Linked Questions

2
votes
1answer
2k views

Why is my inactive memory not getting free? [duplicate]

When my MacBook Pro (13" 2010, Intel C2D 2.4 GHz, 4GB RAM 1067 MHz DDR3, running Snow Leopard) runs out of free memory, instead of releasing inactive memory (which is mostly about 500 - 1000 MB), it ...
106
votes
53answers
19k views

What features of Mavericks are beneficial to you?

This question serves to share and collect the enhancements that make a large difference to how you use your Mac. Please post one feature per answer. Please also check to see if your answer has ...
56
votes
7answers
67k views

What is wired memory?

I'm trying to figure out what is using all of the memory in my Macbook Pro running OS X Lion. I have 8 GB of memory total. When I quit all active programs except Finder and Activity Monitor, then run ...
17
votes
7answers
71k views

Mavericks unusually high RAM usage

I thought Mavericks was suppose to utilize RAM memory better, thus run smoother. Running ML on Mac mini 2012, with 16GB RAM...always running smoothly even with over a dozen apps running. Now, after ...
21
votes
5answers
16k views

What does it mean if I have lots of “Inactive” memory at the end of a work day?

After a day's of work at my MacBook Pro running Mac OS X 10.6.5, Activity Monitor shows that the majority of my computer's 8 GB of memory is "Inactive", and only a tiny sliver of the pie chart is "...
24
votes
5answers
102k views

Why does OS X Mavericks block the purge command in Terminal?

When I try the purge command on my terminal, OS X Mavericks gives me the following message: Unable to purge disk buffers: Operation not permitted This hasn't been the default behavior until now. I ...
12
votes
3answers
19k views

How does memory management work in Mac OS X?

I am a university student who has been trying to write a compare and contrast paper between how Windows, Linux, and Mac OS X manage memory. For instance, with Windows, it's physical memory (RAM) and ...
15
votes
2answers
5k views

Can I force my Mac to make better use of the inactive memory?

I use mysql and it takes up to 2.5 GB of my ram. I checked activity monitor and saw that I have 1GB of inactive memory but it never changes even if I have only 10MB active free memory. Is there any ...
18
votes
2answers
10k views

What is memory pressure, and how do I relieve it?

I have had my machine for more than a year now, and I'm looking at Memory Pressure in the Activity Monitor. What is this memory pressure and How do I "relieve" this memory pressure from my system? ...
3
votes
2answers
17k views

How to specify command to always run as root?

In Mountain Lion, I frequently used a simple automator app called "Purge Memory" which just ran "purge" in the command line. I really enjoyed cleaning the RAM, especially when buggy apps ran memory ...
1
vote
1answer
17k views

Is it OK to run -sudo purge, frequently? [duplicate]

I'm on Mavericks 10.9.2, 24GB's RAM, and my usage constantly teters on 23.95 GB in use very frequently. From what I can tell, the largest running process is 'kernel_task', and even then it's less ...
3
votes
3answers
11k views

Can Google Chrome be blamed for high RAM usage and lagging performance?

On my Mac, OS X lags substantially when browsing through Chrome. I've researched things and understand that inactive memory is part of the free memory, that can and should be freed at a moment's ...
8
votes
2answers
1k views

Trouble Understanding Inactive Memory in MacOSX

I thought that I understood how MacOSX manages memory, but recently I’ve become baffled by its performance. Here is the situation: I have a brand new Core i7 system with 8GB of physical memory ...
4
votes
5answers
5k views

Why is application switching slow on Late 2013 Mac Mini compared to early 2008 Macbook Pro?

I recently purchased a Late 2013 Mac Mini Quad Core i7 2.6Ghz with 4gb DDR3 ram, 1TB 5400 rpm drive model APPLE HDD HTS541010A9E662 running OSX 10.8.2 I used Migration Assistant to migrate apps and ...
3
votes
4answers
1k views

Any better way to purge the inactive memory?

Running purge command in the terminal to free the inactive memory isn't really what I think about Apple. Lion isn't doing a great at all when it comes to free the inactive memory. Free memory is ...
1
vote
2answers
2k views

Suggestions to make a old Macbook Pro faster?

I got a Macbook Pro I think the year 2010. How can I make it faster because,it starting to get slow. Are there Free or Inexpensive Apps or tricks to make it fast? Thanks!
1
vote
3answers
3k views

Is my hard drive starting to fail?

My MacBook Pro (mid-2012, 16GB, i7 2.3) has started to misbehave: very slow to start up and shut down application launches are slow system becomes nearly unusable when "free" memory approaches zero. ...
1
vote
1answer
3k views

5Gb of RAM being used with NO software running?

My computer (brand new) was using 12 Gb of RAM so after I was done exporting my video I force-quit everything and 8 minutes later it's still using 5Gb or RAM, is this normal?! It seems like so much! *...
4
votes
2answers
957 views

Why is my memory still inactive after purging?

I'm trying to understand how memory is allocated on my machine. I have read, and believe I understand, these posts and associated links: Trouble Understanding Inactive Memory in MacOSX, Inactive ...
5
votes
3answers
940 views

Is there any not-scary explanation for Finder's memory usage?

OS X El Capitan 10.11.6. MacBook Pro (Retina, 13-inch, Early 2015).
1
vote
1answer
1k views

How much RAM is recommended to be assigned to a virtual machine in VirtualBox?

I have installed Ubuntu in VirtualBox under OS X on a MacBook Pro. The laptop has 16 GB RAM, and I assigned about 11 GB to Ubuntu, because I thought that most work would be done in Ubuntu anyway. ...
2
votes
1answer
619 views

Huge memory leak in Mountain Lion

I recently bought a MacBook Pro Intel Core i7 with 8GB DDR3. By monitoring with htop I notice that my RAM usage sometimes goes up to 7GB, with only Google Chrome, a few iTerms a text editor and app ...
1
vote
2answers
613 views

How to find memory leaking apps in OSX 10.6.8?

I have an old 2008 MacBook with 4GB of memory. (Memory from About this Mac, everymac.com gave me a different number.) I know it's old, but it almost seems like it's slower than it should be. I have a ...
2
votes
1answer
364 views

Alternatives to purge command

I read in a different thread (How to specify command to always run as root?) that using the purge command in Terminal to free memory is not a good idea. Does anyone know an alternative way to do this ...
-1
votes
1answer
305 views

Amount of 'free ram memory', does that mean I should upgrade?

I regularly run several Java applications. There are about 4 applications that eat up a gig of RAM each(as I see in the Activity monitor). For the rest of the OS, I guess it is using another 3 gigs. ...