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

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3
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0answers
900 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 ...
2
votes
0answers
81 views

Prevent Open/Save dialog from solliciting external hard drives

I have several external drives, which I don't use constantly, and so they spin down, and rest. Unfortunately for me, every time I have the "Open..." or "Save..." dialogs, Mac OS X spins these hard ...
2
votes
0answers
77 views

What causes playing a video in browser to take up all the RAM?

I've been noticing lately that when I'm playing a video on my Mac from say Hulu, Netflix, Youtube, any video site via a browser, the computer gets extremely laggy for 5 minutes and then acts normal. ...
2
votes
0answers
253 views

OS X 10.9.2 has slowed down MATLAB

I am using 10.9.2 late 2013 computer to analyze my data, specifically with MATLAB, and generally I have many MATLABs open in parallel, doing some analyses for me. MATLAB, X or Y is completely ...
2
votes
0answers
45 views

Chrome loads very slowly while Safari very fast

Chrome loads any web page very slowly. Even making a google search takes more than 15 seconds while the same occurs in Safari instantaneously. I cleared the cache and disabled NPAPI plugins as ...
2
votes
0answers
350 views

AppleScript to find old mail messages is slow in ScriptEditor

So I have an AppleScript that iterates over all the messages in various mailboxes and finds messages which meet various criteria and moves them to Deleted Items. The mailboxes in question are ...
2
votes
0answers
552 views

How to fix 10.8 internet sharing resulting in poor file sharing performance and no Time Machine server?

TL;DR - File sharing performance is extremely poor on a Mac Pro running 10.8.2 with file sharing enabled. Using it as a Time Machine server also no longer works in this setup. I have been ...
1
vote
0answers
41 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 ...
1
vote
0answers
211 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?
1
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0answers
31 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
0answers
37 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
0answers
44 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!
1
vote
0answers
33 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 ...
1
vote
0answers
235 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 ...
1
vote
0answers
300 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
99 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 ...
1
vote
0answers
169 views

Is there an update for the MacPro3,1 overclock utility that ZDNet produced several years ago?

The Mac Pro from 2008 (MacPro3,1) is still a fairly relevant machine in the modern OS X as not only does it run the latest releases of OSX, but also the 8 CPU cores that it came with provide enough ...
1
vote
0answers
34 views

Preview scrolling speeds?

When using Preview (on OS X 10.8 & 10.9) I noticed that the scrolling speed is too fast. I often read long documents and want to see in advance what are the chapters coming a few pages later. ...
1
vote
0answers
404 views

Has a Graphics Driver or Something for Intel HD 3000 Been Changed in Mavericks 10.9.3?

So I updated to Mavericks 10.9.3 and didn't really thing anything of it, it just said security updates. After playing a few games and working on my project with OpenGL, I've noticed that performance ...
1
vote
0answers
63 views

Terminal speed up doesn't accept command line arguments from outside source?

From a previous suggestion I changed terminals startup command from default to '/usr/bin/bash' which I created as a link to '/bin/bash' which stops terminal from login in every time I open a tab ...
1
vote
0answers
120 views

Does free disk space actually help mac performance?

Anyone will tell you that freeing disk space will make your mac faster - specially noticeable if your disk is almost full. I don't know if that's true. Is it? And why, exactly? I just don't see how ...
1
vote
0answers
124 views

Show iPhone connection speed

I'd like to know if there is a way to show the current mobile link speed on my iPhone 5s. I mean the "physical" max. of the currently negotiated connection to the cell tower, not the actual ...
1
vote
0answers
108 views

Spring 2010 MBP discrete GPU performace vs current MacBook Air?

I have been using a mid-2010 MacBook Pro with 2.66GHz Intel Core i7 processor, 8 GB RAM, 7200 RPM 512 MB hard drive, and a NVIDIA GeForce GT 330M 512 MB discrete graphics card. After almost four ...
1
vote
0answers
280 views

How do I remove akamai and speed up my iMac?

