Difference between revisions of "Sysctl"

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=Tuning memory=
=Tuning memory=
==vm.swappiness==
==vm.swappiness==
Percentage of free memory before activating swap.


Default is 60
Default is 60
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==vm.vfs_cache_pressure==


To free/clear cache:
=== Links ===
 
*[https://linuxhint.com/understanding_vm_swappiness/ Understanding vm.swappiness]
*https://major.io/2008/12/03/reducing-inode-and-dentry-caches-to-keep-oom-killer-at-bay/
 
 
== vm.vfs_cache_pressure ==
 
Clear cache:
echo 1 > /proc/sys/vm/drop_caches
 
To free/clear all caches:
 
  echo 3 > /proc/sys/vm/drop_caches
  echo 3 > /proc/sys/vm/drop_caches

Latest revision as of 13:59, 29 October 2021

Tuning linux with sysctl


Links

Tuning memory

vm.swappiness

Percentage of free memory before activating swap.

Default is 60



Links


vm.vfs_cache_pressure

Clear cache:

echo 1 > /proc/sys/vm/drop_caches

To free/clear all caches:

echo 3 > /proc/sys/vm/drop_caches