Memory normally refers to RAM. Temporary, high-speed storage used to keep frequently accessed information available for use and helps keep the computer running smoothly

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215 views

How do I monitor the total physical and virtual memory usage of a process and all of its descendants?

From the command line, how would I get the total physical and virtual memory usage of a process and all of its descendants (not just 1st-level children)? This is useful when you want to monitor the ...
2
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1answer
14 views

Does my 21.5 inch Late 209 iMac support mixing and matching memory modules?

I have looked at this question, and apparently my iMac does support mixing memory sizes. However, when I installed 2 4GB memory modules and 2 2GB memory modules, when I clicked  → About This Mac → ...
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1answer
47 views

Macbook Pro (5.1 Model Late 2008) 16GB RAM upgrade

This question is to unmircea or anyone else who has upgraded ram in a Macbook (5.1 Model Late 2008)... where you able to run 16GB of ram in your 5.1 MacBook Pro (5.1 Model Late 2008) 8GB or regular ...
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1answer
34 views

2011 27'' iMac kernel panic

My iMac has been giving Kernel Panic recently. its 2011 27in iMAC, and i added 8G RAM about one and half month ago. Around 2 weeks later, the error started and i upgraded the firmware. now im ...
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1answer
70 views

Memory test that fails with a different address each time

I had problems (strange patterns on the display and reboots) with my Late 2011 Macbook Pro, so I ran Apple Hardware Test on my computer, and it found memory errors. The thing is that every time I run ...
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1answer
22 views

iMac mid 2011 RAM upgrade compatability

Is this RAM going to be compatible with a mid 2011 iMac 21.5"?
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1answer
10 views

Upon boot up why is there usage in Inactive and Page In for memory?

I understand the concept behind the various memory usage, but I don't understand why there are Inactive memory and Page In upon boot up. There are no applications that have started which hasn't ...
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1answer
240 views

MacBookPro crashed with pixel disturbed screen and 3beeps

I have MacBook Pro 15-inch, Early 2011 Processor 2 GHz Intel Core i7 Memory 8 GB 1333 MHz DDR3 Once a week it crashed with beep sound ( 3 times ) beep - beep - beep Then pixel in the display ...
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1answer
715 views

Mac Mini has slowed to an unbearable crawl!

I've read a lot of other questions about speed, but my question does not seem to be answered anywhere. My Mac Mini is running so slow that I cannot see what I am typing. It takes up to 15 seconds to ...
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1answer
299 views

Memory for iMac12.1 (mid-2011)

I've found here that imac12.1 (mid-2011) unofficially will support 32 GB of RAM. Questions: Can I mix 2x2 GB with 2x8 GB of memory to get 20 GB of RAM? Will this model work with imac12.1? Thank ...
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1answer
70 views

iMac 2009 works slow

iMac (model 2009, purchased in late 2012) sometimes becomes extremely slow. I've opened the "System monitor" and discovered that there is a huge lack of RAM. But as you can see there is no app ...
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1answer
313 views

On OS X Mavericks, why does it always say my memory used is like 99% of my total memory?

I keep getting these results from Activity Monitor in Mavericks, where it seems like 99% of my memory is being used (where in the screenshot I have 10MB left). Am I just reading this wrong? How am I ...
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1answer
24 views

Memory card on iPhone

I have an sd converter for my iPad but can't find anything like it for my phone? Plan on using it to view shots from a trailcam while in the woods
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1answer
667 views

Mac has become insanely slow : Processes SystemUIServer, UserEventAgent and loginwindow using a lot of memory

I have been using my Mac for for many months without any problem. But recently all of a sudden the Mac became insanely slow. I opened Activity Manager to see what was happening. For three processes ...
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1answer
45 views

Where can I find ALL of the memory specs for the Mac Pro?

I have a Mac Pro (Mid 2012) with stock RAM, and I'm aware of the usual info about what it's using, e.g. DDR3 1333 PC3-10600E SDRAM, but I want to know more. I understand there are specs such as ...
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1answer
305 views

Can I use 8GB 1666 MHz DDR3 on Macbook Pro Early 2011 15?

I want to upgrade my RAM of Macbook Pro Early 2011 15 inch. On apple website it says to use 1333 Mhz, unfortunately I cant find it in my local market , they are offereing 1666 Mhz of 8GB and saying ...
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1answer
44 views

Should I reinstall the OS after restoring from time machine?

