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

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0
votes
1answer
764 views

How does iPhone5 battery fare with always ON 3G, not heavy music listening (+ 1-2 hours of Bluetoth), ocassional GPS and Camera use? [closed]

I WILL keep the 3G always switched ON. Also continuous syncing of some services like Gmail, Twitter, Contacts/Calendar/Task apps, WhatsApp, FlipBoard/GoogleCurrents, SimpleNote, Instagram, IM, ...
0
votes
0answers
189 views

Apple TV required switching hardware / mobile WiFi router

I am considering Apple TV for a trips, but usually the hotels' wifis' connections are separated. I came up with using my Vodafone branded Huawei R201 mobile wifi router for that purpose, but I am not ...
1
vote
1answer
626 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 ...
10
votes
1answer
27k views

How to identify CPU and memory usage per process on iPhone?

There are many common apps available to show total system RAM usage and free. However, my understanding is only a jailbroken phone has access to the APIs to access PER PROCESS memory usage on iOS. ...
1
vote
1answer
614 views

Does Mac OS X load average reporting (via top) include processes waiting on IO?

I'm looking at the output of top to view my system's load average. I want to understand whether the load average is reporting processes just waiting for CPU, or whether it's reporting processes that ...
1
vote
1answer
706 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.
5
votes
1answer
576 views

How to isolate the most disk-active process(es) in OS X?

I have some process(es) performing a lot of drive access from time to time, however I've hitherto been unable to isolate which process or processes are performing the access. What shell command can I ...
2
votes
1answer
1k 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, ...
1
vote
1answer
868 views

Can CPU Speed Stepping be prevented?

A while ago, I asked a question regarding the reason behind my computer slowing when it had ~5% battery or less. I was told that it was either CPU speed stepping or the Macbook Pro automatically ...
3
votes
0answers
1k 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 ...
6
votes
1answer
11k 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 ...
2
votes
1answer
587 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 ...
5
votes
4answers
1k views

Are there general or specific iOS6 performance issues on iPhone 4?

I would like to upgrade my iPhone 4 to iOS6 but I'm wondering if I will get performance loss (as when I upgraded my iPhone 3G to iOS4 : terrible). Can someone confirm that it won't affect my day to ...
2
votes
2answers
733 views

How can I reproduce the Finder sort order without asking Finder to sort for me?

I work with a large collection of mostly-text files subdivided by series, periodically mirroring them from an upstream repository and repackaging them using a shell script from a slightly chaotic ...
5
votes
1answer
571 views

How To Record CPU and Memory Usage Data

I want to profile the execution of a program to see what in particular is slowing it down - whether it hits a memory cap or if my CPU is not powerful enough. Activity Monitor (the one that comes with ...
0
votes
0answers
57 views

Is there a way to monitor the stack of execution in order to find the longest hangs?

Related to this unsolved mystery: apple.stackexchange.com/questions/62416/why-do-i-get-serious-execution-lag-on-clicks-application-switching-and-general I'm wondering if there's a way to see which ...
6
votes
2answers
12k 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 ...
0
votes
2answers
286 views

How much does Hardware Growler affect performance?

I'm interested in knowing how much Hardware Growler affects performance. My MacBook's performance at some of point in time became terrible and I could not figure out the reason. The Beachball of ...
0
votes
1answer
735 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% ...
1
vote
1answer
197 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 ...
3
votes
1answer
369 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 ...
7
votes
2answers
637 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 ...
2
votes
2answers
136 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 ...
0
votes
4answers
849 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 ...
0
votes
0answers
90 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
654 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 ...
1
vote
3answers
362 views

Safari slowdown issues

Safari is quite slow when I open new tabs. I get a busy cursor, and I cannot interact with other tabs. Is there any way to make it faster? I have a 2010 MacBook Pro, MacOS 10.6.6, Safari 5.0.3.
4
votes
2answers
3k 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
2k 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 ...
30
votes
5answers
5k 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 ...
-3
votes
3answers
3k 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
533 views

Bootcamp - Multiple Windows installations, how do delete one?

I've got a Mac Pro with 3 hard drives: 1 x 7200rpm 640GB - 1/2 for OS X - 1/2 for Windows 7 (Bootcamp) 2 x 5400 Western Digital'Eco-drive' (runs like a dog and is only useful for backups and ...
1
vote
6answers
5k 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 ...
4
votes
4answers
2k views

Will the MacBook Air (2011) perform as well as my MacBook Pro (2008)?

I've got a 13" 2009 MBP (8GB, 2.53Ghz). A lot of the time it runs a Win 7 web dev environment (Visual Studio, SQL Server databases, various editors, Photoshop etc.) under Parallels Desktop. It ...
0
votes
1answer
209 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 ...
0
votes
1answer
188 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 ...
11
votes
5answers
2k views

Should you format your Mac?

Back in my Windows days, I used to fully format my PC once a year or so, to start fresh and get rid of some of the slowdowns. It helped. Would you recommend the same for Macs? What's the recommended ...
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 ...
2
votes
1answer
728 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, ...
7
votes
3answers
21k 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
586 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 ...
1
vote
0answers
270 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
2answers
4k views

Is upgrading an iMac to an SSD over USB 2/FireWire an upgrade?

I bought the smallest 21" iMac model of the 2011 update cycle. I was planning on having the HDD replaced with an SSD later on. Turned out this would not be an option. So I'm either stuck with the ...
3
votes
2answers
760 views

If I install more RAM should I boot into 64bit Kernel? Does it matter?

I've got an Early-2009 Unibody Mac Book Pro 17". It came with 4 GB RAM and by default it boots into 32-bit Kernel. I've just upgraded to 8 GB RAM and my main concern is getting maximum performance ...
0
votes
2answers
331 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 ...
1
vote
1answer
466 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 ...
2
votes
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
1answer
649 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
7answers
17k views

After installing Lion my mac became super slow

After installing Lion, my macbook pro became unbelievably slow.. what could be the reason? Safari sometimes freeze for 30 seconds (in particular when there's Flash content). When I open mail after ...
2
votes
1answer
1k 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?