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

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2
votes
1answer
433 views

How can I disable CPU throttling on Late 2006 MacBook with no battery?

The problem I am experiencing is that if the battery is not present, the CPU is automatically throttled. I have done some searching and have found that this is apparently by design, "in case the ...
1
vote
1answer
175 views

Move Large, Frequent files closer to center of HDD

Is there a native/third-party utility (or native trick) to move large, frequently-used files closer to the center of the disk? I was under the impression that the OS tried to automatically optimize ...
2
votes
1answer
320 views

Will FileVault reduce the power of my hybrid SSD+HDD?

I have a MacBook with a Momentus XT hybrid SSD+HDD drive. It have a 500GB HDD plus 4GB SSD which, as I could check, it uses as a cache for read operations. It uses some kind of black magic to ...
2
votes
1answer
753 views

Why do I get serious execution lag on clicks, application switching and general usage

I have an MBP 8.1, early 2011, 13 inch, Mountain Lion. Whenever I leave it on for more than a couple hours, I get serious execution lag on every command. For example: I click something (a link, ...
0
votes
0answers
77 views

Apple iPad - intermittently crashing

I've inherited a 1st generation iPad. It seems to work fine, except for the reason I inherited it, which is that every so often, whichever app is running will simply close for no discernible reason. ...
2
votes
1answer
400 views

How does Apple achieve such an ultra fast boot up?

I'm a recent Mac user (MBP) and the booting time really surprises me. Within few seconds, from complete power down, the OS prompts you to log in, then the rest just flies! And even faster recovery ...
4
votes
1answer
4k views

Computer slows when battery is low

My Macbook Pro running Mountain Lion slows down dramatically when the battery is below 4-5%. All the applications running are very slow to respond, and several have the "Application not responding" ...
4
votes
2answers
2k views

How to disable any and all eye-candy features on Mac OS X 10.6.8?

I'm going to install Linux Mint virtual machine and work primarily through there. I want to shut off any and all eye candy on Mac to squeeze out every last bit of performance I can. Akin to "Set for ...
0
votes
2answers
1k views

Which Time Machine backup destination over Wi-Fi to choose: old computer running Ubuntu or Time Capsule?

Here is my situation. I live in a shared house where there is already a wireless router that other people use. I have a Macbook Air that has 128GB of hard drive. I want to use Time Machine for ...
20
votes
12answers
48k views

Will Mountain Lion make an older computer run faster or slower?

Performance/responsiveness is a common concern with new software, especially on older machines. In general, upgrading from Snow Leopard (10.6) to Lion (10.7) wasn't too bad, but now Mountain Lion ...
-1
votes
1answer
2k views

Can imagent in OS X Mountain Lion be made to consume fewer resources?

imagent is constantly consuming CPU cycles and a couple of GBs of "real memory" on my wife's MacBook Air since upgrading to OS X Mountain Lion. I believe this is part of the Messages app. Is there ...
-3
votes
3answers
2k views

Can a reduced number of processes lead to improved performance with OS X 10.8?

I updated to OS X 10.8 and my process count went from about 75 under Mac OS X 10.7.4(?) to 96. What can I do to fix this? I use my Mac (MacBook Pro, Mid 2010, 2.8 Ghz Core i7, 8GB RAM, 256 GB SSD) ...
1
vote
2answers
594 views

Is there anything like NVELO Dataplex (hybrid SSD/HDD software) for OS X?

I'm interested in upgrading my old MacBook to using an SSD and moving the data drive to where the DVD drive is using an optibay. Often SSDs come with a licence for NVELO Dataplex software (which is ...
0
votes
1answer
662 views

Will SSD improve iPhoto and Aperture responsiveness?

I have a late 2008 Macbook with Core 2 Duo and plenty of RAM and HD space. (8GB of RAM, max for my machine) Every time I do some work in iPhoto and Aperture, my CPU usage goes up to around 60-80% ...
8
votes
3answers
7k views

How can I speed up SD card writing speed (using /dev/disk*) on a MacBook Pro?

I've been installing some linux distributions onto an SD card from my MacBook, although they take over an hour to transfer a few hundred MB (using dd and /dev/disk1). If you look at the above ...
5
votes
2answers
15k views

How can I monitor the FPS in OSX?

