purge
Macでは、いくつかのメモリを解放するために使用します。 Linux(Ubuntuサーバー)でこれに対応するものは何ですか?apt-get install purge
私には何も与えられませんでした。 Macに慣れていない場合、そのページpurge
は次のようになります。man
purge(8) BSD System Manager's Manual purge(8)
NAME
purge -- force disk cache to be purged (flushed and emptied)
SYNOPSIS
purge
DESCRIPTION
Purge can be used to approximate initial boot conditions with a cold disk
buffer cache for performance analysis. It does not affect anonymous mem-
ory that has been allocated through malloc, vm_allocate, etc.
SEE ALSO
sync(8), malloc(3)
September 20, 2005
答え1
これは次のことを行うことができますpurge
。
sync && echo 3 > /proc/sys/vm/drop_caches
からman proc
:
/proc/sys/vm/drop_caches (since Linux 2.6.16)
Writing to this file causes the kernel to drop clean caches,
dentries and inodes from memory, causing that memory to become
free.
To free pagecache, use echo 1 > /proc/sys/vm/drop_caches; to
free dentries and inodes, use echo 2 > /proc/sys/vm/drop_caches;
to free pagecache, dentries and inodes, use echo 3 >
/proc/sys/vm/drop_caches.
Because this is a nondestructive operation and dirty objects are
not freeable, the user should run sync(8) first.
そして次からman sync
:
NAME
sync - flush file system buffers
DESCRIPTION
Force changed blocks to disk, update the super block.