Bug 723776

Summary:	www-client/chromium: Build times doubled between 78.0.3904.87 and 80.0.3987.53
Product:	Gentoo Linux	Reporter:	Luke-Jr <luke-jr+gentoobugs>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED CANTFIX
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Luke-Jr 2020-05-18 14:29:44 UTC

For some reason, Chromium build times shot up from 15 hours with 78.0.3904.87 to 1 day 12 hours with 80.0.3987.53, and remain at 1 day 14 hours now with 81.0.4044.129.

I haven't dug deeply into it, but I suspect the entire platform is actually being compiled twice: once to generate some initial context state (loaded directly into RAM at runtime?), and then again for the final browser build. If that suspicion is correct, it would seem like it should be possible to reuse at least most of the first build for the final compile.

In any case, it would be nice to at least get it documented here what is causing the huge increase in build time, and ideally get it reduced back if possible.

Comment 1 Stephan Hartmann (RETIRED) gentoo-dev

2020-05-18 15:54:25 UTC

jumbo-build was dropped after chromium-78.