Closed Bug 1490218 Opened Last year Closed Last year

Disable sccache on PGO builds

Categories

(Firefox Build System :: General, enhancement)

enhancement
Not set

Tracking

(firefox64 fixed)

RESOLVED FIXED
mozilla64
Tracking Status
firefox64 --- fixed

People

(Reporter: glandium, Assigned: glandium)

References

Details

Attachments

(1 file)

No description provided.
Currently, sccache doesn't work at all with clang-cl (PGO or not, bug
1476604), and newer versions of sccache that do the right thing for PGO
flags with clang have other problems (see bug 1484897).

The benefit of sccache on PGO+LTO builds is however limited (the
profile-use half of the build doesn't benefit at all, and since it does
LTO as well, it's the most time-consuming part of the build), so in
order not to further block switching Linux builds to clang, let's just
disable sccache on PGO builds for now (the earlier we can switch to
clang, the more time it leaves to catch any problem that causes).
Comment on attachment 9007983 [details]
Bug 1490218 - Disable sccache on PGO builds

David Major [:dmajor] has approved the revision.
Attachment #9007983 - Flags: review+
Pushed by mh@glandium.org:
https://hg.mozilla.org/integration/autoland/rev/ec76e671d3da
Disable sccache on PGO builds r=dmajor
https://hg.mozilla.org/mozilla-central/rev/ec76e671d3da
Status: NEW → RESOLVED
Closed: Last year
Resolution: --- → FIXED
Target Milestone: --- → mozilla64
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