Every Linux System has three options to clear cache without interrupting any processes or services.
Log in to the Ubuntu server and enter the root privileges by <code>sudo -i</code>
<ol>
<li>Clear PageCache only.
<pre><code class="lang-bash"> sync; echo 1 &gt; /proc/sys/vm/drop_caches
</code></pre>
</li>
<li>Clear dentries and inodes.
<pre><code class="lang-bash"> sync; echo 2 &gt; /proc/sys/vm/drop_caches
</code></pre>
</li>
<li>Clear PageCache, dentries, and inodes.
<pre><code class="lang-bash"> sync; echo 3 &gt; /proc/sys/vm/drop_caches
</code></pre>
 <a target="_blank" href="https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/">https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/</a>
</li>
</ol>

Every Linux System has three options to clear cache without interrupting any processes or services.

Log in to the Ubuntu server and enter the root privileges by `sudo -i`

1. Clear PageCache only.
    
    ```bash
    sync; echo 1 > /proc/sys/vm/drop_caches
    ```
    
2. Clear dentries and inodes.
    
    ```bash
    sync; echo 2 > /proc/sys/vm/drop_caches
    ```
    
3. Clear PageCache, dentries, and inodes.
    
    ```bash
    sync; echo 3 > /proc/sys/vm/drop_caches
    ```
    
    [https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/](https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/)

Pratima | Coding Chronicles

Pratima | Coding Chronicles

Clear RAM Memory Cache on Ubuntu Linux