Changing swappiness in sysctl.conf doesn't work for me

Posted by Graham on Ask Ubuntu See other posts from Ask Ubuntu or by Graham
Published on 2012-09-24T03:02:29Z Indexed on 2012/09/24 3:50 UTC
Read the original article Hit count: 388

Filed under:

swap

|

system-settings

I'm using 12.04 LTS and can sudo sysctl to set swappiness to 10, but adding vm.swappiness=10 to sysctl.conf doesn't work for me - after I reboot, swappiness still reports 60 (default)

I'd like to be able to reduce swaps to my SSD, but can't find a way to do so except manually per session. Modifying sysctl.conf seems to work for most - can anyone advise what I need to check / change to make it work for me too, please?

© Ask Ubuntu or respective owner

Related posts about swap

Write-error on swap-device, Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK

as seen on Server Fault - Search for 'Server Fault'
My root server at 1&1 was unresponsive on HTTP and SSH, so I logged into the serial console . It flooded my connection with endless error messages like quoted below. I initiated a reboot and now everything seems to work properly. After googling, I installed smartctl and ran a short self test… >>> More
GNU/Linux swapping blocks system

as seen on Server Fault - Search for 'Server Fault'
I have used GNU/Linux on systems from 4 MB RAM to 512 GB RAM. When they start swapping, most of the time you can still log in and kill off the offending process - you just have to be 100-1000 times more patient. On my new 32 GB system that has changed: It blocks when it starts swapping. Sometimes… >>> More
Swap partition not recognized (The disk drive with UUID=... is not ready yet or not present)

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I think I had an encrypted swap partition, because I chose to encrypt my home directory during the installation. I believe that's what the line with /dev/mapper/cryptswap1 ... in my /etc/fstab is all about. I did something to bork my swap because on the next boot, I got a message (paraphrased): … >>> More
Newbie ask Swap Value: How much Swap do I have?

as seen on Server Fault - Search for 'Server Fault'
When looking vmstat, this is what I got: procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 2872 0 0 0 0 8 17 0 14 3 1 94 2 0 the cache… >>> More
Crash and Centos

as seen on Server Fault - Search for 'Server Fault'
Hello guys and girls, I've a big problem it's the second time that my server crashed. I tried to check every thing and seems correct except this /var/log/messages: May 25 20:16:11 srv1 kernel: swap_free: Bad swap offset entry 00300000 May 25 20:16:33 srv1 kernel: swap_free: Unused swap offset… >>> More

Related posts about system-settings

change system settings from android widget

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a widget that changes some system settings, but it will not take right away. It seems like I need to refresh the system settings for it to take. How do you change some system settings from a widget that take instantly? >>> More
Accidentally uninstalled Ubuntu 14.04 system settings. How to get them back?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Somehow, cleaning up useless software (using software center), I uninstalled Ubuntu "system settings". I did this by mistake. Now I fail to find system settings application using software center (and there are so many items in history...). It seems strange to me because usually when I try to uninstall… >>> More
Cloning hard drive -- data, operating system settings, everything

as seen on Super User - Search for 'Super User'
I am using Windows XP. My hard drive (Seagate 160gig Barracuda) is about to fail. Its already developed bad sectors and it seems to get worse everyday. Data transfer mode is down to PIO mode 2, chkdsk runs every now and then, registry and important windows files get corrupted and I spend 30-60 minutes… >>> More
Table Design For SystemSettings, Best Model

as seen on Stack Overflow - Search for 'Stack Overflow'
Someone suggested moving a table full of settings, where each column is a setting name(or type) and the rows are the customers & their respective settings for each setting. ID | IsAdmin | ImagePath ------------------------------ 12 | 1 |… >>> More
system settings for iphone

as seen on Stack Overflow - Search for 'Stack Overflow'
hi friends, I m making alarm application, for that I need to access some system settings like System time format (24 hrs or 12 hrs), System Volume settings And make system Auto lock after some time intervals. I don't know how to implement such settings using code, if any one know about this please… >>> More