[rescue] IBM :: Different

[George Adkins]

On Wednesday 13 February 2002 04:18 pm, you wrote:
> On Wed, 13 Feb 2002, George Adkins wrote:
> > > > > The way POWER4 systems are organized is that they have two cores on
> > > > > each chip.  Each core has 512kB/512kB level 1 cache.  The module
> > > > > has an 8MB (or is it 10MB?) level 2 cache for both cores, and the
> > > > > processor board (with two POWER4's) has 128MB level 3 cache.
> > > >
> > > > Uhm.  Damn.  They don't screw around, do they?  I have servers with
> > > > less memory than that.
> > > >
> > > > So, is main memory optional?  Can you just bootstrap the kernel into
> > > > the cache? :)
> > >
> > > Hehehe.  These machines have a minimum configuration of 2GB RAM, if
> > > memory serves.  And they can connect into an RS/6000 SP switch for
> > > future expansion.
> >
> > Yes, but remember, for IBM Mainframes compared to everyone else, this is
> > like having a 2 or 4 processor server with 512K or 1 meg cache each, with
> > 8 megs of unified L2 cache for the processors and 128 megs of buffer RAM
> > between the Proc and a 2GB main RAM.  (no doubt all kickass fast...)
>
> These aren't mainframes.  These are RS/6000's.  This is *really* a 128MB
> SRAM cache.  Big ballsy systems.  Microprocessor-based.
>
Yes, Yes, I apologize for deigning to write the word 'mainframe'  would you 
be offended or otherwise manage to find some fault if I said 'system' instead?
(Of course you would, please note in advance the lack of capitalization when 
using the word system here, I meant in no way to imply System, as in System 
360 or System 390, it was intended to mean system as in the generic term 
referring to 'computer system'.)

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