Sysctl
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Tuning linux with sysctl
Links
- https://www.kernel.org/doc/Documentation/sysctl/vm.txt
- https://klaver.it/linux/sysctl.conf
- https://wiki.mikejung.biz/Sysctl_tweaks
Tuning memory
vm.swappiness
Percentage of free memory before activating swap.
Default is 60
Links
- 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
