[Gllug] best way to update a single production server?

[John Winters]

On Fri, 01 May 2009 12:02:45 +0100, Karanbir Singh <mail-lists at karan.org>
wrote:
> John Hearns wrote:
>>> This depends a lot on the performance level's you are expecting. In
many
>>> cases, native performance > VM performance.
>>>
>> That's something worth exploring actually.
> 
> I did say 'many cases' not 'all cases'. There are plenty of scenarios 
> where VM's can actually run faster than native!

I recall when Acorn used to offer an x86 emulation environment on its
ARM-based machines in which you could even run Windows 3.0.  Obviously it
was pretty slow (scored the same as an original PC-XT for processor speed)
but it was startlingly fast (faster than pretty much any PC on the market
at the time) at disk access.  This was because the hard work was being done
by the ARM processor in native mode and it was much better than the
contemporary x86 CPUs at handling disc access.  It could read data fast
enough to handle disks without interleave or skew, which PCs at the time
generally couldn't.

John
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