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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14
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670 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 ...
4
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0answers
4k 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 ...
4
votes
0answers
102 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 ...
3
votes
0answers
688 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 ...
2
votes
0answers
64 views

What exactly does “out of application memory” mean?

When OS X (10.11 in my case) pops up a dialog saying the system has run out of application memory, what does this really mean? I've looked at this question, but my question is a bit more specific and ...
2
votes
0answers
1k 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
102 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
votes
0answers
447 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
160 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
votes
0answers
53 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
votes
0answers
100 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. I'...
2
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0answers
426 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
votes
0answers
516 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
votes
0answers
105 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 ...
1
vote
0answers
149 views

XCode problems - freeze and high memory usage

I had a problem with XCode - during debug session on device randomly see freeze and in Activity Monitor I see that XCode uses a lots of memory (over the physical RAM installed in MBP). I'm sending ...
1
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0answers
37 views

RAM ejector clips stuck after replacing RAM on late 2006 20" iMac Core 2 Duo

We have a 9-year-old iMac, and it's still running fine except that it started to slow down. So we decided to upgrade the RAM to 3 GB. Following the instructions on Apple's support site for replacing ...
1
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0answers
398 views

After Installing El Capitan I Will be Logged Out Frequently

MacPro late 2009 with 3 monitors. OSX 10.11.1 Will run great on 1 monitor without screen/system freeze or logouts. At times it is an instant logout, other times, the primary monitor freezes, or is ...
1
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0answers
15 views

Swap Used when there is unused Physical Memory

I'm running on OSX Yosemite and notice that although there is 7 GB of memory unused, there is still 130 MB of memory used for swap. Are any apps actually using swap space, which I assume resides on ...
1
vote
0answers
102 views

MacBook Pro (Late 2008) 8GB RAM not being used

I have the following: - MacBook Pro (Late 2008) - MacBookPro5,1 - Boot ROM: MBP51.007E.B06. - OS X Yosemite 10.10.5 I upgraded RAM from 2GB to 8GB 1067MHz DDR3. The system recognizes the 8GB ...
1
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0answers
48 views

How to get a notification when I exceed a set amount of RAM?

I've got 10GB of RAM in my 13" early 2011 MBP running the latest OS X 10.11.1 public beta, and I've been trying to decide if I can tolerate the 8GB model when I get a new computer. The answer to that ...
1
vote
0answers
1k 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 ...
1
vote
0answers
648 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 ...
1
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0answers
1k 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 ...
1
vote
0answers
234 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 ...
1
vote
0answers
3k 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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0answers
358 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 ...
1
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0answers
83 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 ...
1
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0answers
346 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 ...
1
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0answers
178 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 ...
1
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0answers
596 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?
1
vote
0answers
299 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 ...
1
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0answers
565 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 ...
1
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0answers
303 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 ...
1
vote
0answers
548 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.
1
vote
0answers
387 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 ...
1
vote
0answers
950 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 ...
1
vote
0answers
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. ...
1
vote
0answers
136 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 PC3-...
1
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0answers
137 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 ...
1
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0answers
90 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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0answers
314 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?
1
vote
0answers
333 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 ...
0
votes
0answers
10 views

My IPhone 6 deleted all my photos , after he shown me full memory

Please help me get back my photos. I had 3 months full memory , sometimes i deleted a few pictures only. Yesterday i took oné photo, than the iPhone was frozen; after that i went to photo library, and ...
0
votes
0answers
38 views

Poor performance on high-end iMac 5K Retina (October 2015 model)

I've got an iMac that is performing quite poorly. The specs: OS X El Capitan 4.0 GHz quad-core (i7) 16 GB RAM I've tried everything possible to figure out what's going on, to no avail. Typically ...
0
votes
0answers
13 views

Mac Pro acts as if no memory installed when upgraded (but only when new & old combined)

I bought a memory upgrade for the mac pro from crucial, http://uk.crucial.com/gbr/en/mac-pro-%28late-2013%29/CT5019227 I installed it, by itself, it works fine, system boots and everything is perfect....
0
votes
0answers
76 views

Kernel Task is taking up 1.12 GB in activity monitor

I have an issue where my kernel task is taking over a GB of memory on my activity monitor. My fan seems to be going pretty crazy and is loud. Any ideas?
0
votes
0answers
53 views

MacBook keeps Panic (RAM problem?)

I’m having a major problem with my MacBook Pro 15" (Mid 2012 - non-retina) In 2012 I bought my MacBook in connection with my education. About 6 month after I've bought it, I got my first Kernel Panic ...
0
votes
0answers
22 views

IPad memory of ICloud

Often, I see Your iCloud memory is full. However, when I go to iCloud memory in Settings, I find that about 50% of storage is empty or available. How can I remove this message?
0
votes
0answers
31 views

Is it feasible to mix different brands of RAM?

Based on my online research, I believe it is safe to assume that one can use two sticks of RAM that have different RAM sizes (2 gigabytes, 4 gigabytes, etc.). However, my Macbook Pro has been ...
0
votes
0answers
13 views

Why could MBP be making slow churn after RAM update?

I recently upgraded my MBP Early 2011, 2.7 GHz Intel Core i7, RAM from 4GB to 8GB. I'm running Yosemite, so I figured this was a good decision. I've noticed that my MBP now is louder than it used to ...