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OK, that's helpful. &nbsp;<br />
<br />
Aside from processes and their associated data, what are some of the other consumers of memory? &nbsp;VPS overhead maybe? &nbsp;Interrupt handlers? &nbsp;Device drivers? &nbsp;What else?
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OK, that's helpful.  

Aside from processes and their associated data, what are some of the other consumers of memory?  VPS overhead maybe?  Interrupt handlers?  Device drivers?  What else?

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By far the largest will be the system cache. In some cases this could be over half of system memory.<br />

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By far the largest will be the system cache. In some cases this could be over half of system memory.


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This should be a real easy question for someone, but it has me stumped<br />
<br />
I'm using a Linux-based VPS server with WHM and cPanel.<br />
<br />
In WHM, under Service Status, I'm showing 65-70% memory use. &nbsp;This is cutting things a bit close, and I was considering buying more memory.<br />
<br />
However, I noticed that if I go to Show Current CPU Usage, and total up all the Mem% numbers, I consistently come up with a number that's FAR short of what Service Status is reporting (i.e., 35-40%).<br />
<br />
This is a big discrepancy. &nbsp;Which one should I believe and what accounts for the difference?<br />
<br />
TIA for your help.
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This should be a real easy question for someone, but it has me stumped

I'm using a Linux-based VPS server with WHM and cPanel.

In WHM, under Service Status, I'm showing 65-70% memory use.  This is cutting things a bit close, and I was considering buying more memory.

However, I noticed that if I go to Show Current CPU Usage, and total up all the Mem% numbers, I consistently come up with a number that's FAR short of what Service Status is reporting (i.e., 35-40%).

This is a big discrepancy.  Which one should I believe and what accounts for the difference?

TIA for your help.

WHM - Discrepancy in memory used

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).

Linux Distributions

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.