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

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8
votes
6answers
8k 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
298 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 ...
2
votes
0answers
745 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
3k 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
416 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
643 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
958 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
3k 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
285 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
7k 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
10k 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. ...
9
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
11k 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
322 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? ...
8
votes
3answers
6k 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
860 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 ...
4
votes
3answers
3k views

How does the new iPad's A5X graphics processor affect PDF rendering speed?

How much, if any, has the new iPad has gained in PDF rendering speed with the A5X processor (quad-core graphics)?
2
votes
2answers
94 views

Is there any way to hamstring my system?

I'm looking to temporarily reduce the amount of cores and RAM available to my system, as well as the processing power. I've written a server that uses epoll (Linux) and I want to get a rough ...
5
votes
4answers
6k views

How can I boost the performance of my MacBook?

I know that upgrading my MacBook with extra RAM can help boost the general system performance. Recently, I upgraded from OS X 10.5 to OS X 10.6.8. I thought that my RAM upgrade would speed up my ...
2
votes
1answer
226 views

Why does OS X format MS-DOS filesystems so much faster than Windows does?

When I format a MS-DOS filesystem using Disk Utility in Mac OS X it takes only a few seconds, but when I format a FAT32 filesystem in Windows it takes several minutes. What is OS X doing differently? ...
4
votes
2answers
7k views

How can I disable CPU throttling and CPU disabling?

On a 2011 17" MacBook Pro (i7, 10.6, 16GB ram) I do not have any options in the energy saver preference panel to control CPU throttling. I need to be able to disable CPU throttling for short periods ...
4
votes
2answers
2k views

Help identify what uses the CPU when the Activity Monitor list of all processes does not help

Problem After rebooting, and with only Activity Monitor open, my MacBook Pro (10.6, i7) shows a very high idle % (98% or higher) but then shortly after drops down to 40% - 50%. In the Activity ...
0
votes
0answers
106 views

Measure Application Load Times?

Anyone know a way to measure application load times? I've looked at instruments but having a hard time pinning down the statistic/event I should be looking for. I want to measure how long it takes ...
0
votes
1answer
3k views

Is there a slowing of app download speed when an iPad is locked?

I've noticed that downloading apps continue to download in the background as well as when the iPad is locked. Is there a speed decrease in either of these situations (assuming the foreground app isn't ...
2
votes
2answers
628 views

Why does Reminders seem to be syncing with the network, even though I have reminders turned off in iCloud settings?

I started using Reminders.app as soon as I got iOS 5.0, and for me it mostly works very well. As soon as I got an iCloud account, of course I turned reminder syncing on there as well. However I soon ...
1
vote
1answer
3k views

How to troubleshoot stuttering iTunes video playback while downloading on Mac OS X 10.7.2?

Observations: Recently, not sure when it happened, with upgrade to Lion or before, but I have not been able to cleanly watch a video of any type in iTunes while something [movie, tv show, app, ...
3
votes
3answers
219 views

Can the clock speed of my 2011 MBAir i7 be slowed to conserve power?

Most of what I do with my 2011 i7 MBAir could be done with 10% of the available processor power. Is there a hack to slow the processor to conserve battery for the 95% of the time I don't need it?
3
votes
1answer
4k views

Why might my mac be running extremely slowly at times?

This sounds like a pretty open, multi-possibility question, but I'm at a loss. I continually experience my mac falling behind by several words or characters. I mainly notice it in chrome and adium, ...
5
votes
4answers
24k views

What is the fastest iOS version for the iPhone 3GS?

I upgraded my wife's iPhone 3GS to iOS 5.0.1 and now basic tasks like opening apps like Texts/Phone dialer are now slower than before. I understand the 3GS is 2 years old, but just being able to type ...
3
votes
2answers
945 views

FileVault Performance Compromise?

