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von_kossa
n00b
Joined: 23 Feb 2007
Posts: 44
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 Posted: Wed Jan 08, 2025 10:26 pm Post subject: CONFIG_SCHED_AUTOGROUP question |
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Hi!
Hopefully an easy one, going through my settings in my 6.8.12kernel i found that CONFIG_SCHED_AUTOGROUP was disabled, and frankly it looks like something you would like to have enabled.
Googling around a bit i found that many people mentioned that CONFIG_SCHED_ALT and CONFIG_SCHED_BMQ disabled CONFIG_SCHED_AUTOGROUP but i can´t even find ALT or BMQ, they seem to be missing.
So:
1. What happened with CONFIG_SCHED_ALT and CONFIG_SCHED_BMQ, were they removed?
2. Should CONFIG_SCHED_AUTOGROUP be enabled in 2025 or is there som caveat?
Thanks in advance |
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pietinger
Moderator
Joined: 17 Oct 2006
Posts: 5292
Location: Bavaria
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tholin
Apprentice
Joined: 04 Oct 2008
Posts: 207
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| Posted: Thu Jan 09, 2025 2:11 pm Post subject: Re: CONFIG_SCHED_AUTOGROUP question |
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| von_kossa wrote: | Hi!
2. Should CONFIG_SCHED_AUTOGROUP be enabled in 2025 or is there som caveat?
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There are caveats to consider.
Nice values and scheduling attributes such as SCHED_IDLE may break when you use autogroups. Here is an old thread where I complained and found a solution to the problem: https://forums.gentoo.org/viewtopic-t-1060648.html
I am still using autogroups and that Cgroup workaround to this day but if you use Systemd there may be more elegant solutions available. |
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