https://wiki.nwl.cc/ 2026-05-27T19:01:33+00:00 https://wiki.nwl.cc/ https://wiki.nwl.cc/_media/wiki/dokuwiki.svg text/html 2012-12-10T23:03:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.nwl.cc/system/filesystem/cache?rev=1355180625&do=diff Filesystem Cache Linux does extensively use free memory to cache filesystem pages. Drop Caches Since linux-2.6.16 there is a mechanism to explicitly drop the filesystem cache. This can be achieved simply by echoing a number to the file /proc/sys/vm/drop_caches text/html 2013-06-16T01:27:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.nwl.cc/system/filesystem/lvm?rev=1371346070&do=diff Linux Volume Management LVM is a highly flexible abstraction layer for hard disks, or the like. It sits somewhere in between the physical storage device and the filesystem, but other layers like e.g. dm-raid or loop-devices may exist below or above it. Moving a Volume Group between Physical Volumes