I have an iMac (running Leopard) going deadly slow, I discarded any hardware problems (Hardware tests, disk utility, etc..) and the only strange thing I've found is a folder called 'akamai' After ...
1
vote
0answers
999 views

What are the consequences of running the 13" retina MPB in higher native resolutions

This question is basically about how do different resolution settings affect the performance of your macbook. By default retinas are set at the "retina" display mode. You can also set them to the ...
1
vote
0answers
88 views

Acceptable and unacceptable speed for an external USB disk

I think my external HDD is running way too slow but I am not sure. Using XBench I get the following results: Seq: Uncached Write 0.79 0.49 MB/sec [4K blocks] Uncached Write 0.21 0.12 MB/sec ...
1
vote
0answers
72 views

MacBook Air is slow after inserted and removed USB audio player

I have a first generation MacBook Air. I plugged in a USB memory stick, which is actually a 2 GB MP3 player but serves as a memory stick as well. Finder never shows the content of the memory stick. ...
1
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0answers
41 views

TimeMachine performance issues on OSX Server 10.7.4

we are running OSX Server 10.7.4 on a MAC Pro (Mid 2010). Enabled services are Mail, Calendarserver, Contacts and Websharing. The Server has a Xeon Quad CPU and 32GB of RAM. A timecapsule is ...
1
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0answers
135 views

Macbook Pro Late 2011 stuck at 0.8 GHz

I have been experiencing a lot of problems with my Macbook Pro slowing down and crawling through small tasks like getting mail and opening Launchpad. I have 8 GB of 1333 MHz DDR3 memory and a 2.2 GHz ...
1
vote
0answers
115 views

System very slow while and after login

I'm using OS X 10.8.4 on a Mac Mini with 2.3 GHz Core i5 and 8 GB RAM. For security reason I have to lock my computer to screensaver while I leave my seat for a while. I set it up so that password ...
1
vote
0answers
319 views

Why are disk images on AFP shares being disconnected?

I have a FreeNAS File Server which provides AFP shares to my Mac OS X clients. I'm seeing some strange performance issues between OS X 10.7.5 clients and the FreeNAS server. My goal is to use the ...
1
vote
0answers
182 views

Is 3G-less iPad considerably faster on wifi than iPad 3G?

I've just experimented with three 3G-less iPads and they all were much faster than this one iPad 3G that just never goes through my 128mb download, all over the same wifi. They're also all 16gb, if ...
1
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0answers
221 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
0answers
147 views

How about Parallels 7's Lion support especially in graphics performance?

I heard that Parallels 6 lack of GPU acceleration with Lion guest. So it's very slow. How about this on Parallels 7?
0
votes
0answers
54 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 ...
0
votes
0answers
24 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 ...
0
votes
0answers
22 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 ...
0
votes
0answers
34 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 ...
0
votes
0answers
98 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
0answers
26 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 ...
0
votes
0answers
162 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 ...
0
votes
0answers
77 views

Macbook Pro 17 Early 2008 - Mountain Lion - SSD Slow Performance

I have noticed significant performance degradation on my Samsung EVO running on an Old Macbook Pro, Intel Core 2 duo. Are there any SSD tips that I should apply to this hard drive? Will Trim Enabler ...
0
votes
0answers
150 views

Internet Speed Issues on iPad and IOS 8

My iPad4 is running slower on IOS 8.02 than on IOS 7. I noticed this when I updated to IOS 8 several weeks ago. My Optimum service provides 50/25 download/upload megabit service, which I experienced ...
0
votes
0answers
43 views

top / htop for GPU?

I have been having some of the worst performance problems with my Mac Pro that I've ever seen. It seems to start at the darnedest times with no apparent provocation. I've poured through everything ...
0
votes
0answers
43 views

Advanced techniques to diagnose performance problems on OS X via DTrace or other means?

I am having some severe performance problem with my OS X workstation at the moment that is proving to be exceptionally elusive. I normally can hunt things down with a handful of tools such as top or ...
0
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0answers
148 views

MacBook Air CPU Limit Notification

My MacBook air is intermittently slowing down and has very high fan speeds. It went to apple for a replacement logic board and has had these issues since the replacement. Running application monitor ...
0
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0answers
155 views

How to clean up my iPhone 4S junk files?

I have used my iPhone 4S for about 2 years during which time a lot of junk files left. Does anybody know some clean software that can this for me?
0
votes
0answers
2k views

Performances : Intel HD3000 vs AMD Radeon HD 6490M

I'm working on a MBP 15" 2011 with a new motherboard (Apple changed the previous one in december) and I've now this config : i7 Quad 2.0Ghz; 12 GB DDR3; 250GB SSD samsung 840; Intel HD 3000; AMD ...
0
votes
0answers
355 views

How is swap on mid-2013 MacBook Air w/ PCIe SSD?

There appears to be confusing and incomplete information about the PCIe SSDs in mid-2013 MacBook Air 11" and 13" (especially the 128GB models), where a different queue depth may result in different ...
0
votes
0answers
621 views

Sometimes I can run Civilization V on my 2013 MacBook Air, sometimes not, why?

I realise the 2013 MacBook Air doesn't quite meet the game's minimum requirements, but I can sometimes run Civilisation V. Sometimes it loads, fires up the fan, but sits there with a blank screen ...