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
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac - Rebooting to free the RAM?


Post Reply New Thread Subscribe

 
Thread Tools
Thalias

 
Member Since: Jan 17, 2007
Location: Vancouver, WA
Posts: 8
Thalias is on a distinguished road

Thalias is offline
One thing I really love about my Mac is that I rarely have to reboot it. However, by using a little system monitor in my toolbar I've been noticing that the amount of free RAM goes down when I use an app, but hardly goes back up at all when I close it. Should I be restarting periodically to free up my RAM? Thanks!
QUOTE Thanks
NanoBite

 
Member Since: Oct 27, 2005
Posts: 4,714
NanoBite is an unknown at this point

NanoBite is offline
G'day Thalias,

I recommend logging out if you're able to. Your Mac will run smoother for it. I log out whenever I know I'm going to be away for a while.

Doing so should free up some RAM, IMHO.
QUOTE Thanks
Kash

 
Kash's Avatar
 
Member Since: Dec 03, 2006
Location: Irvine, CA
Posts: 9,385
Kash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant futureKash has a brilliant future
Mac Specs: Black Macbook C2D 2GHz 3GB RAM 250GB HD iPhone 4 iPad 3G

Kash is offline
Simple question, but when you "close" the program, do you just hit the red "x" in the upper left corner or do you quit by clicking on the application name in the Taskbar on top and selecting the Quit option (or using the Apple + Q shortcut)?

If you're just hitting the little "x", then you're not really closing the program, which would explain why your RAM isn't getting freed up.
QUOTE Thanks
NanoBite

 
Member Since: Oct 27, 2005
Posts: 4,714
NanoBite is an unknown at this point

NanoBite is offline
Quote:
My advice: log out once per day. You might just log out at night when you’re done using the computer, leave the machine running, then log in again in the morning. (It’s ok to let the monitor/display/screen/whatever-you-call-it go to sleep.)


This accomplishes a couple of things, at least:

Quote:
If you generally run the same software applications most of the time, it will clear out a lot of memory and give those apps a chance to “start over.” This is a very good thing for nearly every modern program: most will run faster, and it will put a stop to some “weird behavior” (that’s the technical term).
Leaving your Mac running (but logged off) at night allows the system (via a utility called cron that you’ll never see) to run some system maintenance utilities: another minor performance boon, and it will save a little space on your hard drive. (I actually don’t know if Windows does anything like this also.)
QUOTE Thanks
Alexis

 
Alexis's Avatar
 
Member Since: Apr 20, 2006
Posts: 2,255
Alexis is a jewel in the roughAlexis is a jewel in the roughAlexis is a jewel in the rough
Mac Specs: Al iMac 20" 2.4Ghz Intel Core 2 Duo

Alexis is offline
Does Cron not run if you're not logged off?
QUOTE Thanks
mac57

 
mac57's Avatar
 
Member Since: Apr 29, 2006
Location: St. Somewhere
Posts: 4,560
mac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant future
Mac Specs: iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM

mac57 is offline
There is memory and there is memory. Generally, *nix systems (and this includes Mac OS X) consider that unused memory is wasted memory. In general, they will fill up available memory over time on purpose, caching stuff there to improve performance. This is not a bad thing. Memory usage will creep up over time, and this is design intent.

On the Mac, there are four types of memory buckets reported on:

Wired memory
This is memory that applications or the system needs immediate access to, so it can't be cached to disk. It will vary depending on what applications you're using.

Active memory
This is memory that is actively being used.

Inactive memory
This memory is no longer being used and has been cached to disk. It'll remain in RAM until another application needs the space.

Free memory
This memory is not being used.

It is probably the Inactive memory that you are seeing going up? This is what happens on my system over time. Inactive memory goes up and up, and this seems to have no performance implications at all - just standard *nix memory management.

If it is wired memory, that is a different matter.

My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
I was on the Mac-Forums honor roll for September 2007
QUOTE Thanks
Thalias

 
Member Since: Jan 17, 2007
Location: Vancouver, WA
Posts: 8
Thalias is on a distinguished road

Thalias is offline
Thanks everyone!

Kash: No, I've learned enough about Macs so far to know that you have to manually quit the program for it to really be closed, and that's what I do (most of the time.).

I'm going to try logging off every night now, instead of just putting it to sleep. Thanks for the advice everyone!
QUOTE Thanks

Post Reply New Thread Subscribe


« Installed "N" adapter in to the Mini | Buy Now Or Wait? »
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
iBook RAM questions Mac4Music Apple Notebooks 1 10-20-2006 10:07 PM
MHz speed of PC2-4200 RAM??? ex_mcse Apple Notebooks 1 10-17-2006 01:37 PM
RAM upgrade to 1GB - prices? callisto9 Apple Notebooks 5 09-20-2006 08:21 PM
Something is weird with the ram in my Mac Pro. macgeek2005 Apple Desktops 8 09-09-2006 11:19 PM
Powerbook Ram Biturbo V12 AMG Apple Notebooks 1 06-01-2005 07:48 PM

All times are GMT -4. The time now is 02:27 AM.

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?