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

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2
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2answers
57 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 ...
2
votes
1answer
90 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 ...
0
votes
1answer
42 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 ...
1
vote
3answers
82 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 ...
0
votes
2answers
142 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 ...
0
votes
0answers
24 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 ...
3
votes
2answers
88 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. ...
0
votes
0answers
64 views

High windowServer CPU usage on Yosemite

This is (probably) a follow up to WindowServer high CPU on Yosemite: Since upgrading from Mountain-Lion to Yosemite, my MacBookPro5,5 (13", 2.26GHz C2D, GeForce 9400m) is (almost always) showing bad ...
0
votes
1answer
135 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 ...
0
votes
1answer
102 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 ...
2
votes
2answers
82 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 ...
1
vote
3answers
75 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. ...
0
votes
2answers
95 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 ...
0
votes
0answers
22 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 ...
1
vote
1answer
241 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 ...
1
vote
0answers
39 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 ...
0
votes
1answer
10 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 ...
1
vote
0answers
154 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?
0
votes
2answers
145 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 ...
1
vote
1answer
595 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 ...
0
votes
1answer
38 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 ...
0
votes
1answer
73 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 ...
1
vote
2answers
2k 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 ...
1
vote
0answers
27 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 ...
1
vote
1answer
169 views

Is there a problem with GeForce 750M performance on gaming?

I play games on my Mid-2014 retina MBP, which has both Iris Pro and GeForce 750M 2GB. One of the games that I play (League of Legends, which has a 'beta' OS X client, but I highly doubt that this is ...
0
votes
1answer
91 views

Use *Two* Thunderbolt/Firewire adapters on MacBook for 400 and 800 devices?

I'm completing an audio recording setup. Equipment: Macbook 13" Retina late 2012 with Two Thunderbolt ports One Focusrite Saffire audio interface (Firewire 400) One OWC Mercury external SSD drive ...
1
vote
0answers
35 views

Difference in performance between iOS devices

I'm developing a game for ios and notice surprising results performance-wise between my devices. for example, my iphone 5 will perform better than my ipad mini retina. I really have no point of ...
1
vote
2answers
166 views

Kernel_task boosts CPU to 300%-500% (Yosemitte MBP 2011 without a battery)

Long story short, my oldie MBP 2011' battery started bloating, I've contacted a repair service center and they advised me to remove the battery and use it on AC power, while they get a new battery for ...
0
votes
1answer
42 views

Why Does A New Mac Pro Only Support a Single Internal Drive?

Every graphic-heavy application I have used has recommended storing files it uses on a separate disk from the boot disk (preferably an SSD), however with the new MP this isn't an option. The only way ...
-1
votes
3answers
541 views

Why my MacBook Pro is so slow?

I have a MacBook Pro Mid 2012 (MacBook Pro 9,2). Few years ago I was using previous versions of Mac OS X, and it was a great experience. I've found it delicious OS for personal use. Today I use ...
1
vote
1answer
50 views

How to manually control processes launched on start?

Every time my Mac starts, about ~210 processes are launched, requiring about ~1000 OS Threads. With every Apple update this number increases. My laptop freezes for 1-3 min a couple of times per week ...
0
votes
0answers
132 views

Chrome/Chromium scrolling is choppy and eats CPU

This problem has been around since I got my Macbook Pro Retina 2013, 13", 2.4Ghz, 16GB RAM, 256 GB SSD. Currently it's running the latest version of OS X Yosemite. Chrome's scrolling performance can ...
1
vote
0answers
38 views

How can I speed up Enhanced Dictation's response/ processing speed?

It takes around ten seconds to process a voice command, whereas speakable items was instantaneous. Thank you!
0
votes
1answer
44 views

Are there any autocompletion input tools for English? Except default TextEdit app

I'm a Mac user who is a Japanese. I usually type Japanese using Google IME which enables me to type it with predictive texts so that we can type it faster. Google IME http://www.google.co.jp/ime/ ...
0
votes
2answers
59 views

How to speed up old MacBook Pro15 inch late 2007 with 4GB RAM (2.4 GHz)

I am running 10.9.5 (Mavericks) and have about 12GB available on my hard drive with 2.2/2.4 GHz. I have noted that performance has been getting slow (esp. on startup) and was wondering if there are ...
1
vote
0answers
32 views

Disk activity, how to improve it?

