Questions dealing with performance of Apple hardware or software, especially about troubleshooting or improving poor performance.

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12 views

Mac Mini (Late 2009) - Recommended OSX Version for it?

I have a Mac mini (Late 2009) (hw.model: Macmini3,1, 2 GB RAM) that I've got hooked on my TV primary as a "media consumption" device... but a while ago I updated it to: Mac-mini:~ javier$ sw_vers ...
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1answer
10 views

Low Pings on my game? [on hold]

I conducted a ping test between myself and the games server (Ultima Online Razor) and the average ping was in the 50-60's which is pretty good. No dropped packets after doing a loop test. However, ...
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15 views

What programs actually use the memory on a Graphics card?

I noticed that the Graphics Card memory is hardly used at all, even during Cinebench 3D testing despite the FPS being high. What programs actually use the graphics card memory? Trying to determine if ...
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0answers
14 views

Is there a program to monitor GPU processor usage in Yosemite?

iStat only reports memory usage, but I'm looking to see how much of the processor is being used from the AMD M290x graphics card in my iMac. Is this possible?
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2answers
39 views

Will upgranding my MBP to an internal SSD, improve also speed of reading external non SSD HDrives?

So, I'm thinking of upgrading my MBP (13' late 2011) with an internal SSD drive. I'm wondering if the increase in speed of read and write on the SSD internal drive, will increase peroformance and ...
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1answer
39 views

How to debug Safari CPU utilization and spinning beach ball?

I have been plagued by performance problems in my late 2010 MacBook Air for several months now. Most of it seems centred around Safari. I regularly get very high fan speeds (loud to the point of very ...
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1answer
41 views

Apple Thunderbolt or HDMI for external monitor

Is there anybody who can answer me this question? I have a Macbook Pro Retina 15" quad i7 etc and I use some programs/applications wich need a lot of cpu and also the macbook heats up like hell. I ...
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1answer
45 views

How much faster is an external SSD than external HDD if internal drive is SSD?

I'm running intensive animation software and am having speed issues. At the moment I'm just working from an internal SSD. How much faster should it run if I put the project files on an external HDD? ...
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2answers
43 views

Can a MacBook Pro13-inc, 2.9GHz Dual-core Intel Core i7 use CL9 memory reliably?

Looking for a memory upgrade for a macbook pro 13-inc, 2.9GHz Dual-core Intel Core i7, The Apple specifications call for CL11 RAM. The question is if it will work fine with a CL9 memory so I can take ...
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2answers
46 views

Why is my Air Port suddenly slow?

For a bit over a day, by AirPort Extreme has been much slower than usual. Over the past year I've had lastTxRate pretty consistently around 250, which is close to the maxRate I get (289). Lately ...
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1answer
52 views

What does “Increase Contrast” option change?

Many forums say, that enabling Increase Contrast option in Accessibility Preferences helps Yosemite to make the animations, like entering Mission Control to be much smoother. This is also consistent ...
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33 views

High CPU usage during disk operations

Early 2009 17" MacBookPro (MacBookPro5,2) 2.66 GHz Intel Core 2 Duo OS X Yosemite 10.10.3 240 GB OWC Mercury SSD, installed in 2010 I've had issues with high CPU usage for a while now. The original ...
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2answers
45 views

Is disk image encryption slower than partition encryption?

I am considering two options to encrypt some data: add a new encrypted partition add an encrypted disk image Which option is faster in terms of disk read/write speed? I suspect that an encrypted ...
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0answers
19 views

Low speed rate when transferring data to usb device

When I try to copy data to my USB device I see a very low speed rate. For example, transferring a movie of 750Mb takes 10 minutes. I have tried with some other external USB hard drives but I am also ...
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123 views

Higher kernel_task CPU usage when playing audio through Thunderbolt Display

I noticed today a higher kernel_task CPU usage when playing audio through Thunderbolt Display from my Macbook Pro (early 2011) on OS X Yosemite. Although the CPU usage is not very high (15 - 20%), it ...
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1answer
106 views

What do I need to do to get my Apple Watch apps to launch quickly?

Apple describes its Watch as being "ideal for quick looks and fast interactions", but most (in fact almost all) of third party Apple Watch app Dark Sky take 20-40 seconds to launch — during which time ...
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1answer
42 views

Fan for MacBook Air?

