RE: CPW limit

["Hall, Philip" <phall@xxxxxxxx>]

Apparently so...

http://www.fast400.net/

--phil 
[ waiting for the fallout :o) ]

> -----Original Message-----
> From: Joe Giusto [mailto:jgiusto@xxxxxxxxxxxxxx]
> Subject: RE: CPW limit
> 
> 
> Is there any way to set the timer interval manually?
> 
> 
>  -----Original Message-----
> 
> It is not even that (in a sense). The timer issues an 
> interrupt every so
> often to signal to the operating system that it is time to 
> give the CPU to
> another job. Processing of interrupts is done by task(s) 
> CFINTnn. These
> tasks run all the time and perform necessary interrupt processing.
> Processing an interrupt takes a certain (short) time, so you 
> don't want
> the timer to interrupt too often. If the system exceeds its 
> CPW interactive
> limit, the timer interval (inverse of how often the timer 
> interrupts) is
> just
> set
> to a very small value, forcing the machine to spend almost 
> all its time
> processing these interrupts and the system slows to a crawl. Later,
> when interactive load decreases, the timer interval is 
> increased again.