Instead of upgrading to a higher bandwidth with more space and paying a higher rate, there are a few tweaks in memory utilization that can be used to significantly increase the performance of your Linux VPS. These are tips for customizing your default settings to optimize the utilization of resources which will definitely boost the performance level.
Disable applications that are not currently needed or being used. Review applications that are on your VPS to evaluate whether the memory usage that they require, the amount of space that they take up and the features that may be useful. If they consume copious amounts of memory or space and they’re not vital, disable or remove them. It will free up more resources for improved performance of other apps. You may be able to identify similar programs that will meet your basic needs while using fewer resources.
Tweak the Spamassassin Utility
This utility is consumes a lot of memory when left in a default set up. It consumes the most memory upon start up with basically no limit to the amount it uses. There are two ways to speed up your SSD VPS with Spamassassin. You could either disable the application and risk receiving numerous spam notifications or you could restrict the number of processes that it uses at startup. The latter choice is probably most advisable.
Don’t use Tomcat on a Linux VPS
Tomcat consumes a large amount of RAM as it has been known to be the cause of significant drops in performance on web servers.
Turn off Box Trapper in your email settings
Box trapper is an application that is designed to trap spam and prevent unwanted emails from being sent to your inbox. While it may be convenient to use, disabling the feature will help to free RAM as well as CPU resources.
Monitor the system for processes that are using high volumes of CPU or RAM
This is accomplished by using “TOP” and “PS axu” and network problems are identified by using “netstat-anp | sort –u”. When using Apache on VPS not all servers automatically end processes that have completed their required function and these can continue to cycle using resources that are unnecessary. There are measures that you can take to manually reduce the amount of wasted RAM that is being used.
Keep Alive is a huge space hog that tends to waste resources. Although it serves some useful purposes and should probably not be disabled, the settings may be tweaked to a low level (1-2 seconds). MaxClients values may also be adjusted to decrease the amount of resources that are being used. For this application, you’ll want to estimate the maximum number of processes that your server can handle and proceed with care so clients do not become locked out of the system when the limit has been reached.
Consider replacing Apache
If you are running Apache on your Linux VPS and you do not require all of the features supplied by Apache then you may want to replace it with another application that is more scalable. Servers that utilize a non-blocking technology to connect all clients with just one process are an excellent way to conserve resources for improved speed in a Linux VPS environment.
The recommendations for tweaking the applications used on a Linux VPS can be fast and easy to perform. They may be less expensive in the long run, so long as your VPS package provides you with ample resources to handle the amount of traffic and processes that are performed on a daily basis.