Macbook Air gets hot near its processor and gets sluggish for a while, whenever I make "heavy" tasks at the same time. I wonder if a fan under its base would make any difference since mac has no ...
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3answers
86 views

Fully upgraded MBA or MBP (13")? [closed]

I'm looking to buy my first macbook and I am unsure which one to buy. I will use my laptop while travelling mostly next year on my working holiday visa for general purposes (web browsing, watching ...
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3answers
149 views

quicklookd and revisiond eating my CPU

I'm observing regular and abnormal CPU usage on my macbook pro. quicklookd in par with revisiond are eating together over of 50%. It drains my battery significantly and makes the whole machine hot. ...
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0answers
106 views

troubleshooting Finder (and disk access?) speeds — Dropbox extension problems?

I am on Yosemite 10.10.3, though in the public beta program (which now is in sync with releases). I am also in the Dropbox beta, now on 3.5.58, for what it's worth. File access is curiously slow now. ...
2
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1answer
105 views

MacBook Pro a lot slower after reset

I recently had some issues with my computer and since I had a backup of all of my files I decided to just wipe the hard drive clean. After, what I thought, was a full reset I am beginning to suspect ...
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1answer
133 views

Why don't I see a significant boost in performance moving to SSD on MacBook7,1?

I've got a 2010 MacBook (MacBook7,1) with 8GB RAM running Mavericks 10.9. I recently replaced the stock HDD with a Samsung 850 EVO 250GB SSD and restored from a Time Machine backup. Though Disk Speed ...
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110 views

Skype is using 60% to 80% CPU

I have a Mid-2014 15" MacBook Pro with an Nvidia graphics card. Skype uses around 60% - 80% CPU on my computer when I make a call (doesn't matter if it is video or voice call). I tried doing SMC and ...
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31 views

Slowness around Messages in iOS

I have a couple of different symptoms of extreme slowness in Messages which I think are related: Opening the Messages app itself sometimes takes 20+ seconds Opening a conversation within Messages ...
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2answers
80 views

kernal_task super high yosemite, cpu frequency super low

I'm trying to solve the mystery of a crazy high cpu usage on kernel_task. MacBook Pro (Retina, Mid 2012), 2.7 GHz Intel Core i7, Yosemite 10.10.2 I saw some advice to download the Intel Power ...
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1answer
100 views

Macbook Pro 2012 md101 gpu throttling

When playing games on Macbook Pro 13 inch 2012 md101 under Windows 8.1 the temperature rises to 100 degrees pretty fast and gpu starts throttling giving a huge slowdown in games. Is this a normal ...
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2answers
211 views

Is it better to have more cores or higher processor clock speed to decrease build time for iOS projects

I am trying to pick the most appropriate hardware to speed up build time for iOS projects - I don't know if I should favor faster processors (3.5 GHz) with fewer cores (6) or slower processors (2.7 ...
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1answer
379 views

Ridiculously slow MacBook Pro

I have a MacBook Pro (I think mid 2012). About three months ago it started running really slow, so I renstalled the OS with a recovery partition. For a few weeks it ran very well with an overall very ...
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1answer
67 views

MacBook Pro is slow, will adding RAM help?

I have an early 2009 13" MacBook Pro. I have used it a lot and at the moment and for a while now it is quite slow. I need to use various applications like Mathematica (for which it is quite slow if I ...
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3answers
232 views

Is there a way to stop the optimization process behind “Optimizing Your Mac”?

Using OS X 10.9.5 I got this message after logging out and back in with different UID. Screen is frozen except I can move the mouse courser around just cannot select anything. Display sleep mode does ...
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2answers
645 views

Third party SSD optimization Yosemite

Unaware of the current issues with Third-Party SSD support on Yosemite I went ahead and bought a 128 GB Crucial MX100 SSD. I hear a lot of problems about enabling Trim on Yosemite etc. I recently ...
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56 views

Pros and cons to JBOD setup on MacBook Pro with two internal SSDs

I've got an original Apple-installed 120GB 3G (3Gb/s) SSD which I'll be moving into the optical bay using an OWC "Data Doubler" and swapping a new 240GB OWC Mercury Electra 6G (6Gb/s) SSD into the ...
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2answers
240 views

How to view CPU clock rate in GHz or MHz?

I am looking to get the new 12″ MacBook and as a result I would like to know the clock speed (in GHz) my current MacBook Air (late 2010) is running at so I know the processor on the MacBook will cope. ...
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0answers
150 views

High windowServer CPU usage on Yosemite

Since upgrading from Mountain-Lion to Yosemite, my MacBookPro5,5 (13", 2.26GHz C2D, GeForce 9400m) is (almost always) showing bad performance while working with native windows like Finder, System ...
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1answer
198 views

Will the new MacBook be turbo charged?

