Your message dated Sun, 26 Jan 2020 01:45:35 +0100
with message-id <[email protected]>
and subject line Re: systemd: 'ControlGroupAttribute=memory.swappiness 0' does
nothing
has caused the Debian Bug report #946694,
regarding systemd: 'ControlGroupAttribute=memory.swappiness 0' does nothing
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
946694: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=946694
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: systemd
Version: 241-7~deb10u2
Severity: normal
Dear Maintainer,
I have a service with:
[Service]
ControlGroupAttribute=memory.swappiness 0
But when I look at the process's entry in
/sys/fs/cgroup/memory/system.slice/servicename.service/memory.swappiness
I see it has the default swappiness of 60.
What's more is that I can't do this:
ExecStartPost=/bin/sh -c "echo 0 > /sys/fs/cgroup/memory/system.slice/
servicename.service/memory.swappiness"
because ExecStartPost is apparently run before the cgroup is established.
This is really awful behavior because I can't spawn essential services that
rely on not getting swapped out on my very busy server. This deeply affects
performance of my servers.
Debian Release: 10.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.19.0-6-amd64 (SMP w/32 CPU cores)
Kernel taint flags: TAINT_WARN, TAINT_SOFTLOCKUP
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages systemd depends on:
ii adduser 3.118
ii libacl1 2.2.53-4
ii libapparmor1 2.13.2-10
ii libaudit1 1:2.8.4-3
ii libblkid1 2.33.1-0.1
ii libc6 2.28-10
ii libcap2 1:2.25-2
ii libcryptsetup12 2:2.1.0-5+deb10u2
ii libgcrypt20 1.8.4-5
ii libgnutls30 3.6.7-4
ii libgpg-error0 1.35-1
ii libidn11 1.33-2.2
ii libip4tc0 1.8.2-4
ii libkmod2 26-1
ii liblz4-1 1.8.3-1
ii liblzma5 5.2.4-1
ii libmount1 2.33.1-0.1
ii libpam0g 1.3.1-5
ii libseccomp2 2.3.3-4
ii libselinux1 2.8-1+b1
ii libsystemd0 241-7~deb10u2
ii mount 2.33.1-0.1
ii util-linux 2.33.1-0.1
Versions of packages systemd recommends:
ii dbus 1.12.16-1
ii libpam-systemd 241-7~deb10u2
Versions of packages systemd suggests:
pn policykit-1 <none>
ii systemd-container 241-7~deb10u2
Versions of packages systemd is related to:
pn dracut <none>
ii initramfs-tools 0.133+deb10u1
ii udev 241-7~deb10u2
-- no debconf information
--- End Message ---
--- Begin Message ---
On Fri, 13 Dec 2019 22:51:45 +0000 (UTC) Charles Samuels
<[email protected]> wrote:
> Package: systemd
> Version: 241-7~deb10u2
> Severity: normal
>
> Dear Maintainer,
>
> I have a service with:
> [Service]
> ControlGroupAttribute=memory.swappiness 0
>
Quoting the upstream NEWS file from v205 (from 2013):
* As discussed earlier, the low-level cgroup configuration
options ControlGroup=, ControlGroupModify=,
ControlGroupPersistent=, ControlGroupAttribute= have been
removed. Please use high-level attribute settings instead as
well as slice units.
That option is long gone.
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--- End Message ---
