412476 - analyze invalidates during startup on Win32

Status: RESOLVED INVALID

(Core :: Widget: Win32, defect, P3)

Description

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

There's a theory that win32 startup got slower since thread manager because we invalidate and repaint more often than before during startup; we need to add some tracing printfs in nsWindow::OnPaint in widget/win32 so that we can trace what invalidates/paints happen during startup and when, and whether we can remove some of them.

Comment 1

[Michal Novotny [:michal]]

Isn't the theory invalid according to https://bugzilla.mozilla.org/show_bug.cgi?id=406810#c48 ?

Comment 2

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Sounds like it.