Categories: cPanel

How to Clear Memory cache in Linux !!!

 

Clearing the Linux Memory cache can be a quick way to regain system resources. Writing to the drop_cache process will cause the kernel to drop clean caches, dentries and inodes from memory, causing that memory to become free.

To free pagecache:# echo 1 > /proc/sys/vm/drop_caches

To free dentries and inodes:# echo 2 > /proc/sys/vm/drop_caches

To free pagecache, dentries and inodes:# echo 3 > /proc/sys/vm/drop_caches

As this is a non-destructive operation, and dirty objects are not freeable, the user should run “sync” first in order to make sure all cached objects are freed.

Example – Memory before:

[root@server ~]# free -m
total       used       free     shared    buffers     cached
Mem:          7860       7040        820          0        343       5076
-/+ buffers/cache:       1620       6240
Swap:         3999          0       3999

[root@server ~]# sync
[root@server ~]# echo 3 > /proc/sys/vm/drop_caches

Memory after:

[root@server ~]# free -m
total       used       free     shared    buffers     cached
Mem:          7860       1279       6581          0          0         33
-/+ buffers/cache:       1245       6615
Swap:         3999          0       3999

 


Vishwajit Kale
Vishwajit Kale blazed onto the digital marketing scene back in 2015 and is the digital marketing strategist of Hostripples, a company that aims to provide affordable web hosting solutions. Vishwajit is experienced in digital and content marketing along with SEO. He's fond of writing technology blogs, traveling and reading.

Recent Posts

Cyberduck and FileZilla: A Comprehensive Comparison

As a web designer and web developer your experience must have reached to new height, right? Further, you need to…

52 mins ago

The Science Behind Social Media Posting Times

In today's digital landscape, timing is everything. Whether you're a social media manager, business owner, or content creator, the success…

1 week ago

Mastering Google Search Console: Tips for New Users

Are you a website owner? Maintaining the website is the prime concern for any website owner. Yes, it’s equally important…

1 week ago

A Comprehensive Guide to Changing and Protecting the WordPress Login URL

If you’ve planned to launch a WordPress website, you might get a question, “How do I log in to WordPress?”…

2 weeks ago

The Ultimate Showdown: Linux vs Windows for VPS Hosting

As the demand for virtual private servers (VPS) continues to grow, businesses and individuals are faced with a crucial decision:…

1 month ago