Big Loads

[Matt Hampton]

mbneto wrote:
> Hi,
> 
> Is there any tool or command that allows me to determine which part is
> the bottleneck in a busy system such as the one described?
> It could be the processor speed, the IO, the bus, memory etc.
> 
> Adding more memory just to find out that the problem is the processor
> speed will do not good :)
> 

vmstat is good for this sort of thing.  Check how many page faults
(si,so) you are getting and that will be a good indication that you need
more memory.

the CPU section will show how heavily loaded the box is processor wise.

matt