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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73 views

distnoted service memory leak

I have problem on Mavericks 10.9.5. When my macbook air (mid 2012) awake, it freezes on 5-10 minutes. Sometimes I keep up to show process list and I see that "distnoted" service eats all CPU time. I ...
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31 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 ...
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69 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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265 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: ) ...
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353 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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89 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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19 views

Is it possible to exclude bad memory?

I have a MacBook Air 2012 (A1466) and it developed some memory errors. It crashes every half an hour and Apple Hardware Test says "4MEM/9/40000000: 0x79eea590". Unfortunately, RAM is soldered on the ...
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90 views

Yosimite Detects Faulty RAM Module but Apple Hardware Test Does not?

I just bought a used MacPro3,1 on Amazon. The system came with Mac OS X 10.6 but I downloaded Yosimtie and it states that one of the 2GB modules is faulty. When I installed Yosemite it wiped ...
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115 views

Safari and other programs using too much RAM with barely any tabs open. Happens daily since Yosemite

I've noticed a drop battery life as well as performance from my macbook since the new Yosemite update a week ago. The performance slows down greatly, even with my 8gb of ram. Animations are very ...
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117 views

Why does OS X use swap memory when memory pressure remains low?

My system (Yosemite / 10.10) has been paging out to swap memory despite my memory pressure reading less than 50% over the last 7 days (tracked with iStat Menus). How is this possible? It would be one ...
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51 views

OS X Ram Viewer

I am starting to become an intermediate C++ programmer and messing around with memory allocation and would like to take a look what is going on behind the scenes. For instance, I would like to see ...
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110 views

Is 8gb of RAM in one memory slot possible for a mid-2009 2.53GHz MacBookPro5,4?

I have a mid-2009 2.53GHz MacBookPro5,4 and recently bank 1 stopped recognizing any ram installed in the slot (similar to this issue https://discussions.apple.com/thread/4263981). I originally ...
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302 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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137 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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491 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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119 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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258 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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809 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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203 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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519 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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984 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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111 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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114 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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82 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 ...
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232 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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283 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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3 views

iTunes and iPhone disagree on memory usage

There is a large discrepancy between the memory usage as reported by my iPhone and that as reported by iTunes - as well as between iTunes' Settings pages for the iPhone and the iTunes memory bar at ...
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17 views

macbook air mid 13 overheating

My set up is macbook air mid 13 with i7 processor and 8GB of ram running OS X Yosemite. Which is plenty for my use, at least it has been. I usually have no more than 3 apps running as notes, reminders ...
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54 views

Root Device UUID Error while installing Mountain Lion on VirtualBox 4.3

While installing Mountain Lion on VirtualBox, it starts booting, then stops at the line "root device uuid: xxxx-xxxxx-xxxx". I've allocated all the required RAM and memory, but even after looking ...
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112 views

“Your system has run out of application memory.” How is that possible?

(Translation it->en: Your system has run out of application memory. To avoid problems with your computer, quit any applications you are not using.) How is that possible if there are only few open ...
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36 views

When I use Vagrant it rapidly uses up a ton of wired memory. Why?

Vagrant seems to be eating up free memory, but not with active memory. It's using a ton of wired memory. My current Vagrant box is running a PHP application with MongoDB. Why would this need so much ...
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26 views

steps to get a Mac to report CPU and memory load via SNMP?

My group runs a bunch of Mac Pros and xServes of various flavors, and being a fairly recent hire, I am getting up to speed on how to monitor them properly. We use SolarWinds NPM and SAM, and monitor ...
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191 views

WindowServer/Kernel_task using over 8GB of ram causing slow down and pausing on apps

I am a developer and I have upgraded my OS to Mavericks and since then I have had the "force quit applications" window popping up with multiple apps paused. Before Mavericks I never had this issue. ...
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159 views

Multiple Google Chrome Helper.app (Not Responding) In Activity Monitor

Before i start let me say that i have turn my settings to make all plug ins ask before starting. I have a 2010 Macbook Pro 15 inch with 8GB memory from OWC and 256GB SSD samsung 840 Pro. I just ...
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28 views

Do I need to upgrade only the RAM for making Ubuntu's virtual machine quick and smooth as OS X at the same time?

I own a Mac mini Mid 2011. My Mac mini's details: 8GB RAM DDR3 1333 Intel Core i5 2,3 GHz Intel HD Graphics 3000 512 MB I have Ubuntu 14.10 and OS X 10.10 partitions with modified rEFInd, but it's ...
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53 views

Memory pressure explosion due to grunt task

So I created a quick icon using PSD to add to an existing sprite sheet that I generate using Compass SASS. When I ran grunt compile this happened to the memory pressure: OSX 10.9.5 running Mavericks ...
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87 views

Mavericks random hard freezes

I've got an old Macbook Pro 3.1 (Intel Core 2 Duo). Recently I've upgraded to Mavericks and since then I'm experiencing some frustrating random "hard freezes" (the mouse pointer just remains stuck, ...
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9 views

Interpreting Weird Swap Issue

So the output of htop on my OSX 10.8.5 machine shows some less than desirable memory stats: And believe me, my computer is accordingly VERY slow, even though all I'm running are a few shell ...
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41 views

Mac pro late 2008 8 core can only see 1.9GB memory with Windows 7?

I have 14 GB physical memory. OSX Snow leopard sees it fine and Windows sees it but it reports only 1.99 available to Windows 7/32bit. My Macbook pro sees 3.99 GB in windows 7/32 bit. ??? I switched ...
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32 views

Advanced techniques to diagnose performance problems on OS X via DTrace or other means?

I am having some severe performance problem with my OS X workstation at the moment that is proving to be exceptionally elusive. I normally can hunt things down with a handful of tools such as top or ...
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52 views

Memory loss via Screenflow and FCPX

I have a mid 2010 MacBook Pro, OSX 10.9.4, 2.66 Ghz Intel Core Duo, 16 Gb 1067 MHz DDR3, 320 Gb ram split 260 Gb Mac, 60 Gb Bootcamp windows 7, Final Cut Pro X 10.1.1, Screenflow 4.5.2 with an ...
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75 views

Freezing and 3 beep sounds

I have MacBook Pro (2011 model). Everytime I open my personal account (which is Admin one), the laptop freeze after 2 to 3 minutes regardless of the application that I am using. I need to shut it down ...
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41 views

Kernel and Installer HUGE RAM usage

I just realised why my computer getting so slower. I have 8 GB of RAM and usage of kernel is 4,5 GB and the process called Installer taking 1,5 GB, and all that with only finder running! Do I need ...
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25 views

Possibility of allocating memory into different applications - Activity monitor or a 3rd party source

Is there a possibility to allocate different amounts of memory into a certain application, or prioritize that application to receive more memory. I am almost positive you cannot do this task with ...
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101 views

After downloading file installer process runs and uses all memory

When I download a file from the internet a process starts with name "installer" and uses all the available memory until my Mac crashes. It's not related to the browser — I tested with Chrome and ...
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312 views

How is swap on mid-2013 MacBook Air w/ PCIe SSD?

There appears to be confusing and incomplete information about the PCIe SSDs in mid-2013 MacBook Air 11" and 13" (especially the 128GB models), where a different queue depth may result in different ...
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39 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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48 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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941 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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265 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 ...