RHELv4 and v5 - So slow as to be unusable.

[Kenneth Kirchner]

I would recommend installing some kind of performance monitoring software like Nagios or just SNMPd and Cacti.  These will track the performance of your machine and let you see memory, cpu, disk I/O, processes, etc over time to help identify what is going on.  These arent system intensive and give you much better visibility when problems like this do occur. There are many benefits.

My two cents anyway...

-Ken

On Oct 4, 2010, at 10:58 AM, Gary E Barnes wrote:

> The past week I upgraded our RHELv3 machines to v4.  Previously we had 
> several v3's, one v4, and one v5.  The v5 has never worked.  Now the new 
> v4's are acting up.
> 
> Boot the machine, things are fine.  Wait overnight and the machine may 
> take ten minutes to unlock the screen, may take several 10's of seconds to 
> do an ls, and generally simply isn't usable.
> 
> The v4's if you reboot them seem to be fine for the day.
> The v5 if you reboot it is fine for maybe 15 minutes.
> 
> The v4's, there will be a load average of 3 to 4, but top says nothing 
> whatsoever (other than top and the xterm) is running.
> The v5, there will be a load average of 0.1 or less and top again says 
> nothing is running.
> 
> SELinux is turned off.  Firewall is turned off.  I've even tried turning 
> off every service that isn't vital to being able to simply boot the 
> machines.
> 
> Any ideas?
> 
>        Gary
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