[Solved] systemd-sysctl.service failed to set parameters from 99-sy...

Perfect Gentleman · 2013-09-19 12:42:42

$ cat /etc/sysctl.d/99-sysctl.conf 
# Protection from the SYN flood attack.
net.ipv4.tcp_syncookies = 1
# Disable packet forwarding.
net.ipv4.ip_forward = 0
# Tweak those values to alter disk syncing and swap behavior.
vm.vfs_cache_pressure = 1000
vm.swappiness = 0
# USB Speed
vm.dirty_ratio = 5
vm.dirty_background_ratio = 3
# KDE
fs.inotify.max_user_watches = 524288

$ cat /proc/sys/vm/dirty_ratio 
10

$ cat /proc/sys/vm/dirty_background_ratio 
5

but

$ cat /proc/sys/vm/swappiness 
0

$ cat /proc/sys/vm/vfs_cache_pressure 
1000

Only restarting of systemd-systct.service helps.

$ sudo systemctl restart systemd-sysctl.service
$ cat /proc/sys/vm/dirty_ratio 
5
$ cat /proc/sys/vm/dirty_background_ratio 
3

what am i doing wrong?
---------------------------------
Solved with - % sudo chmod -x /usr/lib/pm-utils/power.d/laptop-mode

Last edited by Perfect Gentleman (2013-09-20 00:34:44)

cfr · 2013-09-19 23:54:54

You don't use xfce by any chance, do you?

Perfect Gentleman · 2013-09-20 00:31:11

nope, KDE.

MaartenBaert · 2013-09-29 19:39:45

I ran into the same issue today and I found a better solution. The values for dirty_ratio and dirty_background_ratio are set in /etc/laptop-mode/laptop-mode.conf. Search for these lines:

LM_DIRTY_RATIO=60
NOLM_DIRTY_RATIO=40
[...]
LM_DIRTY_BACKGROUND_RATIO=1
NOLM_DIRTY_BACKGROUND_RATIO=10

Just change those to the desired values and don't use sysctl.conf or sysctl.d.

cfr · 2013-09-29 21:12:45

Perfect Gentleman wrote:

Solved with - % sudo chmod -x /usr/lib/pm-utils/power.d/laptop-mode

A more permanent solution is to mask that file

mkdir -p /etc/pm/power.d
touch /etc/pm/power.d/laptop-mode

which will not get written on update or reinstall. (Not than an update to this package seems at all likely but just in case.)

Arch Linux

#1 2013-09-19 12:42:42

[Solved] systemd-sysctl.service failed to set parameters from 99-sy...

#2 2013-09-19 23:54:54

Re: [Solved] systemd-sysctl.service failed to set parameters from 99-sy...

#3 2013-09-20 00:31:11

Re: [Solved] systemd-sysctl.service failed to set parameters from 99-sy...

#4 2013-09-29 19:39:45

Re: [Solved] systemd-sysctl.service failed to set parameters from 99-sy...

#5 2013-09-29 21:12:45

Re: [Solved] systemd-sysctl.service failed to set parameters from 99-sy...

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