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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4
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256 views

How is the Y value for the Memory Pressure graph in Activity Monitor calculated?

How is vm.memory_pressure's value bounded / calculated on OS X 10.10.2 - Yosemite? I've researched several answers to this question and am trying a few things on the command line to get exact values ...
2
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0answers
15 views

Can a dedicated GPU use/share system RAM in addition to the VRAM included with it?

The Macbook Pro laptop, running OS X, has a AMD GPU which includes graphics memory of 256 MB. Is it possible for the machine to run an application that requires 512 MB video memory by sharing some of ...
2
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986 views

softwareupdated using 350MB+ of memory, is this a problem? How can I get it to use less?

I'm running Yosemite with the latest updates. softwareupdated is using approximately 380MB of memory. That seems quite high to me. Is that normal? Is that indicative of a problem? Does ...
2
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0answers
81 views

Use Ram as graphics memory 5k imac

My graphics memory (4gb) is getting eaten up by my 3 or 4 apps that are open. Is there any way to allow the graphics card to use free RAM instead of swap memory? The second the graphics card dips ...
2
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0answers
391 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 ...
2
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0answers
131 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 ...
2
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0answers
40 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
80 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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344 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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465 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 ...
2
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0answers
98 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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60 views

Where is the mount point and format of the iOS memory when it is plugged in a mac?

I would like to do manual changes to my iOS iPhone, and I would like to know if it is possible to plug the iOS into a mac, find the mount point and /dev/disk<number> and then cd to it and do ...
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532 views

iOS 8: Prevent Safari Mobile from reloading tabs by default

When switching between tabs in Safari Mobile -- Even within a few seconds -- Safari will automatically reload the tab. This will happen more frequently between sessions: Switching between Safari ...
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0answers
423 views

Facetime audio takes up SSD space

I was just using FaceTime audio and my phone told me I was running out of space. I was curious as to how this was possible as I knew I have about 2GB free yesterday. I kept going back in and ...
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0answers
331 views

Disable Quicklook for certain filetypes

We have a few Mac's that choke on folders that have a lot of .TIFF files in them. The quicklookd process, and Quicklook Helper processes skyrocket in RAM and CPU usage. I'd like to keep quicklook ...
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165 views

Apple Mail Using Excessive Memory

Recently, whenever I attempt to compose a message in Apple Mail, my entire system slows to a screeching halt and I have to shut mail down before I can have access to any other application. What's ...
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144 views

Why does Instruments say that WebKit in iOS (Safari) is allocating 200 MB of ram when I request a 15 MB file?

I am helping develop a cross platform web app, and we want to store about 20MB of data on the client. We are using the Application Cache to store our HTML, CSS, and JavaScript, and we are using the ...
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0answers
41 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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2k 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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286 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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0answers
66 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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218 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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160 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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465 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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212 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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540 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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173 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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423 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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977 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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334 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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748 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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1k 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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127 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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126 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
88 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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277 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
306 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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78 views

Possible memory corruption error

I have a Mac Yosemite version 10.10.4. Recently I've been experiencing problems with Firefox and Chrome, which both crash often. The real problem is that in the past few weeks I experienced some ...
0
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0answers
25 views

memtest86(+) not working on MacBook Pro 8,3 17" 2011?

When i run memtest86 or memtest86+ on my MacBook Pro 8,3 2011 17" 2,5GHz the machine reboots after a few seconds. I tried 3 different pairs of ram modules. problem persists. I never had any issues ...
0
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0answers
33 views

Mac RAM Upgrade beeps

The Mac I am using is an old , white plastic, Core 2 Duo version. The 'about this mac' section in OS/X says it's an 'Macbook 7,1' whatever that means and the Firmware (Namely EFI) is up to date. I ...
0
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0answers
97 views

What's a normal value for kernel_task RAM usage?

Just bought a new MacBook Pro 12.1, early 2015 (Yosemite 10.10.4). I'm observing memory usage from kernel_task varying between 0.8-2.0 GB. Is it normal? Couldn't find a question referring to normal ...
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0answers
54 views

Chrome kills my 16gb ram new iMac but runs fine on 2gb 5yr old Air?

I like using Chrome as it has a lot of the plugins I need for Web Dev. However, it kills my new iMac - having more than 6 tabs open affects the performance dramatically. Oddly enough this does not ...
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0answers
121 views

kernel_task filling up disk

Something weird just happened. I got a warning that my disk was running out of space. I knew that it had like 15GB free before and wondered where all the free space went. I checked Activity Monitor ...
0
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0answers
43 views

Xcode uses 600 MB–800 MB memory when idle

Xcode 5 is the only IDE I use for everything. It's best for debugging C++ programs. The only problem is that I have a MacBook Pro (Late 2012) and only 4 GB RAM. Xcode hogs all the memory all the time. ...
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65 views

MacBook Air (OSX 10.7.5, 2gb RAM, 1.5gb free storage) constantly running out of RAM with only browser open

I have a 4 year old MacBook Air which has been fantastic until recently. It is really struggling to run any program. Right now I have about 5 Chrome tabs open and it is struggling to keep up with the ...
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0answers
61 views

Upgrading SSD and RAM has horrible side effects

upgrade a MBP 13inch ram and hdd to ssd Upgraded using carbon copy cloner. Constant beach balling Takes 40 seconds of white screen to get to the apple boot screen Network just doesn't work. It ...
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58 views

Puzzled by softwareupdated's storage usage, as reported by Activity Monitor

I want to understand what is being reported by the Activity Monitor for softwareupdated. It reports that softwareupdated has around 430MB of memory (it varies), but if I click on it it reports: ...
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49 views

force quit keyboard shortcut not working

While I can choose "force quit" from the Finder, I cannot: Choose Force Quit from the Apple menu, or press Command-Option-Esc (this is similar to pressing Control-Alt-Delete on a PC). ...
0
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0answers
154 views

Process: kernel_task over 700mb memory

Anyone knows how do I solve high memory consumption of the process "kernel_task" ? I tried to delete .plist files from folder bellow, but the problem still continue My Mac: Macmini6,1 ...
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0answers
121 views

Power Mac G5 doesn't boot/black screen

I have a Power Mac G5 (Model No: A1047 EMC 1969C). My problem is that it doesn't properly boot anymore when powered up. When I'll press the power button, the white LED next to the button will ...