limiting cpu consomption with systemd ?

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promeneur
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limiting cpu consomption with systemd ?

Post by promeneur »

With Linux, I use "cpulimit" to limit CPU consumption of the cores.

I know these days there is something more modern using systemd, but it is too techie.

Please, can you (folding team) provide this systemd alternative ?

Thanks
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Marcos FRM
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Re: limiting cpu consomption with systemd ?

Post by Marcos FRM »

https://www.freedesktop.org/software/sy ... %20Control

CPUQuota=XX (in percent) should work ([Service] section) with distributions running unified cgroup hierarchy (check "default-hierarchy=" in "systemctl --version" output), but note that it is relative to one CPU. The value has to be multiplied by CPU count used for folding.

You can also try

https://github.com/FoldingAtHome/fah-cl ... nt-8578995

For testing purposes, calling

Code: Select all

sudo chrt -b -p 0 $(pgrep -x FahCore_a8)
has the same effect as the linked patch. To reset to default SCHED_OTHER:

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sudo chrt -o -p 0 $(pgrep -x FahCore_a8)
(adapt the core name if necessary)

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ps -o nice,class,comm -p $(pgrep -x FahCore_a8)
will show ("CLS" column) current policy: B = SCHED_BATCH, TS = SCHED_OTHER.
promeneur
Posts: 201
Joined: Tue Aug 07, 2012 11:59 am
Hardware configuration: openSUSE Tumbleweed, x86_64,Asrock B760M-HDV/M.2 D4, Intel Core i3-12100, 16 GB, Intel UHD Graphics 730, NVIDIA GeForce GT 1030, Edup-Love EP-9651GS Wi-Fi Bluetooth, multicard reader USB 3.0 startech.com 35fcreadbu3, Epson XP 7100, Headset Bluetooth 3.0 Philips SHQ7300

Re: limiting cpu consomption with systemd ?

Post by promeneur »

Thanks
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