1615152 - The build system should manage the sccache daemon

Status: NEW

(Firefox Build System :: General, enhancement, P3)

Description

[Chris Manchester (limited bugmail, email directly)]

Whether the sccache daemon gets spawned by make or by the user (perhaps to get logs for debugging purposes) determines whether it sees the default jobserver or shares one with make (which might be -j100). I'm not sure offhand whether -j100 is going to be faster or slower for the local daemon's purposes, but we shouldn't leave it to chance.

Whatever we do here should be cognizant of the case someone is running the local daemon manually in order to capture logs, as well.

Comment 1

[Chris Manchester (limited bugmail, email directly)]

In a couple of local tests, although there was a lot of variance, giving the sccache daemon the default jobserver rather than the jobserver from make resulted in a 5-10% faster full build.