A mess with RAM usage in phpsysinfo

Xefan · Jan 30, 2010, 7:58 PM

I run pfSense 1.2.3 on a computer with 1Gb RAM installed. So in the "System" section I see about 35% of RAM utilization. But phpsysinfo shows me 85% used! With number can I trust?

dondos · Jan 31, 2010, 2:13 AM

Trust the number reported in the System section. I have the same strange results for memory usage from phpsysinfo (96% of 3.86 GB ;D )

Xefan · Jan 31, 2010, 6:35 AM

Ok, this is really strange…

jimp · Jan 31, 2010, 9:29 PM

In FreeBSD, unused RAM is wasted RAM. What isn't being used by processes is used by the system for caching and such.

If you want a good number breakdown, go to the system console or ssh and run top, it will show you how much RAM is being used by various bits of the system.

I suspect that phpsysinfo is reporting how much is being utilized as a whole, and the other (lower) number is how much is being used only by processes and the kernel (not caching, etc).

Xefan · Feb 1, 2010, 6:14 AM

Thanks, now all is clear for me!