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31 lines
1.2 KiB
SYSTEMD
31 lines
1.2 KiB
SYSTEMD
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (C) 2023-2024 Oracle. All Rights Reserved.
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# Author: Darrick J. Wong <djwong@kernel.org>
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[Unit]
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Description=bcachefsck background service slice
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Before=slices.target
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[Slice]
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# If the CPU usage cgroup controller is available, don't use more than 60% of a
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# single core for all background processes.
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CPUQuota=60%
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CPUAccounting=true
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[Install]
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# As of systemd 249, the systemd cgroupv2 configuration code will drop resource
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# controllers from the root and system.slice cgroups at startup if it doesn't
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# find any direct dependencies that require a given controller. Newly
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# activated units with resource control directives are created under the system
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# slice but do not cause a reconfiguration of the slice's resource controllers.
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# Hence we cannot put CPUQuota= into the bcachefsck service units directly.
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#
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# For the CPUQuota directive to have any effect, we must therefore create an
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# explicit definition file for the slice that systemd creates to contain the
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# bcachefsck instance units (e.g. bcachefsck@.service) and we must configure this
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# slice as a dependency of the system slice to establish the direct dependency
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# relation.
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WantedBy=system.slice
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