Bug#715269: linux-image-3.2.0-4-amd64: High Load, High Rescheduling Interrupts in Wheezy

[Will Platnick <wplatnick@gmail.com>]

On July 7, 2013 at 8:07:11 PM, Bastian Blank (waldi@debian.org) wrote:

On Sun, Jul 07, 2013 at 08:11:53AM -0500, Will Platnick wrote: 
> My problem is that my Wheezy boxes have a load of over 3 and are not 
> staying up during our peak time, 

What do you mean with "are not staying up"? The load itself is no real 
indicator. 

"Not staying up" should have been revised. Once I did a clean OS install, our servers processes ran fine without any slowdowns as usual. Just with a load of 3+ rather than a load of less than one, and with a much higher # of interrupts.

> Rescheduling Interrupts: 4109580 on Wheezy vs 67418 on Squeeze. 
> Timer: 504238 on Wheezy vs 50 on Squeeze. 

Only the numbers per time-frame are of interrest, not absolute values. 

Those #'s, though absolute, are relative to each other. Both machines were rebooted and then given traffic at the exact same time. Those values took about 10 minutes to build up, so I believe they can be used as a good measure of comparison.