At 09:20 AM 12/30/2005, Craig White wrote:
On Fri, 2005-12-30 at 09:09 -0500, Robert Moskowitz wrote:
At 08:18 AM 12/30/2005, Johnny Hughes wrote:
On Fri, 2005-12-30 at 07:56 -0500, Robert Moskowitz wrote:
System:
PIII 500Mhz 128MB memory 20GB drive
Current CentOS 4.2 Gnome GUI
The system runs 'idle' at around 70Mb memory used and 4% cpu usage.
But whenever I go to start a task:
Start Gedit, Services tool, a Terminal window, Firefox
It takes a minute or so. CPU mayyyypeak at 100% briefly then come down. Memory has yet to exceed 100Mb usage.
Any pointers of where to look to see why it is slow?
Why it is slow is easy ... RHEL-4 (and therefore CentOS) doesn't work correctly in GUI mode with less than 256MB RAM.
If you run top and look, you will have lots of SWAP usage ... which is simulating system memory onto hard drive. This is VERY slow and makes things take forever :)
Oh well...
Since this is targeted as my DNS and mail server, I had better get more memory quickly!
I had been using gnome's system monitor. And although it showed 43Mb of swap used (of 256Mb) it did not show any swap activity.
I will try and figure out how to use top.
If all you need it for is to serve dns and mail there is no need to run a gui and the machine should be quite adequate at run level 3.
Once I set it up, I was going to change my run level to 3 (which script is that in?).
Install webmin to configure/monitor and use command line too.
webmin. From yum? ;-)
And of course run through SSH. What port(s) does it use?
If vi is too cumbersome to learn, 'yum install emacs' as emacs is a bit easier to use.
I earlier mentioned that I have my vi book handy:
"Learning the VI Editor" 4th edition ('88).
emacs is always a bit much.