New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
OS X - Operating System General OS operation information and support

OS 10.4 - Virtual Memory Question


Post Reply New Thread Subscribe

 
Thread Tools
menace3054
Guest
 
Posts: n/a

My computer says it has 4.6 GB of virtual memory. Is that normal?? I restarted, and emptied cache and it still says that seems like a little much to me
QUOTE Thanks
Avalon

 
Avalon's Avatar
 
Member Since: Jun 25, 2004
Location: Luxemburg, Europe
Posts: 1,779
Avalon is just really niceAvalon is just really niceAvalon is just really niceAvalon is just really nice
Mac Specs: PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB

Avalon is offline
No, that's totally normal...Unix system have a very different way of managing virtual memory than Windows does
QUOTE Thanks
falltime
Guest
 
Posts: n/a

Quote:
Originally Posted by Avalon
No, that's totally normal...Unix system have a very different way of managing virtual memory than Windows does

Yes... Windows allocates a set amount of virtual memory for a user session, by default it is set to automatic and it's adjustments are dependent on the amount of RAM you have.

The OSX VM system is quite different - it's not really so end-user oriented, and it doesn't really take into account the amount of RAM you have. It's set up to make adjustments automatically for applications and sets up a memory "road-map" that the application can use as long as it's loaded.

Both systems have their pros and cons... Neither of them should or need to be messed with by most users, especially on OSX (which is why there isn't a standard-level interface that is easily accessible). Advanced Windows users on the other hand find it much easier to locate and modify the VM settings, and are able to make modifications to improve certain levels of performance (especially in newer memory-hungry games like BF2 where the constant swapping of mass amounts of textures can sometimes find its way into the page file and cause a uneeded amount of disk usage and lag)
QUOTE Thanks
AlexN
Guest
 
Posts: n/a

I have another question. In Finder, it shows that the swapfile is only 64MB, but the Activity Monitor says the VM size is 3.95GB. I only have 1.5GB physical memory; if the swapfile is only 64MB, how could the VM size be 3.95GB?

Why?
QUOTE Thanks
Avalon

 
Avalon's Avatar
 
Member Since: Jun 25, 2004
Location: Luxemburg, Europe
Posts: 1,779
Avalon is just really niceAvalon is just really niceAvalon is just really niceAvalon is just really nice
Mac Specs: PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB

Avalon is offline
Quote:
Originally Posted by falltime
...Advanced Windows users on the other hand find it much easier to locate and modify the VM settings, and are able to make modifications to improve certain levels of performance (especially in newer memory-hungry games like BF2 where the constant swapping of mass amounts of textures can sometimes find its way into the page file and cause a uneeded amount of disk usage and lag)
Giving more memory to programs that need it...somehow reminds me of the old days in OS9. :cool:
I know it's not the same thing, but it sounds similar. :p

@AlexN:
The VM is for the whole system, not for the Finder alone. Even when you have no apps running, there are a bunch of system services that run, and therefore get VM allocated. On a UNIX/Linux system it is the same, by the way...the VM size looks huge.
QUOTE Thanks
AlexN
Guest
 
Posts: n/a

Quote:
Originally Posted by Avalon
@AlexN:
The VM is for the whole system, not for the Finder alone. Even when you have no apps running, there are a bunch of system services that run, and therefore get VM allocated. On a UNIX/Linux system it is the same, by the way...the VM size looks huge.
I said in Finder, it shows the swapfile is only 64MB, not just the Finder. The location of the swapfile is system-wise. It's /private/var/vm/swapfile0
QUOTE Thanks

Post Reply New Thread Subscribe


« Quartz Extreme and Core Image/Video. | Osx 10.1.5 »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
imac memory question for memory men brendan67 Apple Desktops 6 09-06-2005 08:23 PM
Mini Memory Upgrade question RogerC Apple Desktops 2 07-10-2005 06:43 PM
How much RAM is enough? misskool Apple Notebooks 43 05-05-2005 03:31 PM
G4 Yikes PCI Memory Question flowforth Apple Desktops 4 01-16-2005 06:09 AM
Power PC G3 Memory question Malibu Other Hardware and Peripherals 1 10-13-2003 08:54 AM

All times are GMT -4. The time now is 11:18 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?