A while back, my MacBook Pro died. It was an older machine (2007 I think), with a Core 2 Duo processor. I was doing regular backups through Time Machine. I bought a I7 MBP, and re-staged the new ...
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1answer
232 views

MacBook Pro has to recover from Safe Sleep after 50% of all sleeps, although power is connected

When I wake my MacBook Pro from sleep it sometimes has to recover from Safe Sleep, even though the power is connected. I have installed 16 GB (2x8) RAM myself on my MacBook, however 8 GB is the max ...
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1answer
3k views

Mountain Lion is slow in VMware 8

Mountain Lion works very slowly in VMware 8. XCode 4.5 is terribly slow. I tried the following things to speed things up: Installed VMware tools from darwin.iso provided with the vmdk file of ...
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0answers
882 views

vm_compressor_mode (vm.compressor_mode) values for enabled compressed memory in OS X

Background In Super user, with an accepted answer: Disable compressed memory in Mac OS 10.9 Mavericks? Also in Super User: how to get memory compress back in Mac OS 10.9 Mavericks? – and ...
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0answers
23 views

Get RSS Memory usage from entire OS on command line

I need to get the entire count of RAM being used on a command line. I can get individual process RSS usage using ps -o rss= -p #{pid} How do I get all the memory usage for the entire system on the ...
2
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0answers
44 views

What causes playing a video in browser to take up all the RAM?

I've been noticing lately that when I'm playing a video on my Mac from say Hulu, Netflix, Youtube, any video site via a browser, the computer gets extremely laggy for 5 minutes and then acts normal. ...
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0answers
210 views

Weird graphics issues after waking MacBook up

After locking my Mac and waking it up a few hours later this is how it looks: Also, some of the icons look weird after restarting the system (for example not fully rendered time machine icon: ) ...
2
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0answers
258 views

How much will upgraded processor and RAM affect battery life?

I'm considering purchasing a new Macbook Air, and one of my main goals would be to maximize battery life. If I upgrade the standard processor (from 1.3GHz Dual-Core Intel Core i5 to 1.7GHz Dual-Core ...
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0answers
80 views

iOS Memory Mangement Technique

I was wondering what kind of technique does iOS use? Single contiguous allocation Partitioned allocation Paged memory mangement Segmented memory mangement I believe it is partitioned allocation, but ...
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63 views

Reduce Maverick Memory Footprint

I'm using a macbook air 2014 with 8GB, also running Parallels a lot so wanted to reduce memory usage of OSX. Already disabled voice dictation that freed up around 500 mb. Any other tricks/tweaks?
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79 views

Macbook Pro Late 2011 stuck at 0.8 GHz

I have been experiencing a lot of problems with my Macbook Pro slowing down and crawling through small tasks like getting mail and opening Launchpad. I have 8 GB of 1333 MHz DDR3 memory and a 2.2 GHz ...
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0answers
171 views

Is there a way to limit Firefox / Chrome RAM usage?

I would like to know if there is any kind of setting to limit the RAM browsers can use. It's annoying that even if you have 30GB of RAM available eventually it will be all used by the browser.
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234 views

OS X startup disk has no more space available for application memory

I am running a simulation that deliberately uses a lot of memory. In fact, more than the available RAM and so the program should use swap space. However, after 60 GB of swap space are used, I get the ...
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0answers
188 views

MacBook unusable due to kernel_task

I've disabled hibernation, and removed the sleep image file. I shutdown my Macbook Pro (15" retina), unticked the box to open windows on restart, and started my MacBook again. As soon as I'd logged on ...
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0answers
585 views

OSX - How to find out which process eats up memory?

My MacBook Pro has 8G RAM. Recently memory leak offen happened. Page outs and swap used kept increasing. The last time it used ~8G swap space. But in Activity Monitor, I can't find any process has a ...
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0answers
158 views

How do I ensure smooth video and music playback without breaks?

I'm using a MacBook Pro from 2011 with 4 GB RAM and I'm experiencing problems with music playback in iTunes (music stops and starts periodically) and video playback does the same. I've read many ...
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367 views

How to down-clock RAM?

My Mac (Mid 2009- MacBookPro5,5) laptop installing OS 10.8.2. Currently, it is using 2 x 1GB (1066 Mhz). My friend gave me 2 x 2GB (1600 Mhz) of his 2012 Mac. After installing 2 x 2GB (1600 Mhz) on ...
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0answers
902 views

Close down all background iPhone apps without clearing task switcher (Jailbreak)

I have a 3GS running 5.1. Memory management is key to keeping it running smoothly. I've tried: SBSettings processes. Clears apps one by one and clears memory - and leaves them in the task switcher. ...
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0answers
94 views

memory bandwidth for 13.3 macbook pro early 2011?

