Stephen Thompson wrote:
> A couple of weeks ago we converted our Solaris (5.10) to Linux (Centos
> 5.4) and are now seeing consistently higher loads.  Same hardware
> (literally).  We monitor the load average on our server and the history
> shows a consistent load average on Solaris of between 0-1 (occasional
> peaks above) and a consistent load average on Linux of 2-4 (occasional
> peaks above, though seldom below unless "literally" idle).
>   
Solaris and Linux calculate load average differently, you cannot 
meaningfully compare between the systems.

In particular, Linux includes in the load average threads that are 
waiting for I/O, not just threads waiting for CPU.

David


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