content reflow and painting is slower than in non-e10.

spun off from bug 1113155.

Comment 1

[Jim Mathies [:jimm]]

https://treeherder.mozilla.org/#/jobs?repo=mozilla-central

tree herder pages also work really well here, although we tear in non-e10s on these pages too.

Comment 2

[David Parks [:handyman]]

NI to investigate if this is IPDL compress related.

Comment 3

[konikaferdous906]

Firefox Nightly 39.0a1(2015-03-20)
Build ID 	20150320030211
User Agent 	Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0

When I tested this bug, same problem I found in e10s and non-e10s windows.

Comment 4

[Tracy Walker [:tracy]]

Kicking back to triage.  

see https://bugzilla.mozilla.org/show_bug.cgi?id=1113155#c79