I'm thinking of using FileVault to secure my computer - it looks like an ideal solution for everything. However, I'm wondering - will it effect the performance / battery life of my computer ...
3
votes
2answers
268 views

Looking for a manga reader for the original iPad hardware

I'm currently using the app icomic with my 1st generation iPad and have used it for probably 2 years. It's decent, but it struggles to display very large images well. Specifically, the images become ...
0
votes
4answers
383 views

What can cause 90 second delays joining a wifi network?

I have been using my Mac Book Pro (15" Lion, latest version) for coming on a year. I used to open the cover, it would search for my wifi, and in 15 seconds I could start web surfing. Suddenly, in the ...
2
votes
2answers
120 views

How to decide on a new Hard drive for macbook pro [closed]

I have been using my Macbook Pro for about 5 years, it was the first model with the Intel chip. The 100GB hard drive is starting to go and I'm ready to replace it. I went over to Cnet to see what ...
1
vote
3answers
276 views

Worthwhile to reformat and re-install?

I had a 2 1/2 year old Macbook Pro. It was a 2.33 Intel Core 2 Duo with 4 GB of ram, 320 GB hard drive, running Lion. An employee of my company left and his Macbook Pro was a 2.66 Intel Core i7 ...
1
vote
1answer
612 views

How can I fix Firefox's jagged scrolling on Lion?

I noticed that scrolling in Firefox on Lion is not very pleasant experience. Is there a way to optimize it for better performance? I tried smooth scrolling setting - but it didn't do anything.
0
votes
0answers
197 views

iPad/iPad2 - PDF page rendering speed

I would like to know how long (in milliseconds) does it take for the iPad/iPad2 to render a PDF page. Every page and every PDF are different, of course. I am interested in average figures if you have ...
1
vote
1answer
129 views

PDF rendering - how much is iPad2 faster than iPad?

I read that iPad2 graphics is faster than iPad. I would like to know how much is iPad2 faster than iPad at PDF rendering.
2
votes
2answers
820 views

16, 32, 64 GB iPhone / iPod touch: are there any negative effects of size?

I am debating between purchasing the 32 vs. 64 GB iPod touch. I would lean toward a smaller hard drive if there is an effect of size on speed or battery life. Aside from cost, are there any reasons ...
7
votes
2answers
448 views

How can I diagnose really poor performance of my 13" MBP 2011 on 10.6?

The specs are: 2011 MBP 13" Core i7 4Gb RAM 320Gb HDD (not SSD) I use the system for work everyday, I almost always run the following: Mail.app Chrome (7-10 tabs) Terminal (2-3 sessions) Skype ...
4
votes
3answers
1k views

MacBook Air mid 2011 Geekbench results too low

My MacBook Air from mid 2011 recently only scores about ~1800 on geekbench vs 5300+ that it was before. I'm starting the benchmarking right after reboot, and the CPU seems initially calm. Any points? ...
1
vote
1answer
112 views

How to have clipboard holding many entries available simultaneously…?

I am looking for: There are many hot words which I often need to type while using my Apple MacBook Pro/Snow Leopard like say my desktop machine name, some other host names etc. Now, right now, I copy ...
1
vote
2answers
487 views

iPod Nano 2G audio started skipping during music playback - what causes this?

My 5 year old iPod Nano "2G" 8GB has recently began skipping during song playback. It sounds like when a CD skips, a kind of digital glitching sound. But lately it's gotten really bad, where it will ...
0
votes
4answers
2k views

OWC SSD freezes regularly

I installed a new 115GB SSD with a clean lion install in my MacBook pro (2010) with the data doubler containing my old seagate hdd. The install took over five hours, which made me pretty suspicious ...
0
votes
1answer
754 views

Will upgrading my 2007 mac-mini from Tiger to Snow Leopard be a performance upgrade?

I'm cleaning my old 2007 mac-mini and am wondering whether I should upgrade it to Snow Leopard while I'm at it? I want to do this only if this will be any performance upgrade. Note that I have ...