mjhjmtu

sometimes my Chromium eats a lot of RAM and CPUs. I would like to limit its processes. I read how to do it with cgroup managing in Arch and RedHat wiki pages and some other sites. According that I configured my:

$ cat /etc/cgconfig.conf 
mount 
 cpu = /sys/fs/cgroup/browsers;
 cpuacct = /sys/fs/cgroup/browsers;
 memory = /sys/fs/cgroup/browsers;


group browsers 
# perm 
# # Who can manage limits
# admin 
# uid = root;
# gid = users;
# 
# # Who can add tasks to this group
# task 
# uid = waldauf;
# gid = users;
# 
# 
 cpu 
# # Set the relative share of CPU resources equal to 25%
 cpu.shares = "256";
 
# # Use max 4 CPUs at time
# cpuset 
# cpuset.cpus="0-4"
# 
 cpuacct 
 cpuacct.usage="0";
 
 memory 
# # Allocate at most 1 GB of memory to tasks
 memory.limit_in_bytes = "8G";
# # Apply a soft limit of 512 MB to tasks
 memory.soft_limit_in_bytes = "6G";
 

and

$ cat /etc/cgrules.conf
### LIMIT FOR CHROMIUM
# user:process subsystems group
waldauf:/usr/lib/chromium/chromium cpu,memory browsers

When I checked configuration I got this error message:

$ sudo cgconfigparser -l /etc/cgconfig.conf
Error: cannot create directory /sys/fs/cgroup/browsers
cgconfigparser; error loading /etc/cgconfig.conf: Cgroup, operation not allowed

After that I commented mount then parser run alright. I restarted cgconfig.service in systemd. But in /sys/fs/cgroup/ is not created new browsers cgroup.

$ sudo systemctl restart cgconfig.service
$ ll /sys/fs/cgroup 
total 0
dr-xr-xr-x 2 root root 0 Oct 27 18:55 blkio/
lrwxrwxrwx 1 root root 11 Oct 27 18:55 cpu -> cpu,cpuacct/
dr-xr-xr-x 3 root root 0 Oct 27 18:55 cpu,cpuacct/
lrwxrwxrwx 1 root root 11 Oct 27 18:55 cpuacct -> cpu,cpuacct/
~

What next I tried:

• 
  

  Create cgroup direcotry in system's /tmp directory. But I got:

  
  
  

  sudo cgconfigparser -l /etc/cgconfig.conf
  Error: cannot mount cpu to /tmp/cgroup/browsers: Device or resource busy
  cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed
  

  
  



• The same error I got createing new tmpfs mount /tmp/cgroup.

Can I ask you for the kick which moves me in the right way? :]