I'm looking for a solution to monitor the refresh rate of the OSX. In several reviews like this one about the retina Macbook Pro by Anandtech they report actual fps to discuss the performance of ...
2
votes
3answers
3k views

Can I improve network speed with VirtualBox between host and guest?

I use a VirtualBox machine with Arch Linux as development web server. I want to improve rsync transfer speed via smb://. What kind of configuration is best to improve file transfer/synchronization? ...
1
vote
1answer
523 views

Why does running Luxology Modo cause a marked increase in performance for other 3D graphics apps?

Original post is at the bottom, newest update at the top. ;) I didn't think to add this before, but you can download a 15-day trial of Modo for free if anyone want to try this for themselves. If ...
0
votes
1answer
180 views

iTunes can only perform one task at a time

Ever since updating to the latest version of iTunes on my dual core mac mini, iTunes can only perform one task at a time beach balling the entire time. For example if it is downloading a podcast, and ...
2
votes
1answer
108 views

Emulating lower speed CPUs on Mac mini

I would like to ask whether it is possible to develop OS X application (especially for Lion) on a Mac mini, being able to test how the performance would be on a lower speed CPU. For example: ...
7
votes
3answers
20k views

Functionally speaking, where will I see a difference between dual- and quad-core i7s?

I am ready to buy a new MacBook Pro. I am drawn to the portability of the 13" and the better specs of the 15". If you take money out of the picture I would really like to know where I would see the ...
0
votes
1answer
158 views

How to set up Loki Render on Mac OS X Lion

I am trying to do network rendering in Blender3D using Loki Render across my 3 Xserves. I have no experience in setting up network rendering and the instructions that are given on the Loki Render home ...
2
votes
1answer
543 views

Mac OS X disk performance monitoring

Which tools to use for detailed performance analysis of disk access? per disk per process queues latency data volume/throughput errors characterisation (read Vs write, burst, etc.) Tried iostat, ...
0
votes
1answer
486 views

Macbook Pro just started overheating and losing frame rate

It's strange because I've had Diablo III for a couple weeks now and I've been able to play it just fine without any performance problems. Starting today though, I've experienced some serious ...
2
votes
2answers
130 views

Safari “Find” is slow

Safari is fast at everything, except "Find". When I hit command-F, I get the beachball for 5 to 25 seconds (and then the Find bar appears as normal and everything's good again). I have plenty of ...
1
vote
0answers
209 views

Guide on removing unused Agents and Daemons to speed up MacOS

Can you point me to a good guide on spotting and getting rid of running Agents, Daemons and Processes that aren't useful to me anyway and are taking up memory and CPU cycles?
1
vote
6answers
3k views

Replacing hard disk with SSD or increasing RAM in MacBook Pro

I am using MacBook Pro for the last 1.5 years. Here is my configuration. 13" MacBook Pro, min-2010 2.4 GHz Core 2 Duo 4 GB RAM OS X Lion 10.7.4 Would you recommend upgrading to SSD for fast ...
0
votes
4answers
485 views

Does the performance increases when the memory increases in Apple products?

I am planning to buy an iPad 3. My choices are, iPad 3 - 32GB with wifi iPad 3 - 16GB with wifi + 4G I'm so confused to select my best choice. Actually the problem is, some of my friends telling ...
8
votes
6answers
9k views

Alternative activity monitors for OS X?

I’m a bit intrigued by the new detailed activity monitors and progress indicators in Windows 8 (copying files, the task monitor, network activity, etc.) It got me thinking: surely there must be some ...
1
vote
1answer
331 views

What is the performance bottleneck when launching large applications on OS X?

I have an Early 2011 13" Macbook Pro (i5 2.3Ghz). I've upgraded it to have 8GB 1333 ram and an OCZ Vertex II (120GB) SSD. There are a couple of heavy lifting apps on my mac that take roughly around ...
1
vote
1answer
1k views

How to speed up an iPad 2?

My iPad 2 (32gb) is about one year old and he is getting very slow. I've tried restarting the iPad and quitting all apps but with no real success. There is about 5 GB of free storage space. Any ...
3
votes
0answers
838 views

helpd uses 100% CPU after installing any application with documentation

I see that after installing a software that ships with documentation in OS X’s help document format, the helpd process uses 100% CPU for up to 5 minutes or so. I also see this when you first install ...
3
votes
2answers
4k views

Process “ubd” high CPU usage

I noticed my MBP got really slow, which must be strange with SSD and 8GB of RAM. So I opened the Activity Monitor to discover a process called ubd keeps its CPU usage very high, about 120% most of ...
2
votes
1answer
458 views

MacBook Pro battery and speed issues

My sister's MacBook Pro often shuts down at ~20% battery. It won't turn on again until it has been plugged in for about 10 minutes.
2
votes
1answer
893 views

How to check if my iPhone's connection is being throttled?

