Interrupt Descriptions

[Robert Noland]

On Thu, 2009-10-01 at 23:31 +1000, Bruce Evans wrote:
> On Thu, 1 Oct 2009, Rui Paulo wrote:
> 
> > On 1 Oct 2009, at 01:02, Bruce Evans wrote:
> >
> >> On Wed, 30 Sep 2009, John Baldwin wrote:
> >> 
> >>> A few folks have asked recently for the ability to add descriptive strings 
> >>> to
> >>> registered interrupt handlers.  This is especially true since the advent 
> >>> of
> >>> MSI with multiple interrupts per device.  I hacked up a prototype today 
> >>> that
> >> 
> >> Interrupt names should be no longer than 4 (5 works sometimes) characters 
> >> so
> >> that they can be displayed by systat -v.
> 
> Make that: "Interrupt names must must contain only characters that
> take 1 space to print, and must be no longer than 10 characters, or
> unique and without garbage when blindly truncated to 10 characters,
> or in a special form that can easily be understood and compressed to
> <= 10 characters.  The special forms are..."
> 
> Similarly for device names (max length 4 or 5) and sleep message strings
> (max length 6).
> 
> > We should just change systat, IMHO, but I know it's not easy.
> 
> It's impossible to make changes that increase display resource requirements
> without breaking something.  Either small displays stop working or scrolling
> is required.

While I have always liked the fact that systat -v was capable of
displaying most anything that you would care about in one display, lack
of display real-estate is not a sufficient reason to limit the
descriptions.

Perhaps it is time for systat to get a bit of an overhaul...

robert.
 
> Bruce
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-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD