-hh wrote:
> On Mar 26, 6:49 am, "Rita Berkowitz" <ritaberk2...@[EMAIL PROTECTED]
> wrote:
>> nospam wrote:
>>>> Just a hint, it aint happening since Photoshop isn't optimized for
>>>> 64-bit. You can have 10GB of memory and it aint making any
>>>> difference. The only thing significant here is you are in total
>>>> bliss with thinking the placebo of having extra memory is actually
>>>> helping when it is not. Anything past
>>>> 1.5GB of RAM is a waste for Photoshop.
>>> totally false.
>> How so?
>
>
> The issue here is not 32-vs-64 addressing, because 1.5GB is well
> within 32 bit addressing limits.
>
>
> Since contem****ary OS's run virtual RAM and swaps out to the Hard
> Drive (HD) whenever the user has more stuff running than physical RAM,
> the system's performance takes a hit from the I/O access speed
> differences between RAM and HD.
>
> This is why there's a performance gain from adding more physical RAM,
> and that this is more significant than Disk I/O - - simply put, RAM I/
> O is faster than any hard drive configuration in existance today.
>
>
> Granted, these performance gains will be an area of dimini****ng
> returns, since the RAM is displacing Disk I/O. Dimini****ng returns
> means that the first +1GB of RAM has more benefit than the next +1GB
> of RAM added, etc.
>
> Thus, when someone like "Rita" claims that anything more than 1.5GB of
> RAM is a "waste", they're merely speaking for their level of personal
> need. Thus, I'm not surprised to hear "Rita" claims.
>
> For everyone else, the metric to use is to examine one's Page-In/Page-
> Out ratio after a period of typically serious use of Photoshop, etc,
> to then decide if the frequency with which the OS hits the HD due to
> lack of Physical RAM is acceptable to them or not.
>
> The exercise is left up to Rita to post a screenshot of their Page-In/
> Out values so as to back up that pesky little "Anything more than
> 1.5GB is a waste" claim. Its trivial to do this on a Mac. :-)
No doubt you'll get a flippant answer that completely dodges the issue.
--
john mcwilliams
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