Shulou(Shulou.com)06/02 Report--

In order to solve the problem of how to clear the cache in Linux, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

Clear the pagecache:

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Echo 1 > / proc/sys/vm/drop_caches

Or:

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Sysctl-w vm.drop_caches=1

Clear dentries and inodes:

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Echo 2 > / proc/sys/vm/drop_caches

Or:

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Sysctl-w vm.drop_caches=2

Clear all caches (pagecache, dentries, and inodes):

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Echo 3 > / proc/sys/vm/drop_caches

Or:

Sync is used to force the changed content to be written to disk immediately to update the hyperblock information.

Sysctl-w vm.drop_caches=3

This is the answer to the question about how to clear the cache in Linux. I hope the above content can be of some help to you. If you still have a lot of questions to solve, you can follow the industry information channel for more related knowledge.

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