why does HD space decrease during uptime?

jackc

macrumors 65816
Original poster
Oct 19, 2003
1,489
0
I think it has to do with virtual memory, but I am stoopid. Why is it so much (several GB)? Can you give me the layman's version, and is restarting the only way to free up the space?
 

mad jew

Moderator emeritus
Apr 3, 2004
32,194
6
Adelaide, Australia
Yeah, it's paging files. It's normal and there's not much point in restarting; it's just your machine using your hard drive as a pretend version of RAM. If you're getting a lot of beachballs and everything is a bit slow, then you may need more RAM. Also, make sure you keep at least 8GB of free space available, taking into account Virtual RAM will use some space no matter how much RAM you have. :)
 

Corrosive vinyl

macrumors 6502
Sep 22, 2006
473
0
okay, so if I am using a ton of virtual ram (2.8 GB just running finder, safari, ichat) and then upgrade my reg. RAM the problem of using up a lot of HDD space and overheating CPU might flare back down to normal because the burdon would be on the more ram instead of in vm?
 

Str8edgepunker

macrumors 6502
Nov 4, 2001
410
0
Philadelphia, PA
Well not really, I think that those vm statistics in activity monitor determine the max amount of virtual memory that they can use, not the size of the actual page file. Someone correct me if I'm wrong.
 

66217

Guest
Jan 30, 2006
1,608
0
okay, so if I am using a ton of virtual ram (2.8 GB just running finder, safari, ichat)...
Is this really too much?

Mine is 15GB. Does this means something is wrong with my Mac? I have 2GB of RAM. I thought VM size was non-important.
 

jackc

macrumors 65816
Original poster
Oct 19, 2003
1,489
0
Yeah, the only reason I asked is because I'm booting from a partition that I made a little too small (using SuperDuper), otherwise it wouldn't be a big deal. I wanted to avoid partitioning again until I get a new computer. After I cleared out some junk I should be alright/