The new MacBook 12" has been launched and on the apple store the processor says 1.1GHz dual-core Intel Core M processor (Turbo Boost up to 2.4GHz) Does this mean that the Core-M processor will ...
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1answer
291 views

Why is cp command 4 times slower than copying in Finder in OS X 10.6?

I accidentally stumbled upon this issue: Copying a 119 MB zip file took 4 times longer in Terminal (cp) than in Finder! I copied a file of 119 MB size in Terminal with time cp file.zip file2.zip ...
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2answers
301 views

Would adding RAM to 2009 imac improve performance

Since I upgraded to Mavericks from Snow Leopard, my 24 inch 2009 2.93 Ghz imac has been quite slow. It's slow to open up programs and slow in general. Currently the imac only has the 4Gb of RAM that ...
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3answers
115 views

Would replacing Macbook's HDD to a new one speed it up?

Macbook Pro 2009 with 500 GB HDD and 4G RAM running Yosemite. Been slow last couple of years or so. Got 30 GB left out of 500 GB hard drive. Opening an app can take minutes and dozens of icon bounces. ...
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2answers
220 views

Poor sluggish performance after upgrading to Yosemite

I am facing very sluggish performance in my MacBook Pro after I upgraded it to Yosemite. Mine is 8GB, i7 mid 2012 system. Usually I find my unused RAM <25MB even if I work in terminal, say around ...
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1answer
49 views

Recurring window manager performance issues in 10.10.x

I've been having graphical performance problems with Yosemite since early developer previews. The main expression of this is trying to switch applications. When going from Terminal to Messages or ...
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1answer
1k views

High memory usage on MacBook PRO retina 16Gb i7 2,5ghz

I'm using a MacBook Pro Retina 15-inch 16Gb Processor 2,5 Ghz Intel Core i7 Graphics Intel Iris Pro 1536 Mb OS: OS X Yoseminte v10.10.2 I'm having a problem with my ram. I think its eating too much ...
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0answers
43 views

SSD Performing Poorly

I have a MBP 17 2010, equipped with a Vertex 2 SSD 120GB as boot disk. It's an old hardware but I don't want to change it, the problem is the SSD is performing poorly : The SSD health report is ...
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1answer
22 views

Does `dtruss -p PID` list system calls made before dtruss was run?

I'm trying to diagnose an intermittently slow command. When I run the command and see it hanging, I press control + t to get the PID, then in another tab, run diagnose [PID] - eg, diagnose 123. I've ...
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0answers
290 views

Using scaled resolution in Macbook Pro Retina can cause overheating?

I'm using a late 2014 13 inch macbook pro retina. I'm using a scaled resolution of 1680*1050. When using this resolution, i don't know why, my laptop gets overheated. How can i fix it?
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477 views

On Macbook Pro, how to tell if my hard drive access speed is a bottleneck to my current computer performance?

I'm considering giving my 2010 Macbook Pro an upgrade. Whether upgrading its 500 GB hard drive to SSD drive is a priority depends on how much it bottlenecks the computer's performance. Is there a ...
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1answer
5k views

What is causing slow Wi-Fi speeds on my Airport Extreme?

I have a recent model (bought 1-2 years ago) Airport Extreme that, until yesterday, has worked flawlessly. Starting yesterday, my wireless speeds have tanked. I first suspected my ISP, but that ...
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1answer
58 views

Is it possible to reserve exact amount of space for the indexing and virtual memory?

Is it possible to reserve exact amount of space for the indexing and virtual memory? I have Macbook Air with 128 GB SDD (with OS X Yosemite). When I run out of memory (free space less than 1 GB) the ...
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1answer
179 views

Very slow to start processes or open applications

I have a Mac Mini (Mid 2011, 8GB RAM) with Yosemite which is getting slower and slower. But the weird thing is that only opening applications or starting new processes (from the terminal) is terribly ...
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3answers
5k views

Why do the Image Capture Extension and softwareupdated processes consume so much memory?

I recently updated my 2008 MB Pro (2 GB RAM) to Yosemite from 10.6 and I've found that it's often unusably slow. After keeping an eye on Activity Monitor over a couple weeks, I notice that the Image ...
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41 views

Optimize filesystem for speed over integrity

On Linux, I use the noatime,nodiratime,nobarrier,data=writeback mount optioins in /etc/fstab to trade filesystem safety/consistency/integrity for speed which makes sense for local development. Is ...