The build runs with the maximal jobs ignoring what MAKEOPTS is set to. Reproducible: Always
Can't reproduce at a glance, I have MAKEOPTS=-j6 and while building qt-creator there was 6 compilation jobs: $ pgrep cc1plus | wc -l 6 Not impossible there's a subtask that uses more jobs for a moment, albeit as long as the memory-heavy compilation jobs are respected I doubt I'll look at these even if it exists.
Maybe bug 928346 if any externalproject use as a complete guess.
(In reply to Sam James from comment #2) > Maybe bug 928346 if any externalproject use as a complete guess. Ah, unverified but it's possible the bundled syntax-highlighting:6 did that for a rather small part of the build: src/libs/3rdparty/syntax-highlighting/src/indexer/CMakeLists.txt: include(ExternalProject) Formerly kept bundled given it needs slot 6, but I guess there's not much blocking that anymore with the mask gone and could try using system's next bump. Well, it would require stabling it alongside kf-env-6:6 and extra-cmake-modules-6.3.0 though, kind of minor but maybe unwanted yet. If seen makeopts not respected for a big part of the build rather than just syntax-highlighting there may be something else going on. Otherwise figure I'll close this when it's unbundled.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e8e24128704e3f80016f4e7686be8aedfe31a8fa commit e8e24128704e3f80016f4e7686be8aedfe31a8fa Author: Ionen Wolkens <ionen@gentoo.org> AuthorDate: 2024-06-18 17:00:00 +0000 Commit: Ionen Wolkens <ionen@gentoo.org> CommitDate: 2024-06-18 18:13:52 +0000 dev-qt/qt-creator: update syntax-highlighting comment Bug: https://bugs.gentoo.org/934462 Signed-off-by: Ionen Wolkens <ionen@gentoo.org> dev-qt/qt-creator/qt-creator-13.0.1.ebuild | 2 +- dev-qt/qt-creator/qt-creator-13.0.2.ebuild | 2 +- dev-qt/qt-creator/qt-creator-9999.ebuild | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
Seems to be OK now, thank you!
It is? I didn't change anything yet beside a comment.
Either way I assume something else was going on here, the syntax-highlighting bit is too minor to be noticeable unless doing some automatic usage tracking.
I checked again and now it only spawns unlimited moc processes, but the number of C++ compile processes follows the limit.
Ha-ha, it did it again: $ pgrep cc1plus | wc -l 131 But only for a minute and not for the whole build. Looking up the build processes showed it was compiling various plugins at that time.
When staring at CMake's testsuite, I noticed https://cmake.org/cmake/help/latest/variable/CMAKE_AUTOGEN_PARALLEL.html we could try.
(In reply to Eugene Shalygin from comment #9) > Ha-ha, it did it again: > $ pgrep cc1plus | wc -l > 131 > > But only for a minute and not for the whole build. Looking up the build > processes showed it was compiling various plugins at that time. Did figure it'd be something momentary albeit that doesn't sound like syntax-highlighting. Shame qt-creator's cmake usage is wrapped in so many functions (+ qtbase's) that it's hard to track what's going on. Think it may even be *generating* cmake files. I feel like it, you could try the variable sam mentioned by doing: MYCMAKEARGS="-DCMAKE_AUTOGEN_PARALLEL=1" emerge ... Replace '1' by amount of jobs you want, and see if it helps either for either moc or the plugins (In reply to Sam James from comment #10) > When staring at CMake's testsuite, I noticed > https://cmake.org/cmake/help/latest/variable/CMAKE_AUTOGEN_PARALLEL.html we > could try. Interesting, albeit *if* it needs to be set to respect makeopts (would be nice if cmake told us what being unset implies) there's likely little value in doing this in qt-creator ebuild vs cmake.eclass as it's likely affecting a lot of packages. Anyhow, re-opening given there's likely something to figure out here.
I suspect I just saw this with Wireshark where it was building w/ -j4 -l4, consistently using 1 gcc process, then spawned many more moc, but I'm not sure. Will need to look...
OpenBSD set it in their "eclass": https://github.com/openbsd/ports/blob/09c84d434f3598d4be3eac25871db2a1ed4224ea/devel/cmake/cmake.port.mk#L18. FreeBSD: https://github.com/freebsd/freebsd-ports/commit/3ecb58c61953097c5b5331c3e11ae8fced410ca9
https://github.com/chimera-linux/cports/commit/5caef48c563290dca67de9eaa71b1628d069f28d
