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I'm currently running Fedora 10 (KDE spin) on my HP510 (1.5ghz Celeron, 1GB Ram) and it runs hellishly slow. Once I am in a program and working it is fine, but switching between them, or having many open, results in the computer grinding to a halt. Sometimes switching between windows, and then being impatient by clicking on that window before it has loaded up can cause that program to crash.
I've just booted up, only have firefox running, but have Apache/MySQL daemons running in the background, and I am using 800mb of RAM. Eventually this number leaps to nearly 1GB, leaving me with about 15mb of RAM free, but it doesn't even try to use it's swap space. It has the default partitioning, so has given itself a 2GB swap partition, but it is always 100% free.
I have tried all sorts of distros over the past few years, and never seem to settle with one, though I have been using mainly Red Hat family distros as of late. Using KDE3 on CentOS seemed much nippier, I'm considering switching away from KDE to XFCE.
Unless it could be sorted by simply configuring my LAMP stack to use less resources? I have Apache, MySQL and PHP with their default settings that I just use for web development testing. But when just left idle they only appear to be using 15mb of ram and 0% cpu, though the computer seems constantly under load and slow to react regardless as to whether I am doing any development testing.
I just popped the XFCE live cd in, didn't feel any quicker, but to be fair it's hard to judge without installing it.
Distribution: Mandriva 2009 X86_64 suse 11.3 X86_64 Centos X86_64 Debian X86_64 Linux MInt 86_64 OS X
If it is some help I install KDE GNOME XFCE LXDE
LXDE seems to be the most fast one , followed by XFCE
But I run X86_64 version , and used 4 GB of RAM , before upgrading used 2 GB
The difference between 2 GB and 4 GB is not so much
Looking at the results from top doesn't seem to shed any light on the matter. Highest RAM usage is firefox at about 100mb, then X at about 35mb, and the rest are insignificant. CPU seems to be yoyoing between being busy and idle, but nothing stands out as being high usage.
I have been reading up about LXDE this afternoon, so will try that later!
Eventually this number leaps to nearly 1GB, leaving me with about 15mb of RAM free, but it doesn't even try to use it's swap space.
This is normal, because of the way that linux works (if it sees RAM that would be of no other use, Linux uses it for buffers; when some other use comes along it uses less for buffers, until, basically, all the ram that was being used for buffers is gone and then it uses swap).
with apache running and using the computer for other things . 1 gig is NOT enough ram ,2 gig min
The LAMP stack is only accessible on localhost, and there are only a few virtualhosts for sites I am developing/testing. Never had a problem with LAMP on KDE3 on my last laptop which had a 1ghz processor and 512mb of ram.
Installed LXDE now, using 400/1000mb of ram now. Much smoother.