The page cache is automatically enabled on Linux systems and will transparently make IO faster by storing recently used data in the cache. If you want to manually clear the cache that can be done easily by sending an echo command to the /proc filesystem indicating to the kernel to drop the cache and free the memory used for the cache. Clear RAM Memory Cache, Buffer and Swap Space on Linux. Have you ever have any process is eating away your memory and you want to clear it, Linux provides a way to flush or clear ram cache. How to Clear Cache in Linux? Every Linux System has three options to clear cache without interrupting any processes or services. Clear PageCache only.

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Linux Clear Page Cache

Linux borrows unused RAM memory for disk caching due to this it looks like the system is low on memory. Usually you don’t need to do anything to clear this memory as Linux automatically manages the RAM and will allocate the cached memory when ever a application asks for the same.

Cache Clear In Linux

Let’s go through the process to clear memory cache and buffer on Linux based operating systems. We will show how to flush memory cache on Linux.

How To Clear Memory Cache And Buffer On Linux

We have different option to clear memory on Linux.

How To Clear The Cache Memory In Linux Server

First option to clear memory caches on Linux.

Command to free pagecache, dentries and inodes in cache memory in Linux.

Second option to clear memory cache.

How To Clear The Cache Memory In Linux Operating System

Command to free dentries and inodes

Third option to clear memory cache on Linux.

Run the following command to free pagecache only:

How To Schedule Cron To Flush Cache Regularly

Run the following command to schedule cron to flush cache regularly. It makes your job easier and reduce the work pressure. Use ‘crontab -e’ command to edit cron on your Linux.