PD9 64bit and RAM Useage

PatC

Senior Member Location: Suffolk UK Joined: Nov 17, 2009 14:00 Messages: 156 Offline

Solved by

Feb 06, 2011 07:33

Hi,

Yea ! 64 bit applications will allow you to fully utilize RAM beyond the 3GB boundary. Yea !

------------------- WHEN ??? ------------------ HOW ???? ------------

System RAM useage for desktop and background chores about 1.15GB.
Start PD9 and RAM useage increases to 1.4GB, load library with hundreds of video clips
pushes RAM useage up to 1.72GB Max.
I had PD9 produce a 6GB, 1hour video (unedited camcorder footage) just for a test.
I could not get PD9 to push my system RAM useage past about 2.5GB.
Placed 10GB of video clips on timeline, add transitions and test produce in various
formats still low RAM useage, Max 2.82GB. (1.15GB in background and 1.6GB for PD9)

PD9 does not appear to demand lots of RAM.
How do we justify telling newbies "Yes, you need as much RAM as you can afford".

Has anybody actually managed to make PD9 64bit use more available RAM?

OK I can use the excess RAM for a RamDisk, maybe the best way to utilize it, provided
I can find out what I need to put in the RamDisk....

Patrick with 12GB (3GB slightly shop soiled, 9GB never used...)

Robert2 S

Senior Contributor Location: Australia Joined: Apr 22, 2009 05:57 Messages: 1461 Offline

Feb 06, 2011 07:50

Hi Pat,

It isn't so much the size of your video to be produced that uses your ram, it is what you are asking PD to do to your videos, like stabilization, colour change, noise reduction, special effects, things that need a lot of calculations done.

The maximum use I get on my computer is 3.8 gig even when really pushing my editing. To tell you the truth I think none of the recent 64 bit software is properly coded yet to really use all the power of the modern hardware available. My youtube channel====> http://www.youtube.com/user/relate2?feature=mhsn

PatC

Senior Member Location: Suffolk UK Joined: Nov 17, 2009 14:00 Messages: 156 Offline

Feb 06, 2011 08:15

Hi Robert

Yes I think you are right on both fronts, the hardware is way ahead of the software and adding the
special effects etc. loads up more (different function) parts of the program into ram.

At 6GB I think you probably have the correct amount of RAM when it comes to being cost effective.

By the way, same setup as you but with the ATI HD5870 Card. I think I would probably go Nvidia next time.

Patrick

All vodi

Senior Contributor Location: Canada Joined: Aug 21, 2009 11:24 Messages: 1431 Offline

Feb 06, 2011 15:37

I can confirm this. I've run various AVC files in projects which are both memory and CPU hoggers and PD9 rarely uses more thyan 4 Gbytes, Win 10, i7

JoeDirector

Newbie Joined: Feb 06, 2011 14:12 Messages: 2 Offline

Feb 07, 2011 00:19

This is definitely a bit frustrating. I did a couple of benchmark tests with SiSoft Sandra to compare the data transfers rates of a 'decent' hard drive setup compared to decent RAM setup.

With two 7200RPM SATA3 hard drives striped with RAID0 (a gain of up to 90% throughput on a good day), I can clock in at 207MB/s average transfer rate while reading across the platters end to end.

Compared to the 21GB/s I can get out of my RAM, being forced to rely on a bottleneck 1/100th of the speed possible in the system is just disappointing. I hope that future updates try to address this issue.

I'm going to try to increase my NTFS memory usage (http://www.ghacks.net/2010/07/08/increase-the-filesystem-memory-cache-size-in-windows-7/ is a good article on it) or installing a RAM disk for my workspace files. Hopefully I'll have something to report back.

HouseofMac

Newbie Joined: Nov 26, 2008 02:50 Messages: 14 Offline

Feb 07, 2011 05:33

Hi Can concur on RAM usage - I just got a new PC i7-2600K - 8gb RAM. Produced a video (60 min of Full HD 60fps) and RAM usage barely cleared 2GB. Thought something was wrong so I loaded up the PC -

Producing HD Video
Watching DVD
Watching TV on Winfast PVR2 Tuner card
Run full virus scan

All at the same time

PC chugged along nicely and just got over 4GB mem usage while CPU was on 100% on all 8 cores.

My thoughts 6-8GB more than enough and 4 will do nicely.

Regards
Mac

All vodi

Senior Contributor Location: Canada Joined: Aug 21, 2009 11:24 Messages: 1431 Offline

Feb 07, 2011 17:28

If one is using an ATI graphics card there is a new monitoring application (AMD System Monitor) available from the same pages where the ATI Catalyst (drivers) are found. It shows in real time CPU, graphics, and memory allocation :

http://sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx

This message was edited 1 time. Last update was at Feb 08. 2011 14:39

Win 10, i7

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Feb 08, 2011 20:57

I have no knowledge of PD9's internals, but it is interesting that it exists in both 32- and 64-bit versions. There are three obvious possiblities:

The two versions handle memory in vastly different ways -- extremely unlikely, because it is prohibitively expensive and error-prone. Been there, done that.

The two versions handle memory in exactly the same way, and have the same limits. That would mean that the 64-bit version does not explicitly use more memory than the 32-bit version. It would probably benefit in other ways.

The two versions handle memory in exactly the same way, but do not have the same limits. That would mean that somewhere there is a project that works in the 64-bit version but not the 32-bit version.

I don't know what about a video project would use memory, although I'd think the number of tracks would be key. Jerry Schwartz

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Feb 08, 2011 21:39

Quote: The two versions handle memory in exactly the same way, but do not have the same limits. That would mean that somewhere there is a project that works in the 64-bit version but not the 32-bit version.

This link might interest you. It explores your thought above a little bit.
http://forum.cyberlink.com/forum/posts/list/15/14677.page#70685

Jeff

Mingy

Newbie Joined: Nov 18, 2010 11:14 Messages: 31 Offline

Feb 09, 2011 14:45

For what it is worth, when I have rendered 1080p 60 video into 1080x1920 24mbps HD with image stabilization, on my i7-2600K system, I had 8 threads at over 90% CPU utilization and just over 4G memory used.

My system has 16G, so maybe I overbought, but I'd image that if I need over 4G and I could only access 3G, things would be an awful lot slower

QuikScholes

Newbie Joined: Nov 05, 2010 04:11 Messages: 35 Offline

Feb 09, 2011 14:58

I've got 8GB of RAM and never got close to using it all, I suppose it's like filling the tank to drive around the corner, if it doesn't need it it doesn't use it.