Difference between revisions of "Sysctl"

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*https://major.io/2008/12/03/reducing-inode-and-dentry-caches-to-keep-oom-killer-at-bay/
 
*https://major.io/2008/12/03/reducing-inode-and-dentry-caches-to-keep-oom-killer-at-bay/
  
==vm.vfs_cache_pressure==
 
  
To free/clear cache:
+
== 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 12:59, 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