How much memory should I have in my shiny new G5's to run Catalyst comfortably?
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How much memory should I have in my shiny new G5's to run Catalyst comfortably?
Mike was supposed to have started doing some tests.
Ill try and get him to report here.
I only use 512MB in my development machine.
Hard disc speed is the main performance determinant.
Plus you shouldn't be running any other apps simultaneously with Catalyst.Quote:
Originally Posted by tylerr
The stock 512 MB is fine.
Enjoy your shiny new toy.
Also, to get that last bit of oomph, go into Energy Saver, under Options, turn Processor Performance to Highest instead of the default Automatic. Buys you an extra few percent of hosspower.
-mike
i already posted on how to set the performance in the energy saver,
http://chaldee1.gotadsl.co.uk/~richa...read.php?t=112
So if 512 of ram is enough are the stock Serial drives fast enough? I was going to add a second drive for content perhaps a MAXTOR 250GB SER ATA 7.2K 8MB SATA
Sound good?
Tyler
no.
you must get a sata raptor drive or go scsi.
no 7200 rpm drives are good enough or fast enough to playback more than 2 layers at 30fps.
http://chaldee1.gotadsl.co.uk/~richa...ghlight=raptor
So if i need 10,000 RPM drives I can only get a 74 GB drive. Can I put an internal SCSI drive inside a G5 or will it need to be external? We currently have over 100 GB of stock material we keep on our catalysts.
Tyler
Mike you want to answer this?Quote:
Originally Posted by tylerr
or danny?
If I were to use 10000 rpm SATA drives can I raid them together inside the G5 to make one large drive?
What kind of 2 layer frame rates can I espect with only a 7200 RPM?
Tyler
yes you can stripe two SATA drives together in a RAID using Apple Disk Utility. You can actually stripe 4 SATA drives using wiebetech's G5 Jam...but it doesn't help you run multiple movies any more smoothly. It's more of a seek time issue, how fast the read/write head can whip around reading bits of 3 or 4 movies a bit at a time. Imagine a record player's needle jumping around trying to play 1 snippet of each of 4 songs before it had to go read a snippet of one of the other songs....
then you get an idea of what your hard drive is doing.
and 2 drives can be slower than 1.
so you have to be careful.
because data has to be read off both drives.
Is it conceivable that Catalyst could be configured for each layer to use a separate drive?Quote:
Originally Posted by samsc
If you configured Catalyst to read each layer from a sep. drive you would need 4 times the storage space and have to maintain 4 copies of the same material. Sounds like a pain to me.
No.Quote:
Originally Posted by tylerr
this just doesnt work - unfortunately. this part of the mac is not multithreaded - quicktime only does one thing at once.
and the slowest drive in the system drags performance down.
if you put content on an internal drive, and on a scsi drive at the same time.
the slowest drive will pull things down.
Quote:
Originally Posted by samsc
Interesting.
i wish it worked like this. but it doesnt.Quote:
Originally Posted by tylerr
tyler isnt a new user.Quote:
Originally Posted by mdc1138
having more drives, may help you play back uncompressed movies.Quote:
Originally Posted by mdc1138
So if I did that I would have to have some kind of external HD enclosure because if I am thinking correctly there is only room for 2 internalyQuote:
Originally Posted by samsc
Tyler
wiebetech came up with this thing....Quote:
Originally Posted by tylerr
the G5 jam.
http://www.wiebetech.com/products/G5Jam.html
I have been trying to find a rackmount 1u scsi or serial ata solution.
havent found one yet.
There are larger rackmount cases.
granite digital have 4u scsi enclosures. as do others.
http://www.granitedigital.com/catalog/indx_scsi.htm
my single 140 gb scsi drive just got delivered.
This is the largest scsi drive size currently available.
Testing results later.
the glyphtech enclosures look promising for touring type environments.Quote:
Originally Posted by tylerr
www.glyphtech.com
They seem to have a little experience of our industries.
Correct me if I am wrong but if we go with these 15K RPM SCSI drives will be be able to mount them in the onboard slots in the G5 and just modify the case slightly to get the cables to them? In that case I will not need to provide any external storage at this point.
Tyler
i would hope so.Quote:
Originally Posted by tylerr
but the 15000rpm drives get very hot.
i bought a couple of 10k drives last week, and they dont get so hot. ( im investigating any performance differences )
at 25fps it isnt anywhere near as critical.
its running at 30fps which is harder
you really kindof need to keep the operating system on a different disc - to keep things fast.
so im looking into putting 2 scsi drives and one sata drive inside the case.
I would replace the dvd drive with another scsi drive ( or move the sata drive ).
you can get 'enclosures' to mount drives that fit exactly into the dvd drive bay.
richard
if you are running everything at 25fps its almost possible to use only a single 15k or 10k drive.Quote:
Originally Posted by samsc
Correct but in my opinion if we are going to spend the $$ I would like to spend a little more and get the best. I thought you were saying earlier that the slowest drive would slow the whole system down. So wouldn't a SATA drive slow the system down if I had 2 15k SCSI drives for media?
I also want to keep the CD drive intact. I think I would add one of those internat mounting options for the SATA drive then. However is there anyway to find out if the 15k drives get too hot for the G5's fan setup?
Have you talked to Andy?
i think round scsi cables might work.Quote:
Originally Posted by tylerr
http://chaldee1.gotadsl.co.uk/~richa...read.php?t=166
so you dont have to modify anything.
but you might.
i have some on order.
the os drive has no effect on performance.Quote:
Originally Posted by tylerr
testing it. measure the temperature - leave it running for a couple of days - and use you hand to see how hot it gets - or use a thermometer.Quote:
Originally Posted by tylerr
as long as you dont put any movies on it. it wont affect anything at all.Quote:
Originally Posted by samsc
someone did a review of the g5 jam.
i may have to get one.
http://www.barefeats.com/hard36.html
there was a rumour that the next mac revision might have more internal drive bays -- but they havent turned up yet.
and one should never rely on rumours - especially apple ones.