Activity Monitor tells me that my Disk Activity is too high even when I'm not running 'heavy' programs. I have an iMac with Mac OS 10.6.8, processor 3.06 Ghz Intel Core 2 Duo, Memory 4GB. Is there ...
0
votes
3answers
85 views

Macbook Pro 13" Mid 2014 disk defect?

I just bought a MBP 13" mid 2014 with a 128 GB SSD. When doing a disk speed test with the Black Magic Design-app, I only get about 210 MB/s write and about 510-550 MB/s read. All the benchmark videos ...
0
votes
2answers
375 views

How to keep an SSD in shape on Yosemite?

As of OS X 10.10, Apple uses kext signing. Ever since it has become difficult and dangerous to manually activate TRIM for third-party SSDs on OS X. So I am wondering what are my options to sustain ...
1
vote
0answers
216 views

FreeNAS, OS X Yosemite and automount

I've got FreeNAS 9.3 server (HP Microserver N54L) and connecting to it via NFS from my multiple OS X systems (running OS X Yosemite 10.10.1). I've always had low performance over the network (1Gig ...
0
votes
1answer
98 views

Slow mac when Terminal have been open for some time

When I have Terminal.app open for some time (mostly after 2-3 hours), everything starts getting slow. When I type there is a delay for each character, and all applications lag when I scroll. If I ...
0
votes
1answer
162 views

Deleting content of /private/tmp moved on different HDD

I have a Macbook pro with 2 internal HD (stock HD for data and data doubler + SSD in place of the optical drive, hosting the OS). I'm now trying to optimize this setup to take into account the ...
1
vote
2answers
188 views

My Mac recently using RAM like hell?

I have 8 GB of ram and I have only 1.25GB free memory left, not enough to run 2 tabs of gmail. for chrome keep asking me to kill the process of my Gmail which 2-3 days ago I'm always have like 2-3GB ...
0
votes
3answers
467 views

Performance Tweaks/Tools for MacOS (Macbook Pro)

I am using a Mid2010 Macbook Pro (2.5 GHz i5, 8GB RAM, regular HD (no SSD) and still on MacOS 10.9). I am fully aware of the fact that, as the computer gets older, it may get a little slower due to ...
1
vote
0answers
266 views

Extreme slowness after upgrade to Yosemite; is my specific problem happening to others or just for me?

Like many, my Mac (iMac) has become extremely slow when performing certain operations and it's making it nearly impossible to get work done. I've been paying close attention trying to find some ...
1
vote
0answers
95 views

Multicoloured circle of death since Yosemite

I have had my Macbook Pro MacBook Pro (13-inch, Early 2011) 2.3 GHz Intel Core i5 Memory 4 GB 1333 MHz DDR3 for about 3 years now and it has gradually got a bit slower in responding. I have a very ...
2
votes
0answers
4k views

How much difference between i5 and i7 13" Macbook Pro 2014 especially for XCode & Visual Studio compilation? [closed]

I have been trying to decide if there will be a substantial difference between the i5 and i7 processor for compiling and running VMs. I expect to run Windows with Visual Studio in a VM as well as a ...
0
votes
1answer
46 views

Lightweight Mavericks installation

What should I do to aggressively lower the memory usage of my Mavericks installation ? The only things I need to run are XCode and Firefox, everything else can go out the window; I'm not opening any ...
0
votes
1answer
86 views

Macbook Air 13 inch (256 GB/ 8 GB/ i5) along with Windows (Using BootCamp)

I am completely new to the Mac and I am planning to buy MacAir (256 GB/ 8 GB/ i5) model and want to use Windows 7 along with it using BootCamp. I have no problem with MacOSX but need to use Windows ...
1
vote
2answers
83 views

Booting from an external SSD

I have a late 2009 i7 iMac that spends most of its time reading and swapping files from the 2TB hard drive, even though it’s only 40% full. I want to buy an affordable (240GB/£160) Firewire external ...
8
votes
7answers
4k views

Yosemite: Accessibility zoom + multiple monitors = poor performance

Ever since upgrading to Yosemite, the accessibility zoom feature is unusable when connected to an external monitor. Steps to reproduce: Enable Zoom in System Preferences - Accessibility. Connect an ...