Photoshop CS3 multithreading
Malcolm Smith
multithreding and as such should make good use of a Quad Core CPU chip - has
anyond done any tests or have any comments on this?
Malcolm
Malcolm Smith
a quad core machine so will see for myself.
Malcolm
"Malcolm Smith" <malc...@cyberone.com.au> wrote in message
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kk
"Malcolm Smith" <malc...@ember-razement.com.au> wrote in message
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Dave
encore to the audience
that is the way all top posters should be treated
Dave
pico
<malc...@ember-razement.com.au> wrote:
>Not a single reply to my OP - very dissapointing. Never mind I have
>ordered
>a quad core machine so will see for myself.
Illustrator has multithreading, but I find no mentions of Photoshop CS3
having it. How could you tell even if you did have a quad processor
machine?
Warren Sarle
In article <13kjkf4...@news.supernews.com>,
Very simple. Run something and see how many of the cores/processors
are busy.
Some things in Photoshop CS3 are multithreaded and some are not.
For example, .psd I/O is multithreaded, but .tif I/O is not.
--
Warren S. Sarle SAS Institute Inc. The opinions expressed here
sas...@unx.sas.com SAS Campus Drive are mine and not necessarily
(919) 677-8000 Cary, NC 27513, USA those of SAS Institute.
pico
news:ficu07$soj$1...@foggy.unx.sas.com...
>> Illustrator has multithreading, but I find no mentions of Photoshop CS3
>> having it. How could you tell even if you did have a quad processor
>> machine?
>
> Very simple. Run something and see how many of the cores/processors
> are busy.
>
> Some things in Photoshop CS3 are multithreaded and some are not.
> For example, .psd I/O is multithreaded, but .tif I/O is not.
That is all there is to it?
I have a MacPro with 4 processors and according to the monitor they are
always busy when a process is busy. No processor is ever idle. Very often
they are alike in response.
Warren Sarle
In article <13kkb4p...@news.supernews.com>,
On Windows, when I save a .tif file, one core is very busy, while the
others show low levels of system activity. When I save a .psd file,
all 4 cores are veru busy. Similar things happen with various filters,
that is, either one core is very busy and the others almost idle,
or all 4 cores are very busy. Of course, this is when no other
applications are running.
Perhaps Photoshop has more algorithms multithreaded on Macs than on
Windows. Perhaps Macs are better at distributing system calls
across cores/processors.
pico
> On Windows, when I save a .tif file, one core is very busy, while the
> others show low levels of system activity. When I save a .psd file,
> all 4 cores are veru busy. Similar things happen with various filters,
> that is, either one core is very busy and the others almost idle,
> or all 4 cores are very busy. Of course, this is when no other
> applications are running.
The task of saving is largely about disc-IO. No? Overlap read-writes are the
task of the OS.
> Perhaps Photoshop has more algorithms multithreaded on Macs than on
> Windows. Perhaps Macs are better at distributing system calls
> across cores/processors.
Dunno. I would look to your direction to tell me how to tell for certain. I
do know that with the MacPro I can use a whole lot more RAM than I can with
my WindoZe XP-Pro system (not the server version.) But still, when it comes
to terminal-IO I don't see where multithreading can be _significantly_
helpful.
I leave it to you Warren. I know you are a seasoned veteran with PS.
Respectfully,
Pico
Malcolm Smith
a new post.
Regards
Malcolm