AT&T now throttles the connection speeds for those on the unlimited plan. How can I know if my iPhone's connection is being throttled or if I'm just getting poor speed due to other reasons?
2
votes
4answers
985 views

Any better way to purge the inactive memory?

Running purge command in the terminal to free the inactive memory isn't really what I think about Apple. Lion isn't doing a great at all when it comes to free the inactive memory. Free memory is ...
1
vote
2answers
4k views

Mac book pro is very slow

I have a mac book pro late 2011. It has a very powerful hardware. But it is very slow. For example when I'm making expose geisture, there appears 'loading circle' and mac lags for 4~5 seconds. Same ...
0
votes
2answers
306 views

Mac Pro 2008 OS X 10.6.8 random restarts, grinding HDD

So I've had my Mac Pro since 2008. I currently have OS 10.6.8 on it. In the last week, it has restarted itself twice while I was in the other room. Since I wasn't there, I don't know if there were any ...
6
votes
1answer
9k views

Animated GIF images are slow on iOS

Animated GIF images seem incredibly slow since iOS 4.3ish. Prior to that, animated GIFs worked just fine and had the same speed as on a computer. I don't mean loading the GIF, but the speed of the ...
7
votes
4answers
2k views

How can I simulate having a slow CPU?

I am almost done coding my webapp-game. It runs on all modern browsers. However, I want to establish some minimum requirements for it. Thus, I need a slow Mac. However, I don't have access to a slow ...
28
votes
5answers
3k views

Do computers slow down as they age?

I have an eMac I bought in 2004. I just used the system restore CD to re-install Panther, iLife '04, Internet Explorer for Mac(!), etc. I don't have any timed specs from "back then", so I can't answer ...
4
votes
2answers
11k views

Will a reset make my old iPad faster?

I have an old iPad (the first generation), and over time it has become unbearably slow. Now I understand that I cannot expect apps designed for faster iPads to work perfectly on this old device. ...
10
votes
4answers
3k views

What has changed Finder list view in Lion to make “Calculate all sizes” exponentially faster?

Since way before Mac OS X came on the scene, we have been able to ask the Finder to Calculate all sizes in order to determine the sum total of readable file size space contained in each folder for the ...
17
votes
3answers
1k views

How can I figure out which tab in Safari is using CPU?

I usually have several tabs open in Safari in the background, and sometimes I see it taking up an unusual amount of CPU (PluginProcess or WebProcess). How can I figure out which tab (or tabs) is ...
4
votes
1answer
2k views

Any performance gains when disabling secure virtual memory?

To disable secure virtual memory in 10.7, one does the following: sudo defaults write /Library/Preferences/com.apple.virtualMemory DisableEncryptedSwap -boolean yes However, are there any benefits ...
9
votes
4answers
13k views

Using FaceTime without the video

I have a first generation MacBook Air that heats up a lot when playing videos, and almost grinds to a halt after a few minutes of playback. Is there a way I could turn off the video during FaceTime ...
2
votes
3answers
2k views

What impact can a dual monitor setup have in overall performance?

I have a MacBook Pro late 2008 (2.4GHz Core 2 Duo with 4GB memory) and am considering getting a second 24" monitor. I understand having a dual monitor setup may decrease performance, but how much ...
0
votes
2answers
388 views

Does showing a flashing time separator slow down a Mac?

Is there any reason to be concerned that showing flashing time separators would slow down my Mac, since the computer now has to keep flashing the separator? What about showing seconds? Why or why not? ...
11
votes
3answers
7k views

How would enabling FileVault alter my system and TM performance?

What are the pros and cons, performance-wise, of enabling and using FileVault? Is there any at all, or does it slow a computer down significantly or on the contrary speed it up? Also, what effect will ...
5
votes
3answers
926 views

Does moving my home folder to an non-boot drive decrease performance?

I'm going to get an SSD, making that my boot drive and moving the existing hard drive to the optical drive bay. I will keep my data on the original hard drive. MacPerformanceGuide.com says "If the ...