I have a 13.3 MacbookPro early 2011. Stock memory is 2GB x 2 PC3-10600 DDR3 1333 MHz. Now I want to upgrade RAM as 4GB x 2. Can i buy a memory which is PC3-10666 1333MHz, or do i have to buy ...
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0answers
109 views

iMac boots with one RAM, but not two

I've got a curious little problem going on over here. I've got an old late 2006 iMac (the white one). Was sportin' 1gb of ram, so I went and bought some more (4gb). Actually I bought two of those, and ...
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0answers
191 views

Sum of all processes' real memory not equal to used memory?

I wonder why the sum of all processes' real memory listed in Activity Monitor is not equal to (MUCH less than) the used memory?
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0answers
266 views

memtester hangs in single user mode

Trying to test as much of my 8 GB of RAM as possible with memtester, I encountered a hangup in single user mode, but not when running memtester on my admin user account. vm_stat is used to calculate ...
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0answers
14 views

Advice in buying second hand Mac Book Pro?

i'm windows and linux user. Basically, i'm interested in mac because i'm web developer. Some of the development tools are run well on macs. Requirement (if required) I'm going to buy it in ...
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0answers
17 views

800 MHz DDR2 registers as 667 MHz

I upgraded my mid 2009 macbook 5,2 with two fresh DDR2 RAM, one 2 gig 800MHz and one 4 gig 800 MHz. When plugging these in one at a time they register nicely as running at 800, but both at the same ...
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0answers
131 views

Why does speech recognition take up 1 GM or RAM suddenly? And GMail in Safari 738 MB?

I did enable speech recognition just in case, but very rarely use it, and I did not remember even accidentally activating it since bootup. Now I simply have a few apps running under Mavericks, and I ...
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0answers
49 views

How to prevent PressAndHold from loading?

I have already disabled PressAndHold through terminal, but I see that it still appears as a process on Activity Monitor. It is taking 2.9 MB for me, but I want it to stop and not to begin at all. When ...
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0answers
692 views

How do I get my iPad to show up under DEVICES in iTunes 11.1.3?

I've been having problems seeing my iPad (and my iPhone, haven't tried my iPod) under the DEVICES section on the left (where the STORE, GENIUS, PLAYLISTS, LIBRARY are located) in iTunes 11.1.3. It ...
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0answers
256 views

Memory runs out issue with a Mac Air 11.6", Mac OSX 10.9

I use word 2010 a lot, with medium length documents (10-20pages) It sometimes takes 2 gigs of RAM just for word. Why is that? none of the files themselves are over 50mb. The Mac then freezes or ...
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0answers
374 views

Safari going nuts in Mavericks - iMac totally unresponsive

Is anybody else experiencing Safari going crazy on Mavericks? I have just unlocked my iMac (Model 2012, 12GB RAM, 2TB HDD, Core i7 3.4GHz) and everything was slow motion. The hard disk was spinning ...
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0answers
110 views

Crash analysis on MacOS X

I see irregular crashes of programs on a MacBook Pro running MacOS 10.6.8 since July the 9th: 13 crashes. Most of them occur when the screen is locked with the screen saver. The last system ...
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0answers
264 views

Black Screen after installing RAM in MacBook (early 2008)

I've tried installing 2 x 2gb DDR2 PC2-6400 modules into an early 2008 MacBook. After installation the machine booted into a black screen, with no chime. I tried reseating the RAM, same problem. I ...
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0answers
282 views

iPhone 4 with 6.4GB of free storage asks to change storage settings

My one week old iPhone 4 warns me to change my settings in storage when I go to add my music. I have no music, videos, pictures,... stored on my iPhone. The only thing I've got, are 4 simple apps. Is ...
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0answers
55 views

Is there a way to monitor the stack of execution in order to find the longest hangs?

Related to this unsolved mystery: apple.stackexchange.com/questions/62416/why-do-i-get-serious-execution-lag-on-clicks-application-switching-and-general I'm wondering if there's a way to see which ...
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0answers
74 views

Crashes and hangs after memory DOWNgrade

I recently lost one of my SO-DIMM memory modules on my 20" iMac (2.4GHZ Core 2 Duo alu), and now my iMac is back on 2GB memory from 4GB. Both were ValueSelect (DDR2 667MHz 200-pin) modules from ...