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

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3
votes
1answer
38 views

Is there perf profiler tool for Mac to trace all page faults?

I'm looking to install perf which is a kernel profiling tool for Linux. Basically I'm trying to trace all page faults, so I run equivalent of: sudo perf record -e page-faults -ag Is it possible to ...
0
votes
1answer
15 views

Should I have my MBP “take breaks” while working hard, or are its fans sufficient?

I want to transform some data by doing (from Terminal) a Python command that runs on a single core only and doing something I expect to be CPU bound once data is pulled from disk and is accessible at ...
0
votes
0answers
52 views

Mac OS X, TrueCrypt/VeraCrypt, Encrypted HFS+, performance

My question is about the disk I/O performance with different kinds of encryption as it seems that my laptop is suffering from some problems. First, let me describe my hw/sw setup: MacBook Pro (15-...
1
vote
1answer
23 views

Is there a meaningful performance index to compare various MBP generations?

Is there a simple but meaningful performance index for comparing various generations of MacBooks, and their different configurations, with a focus on everyday graphics and web development work? I ...
0
votes
1answer
93 views

Simcity 5 on the new Macbook 12" 2016 Model

I bought a Macbook 12" early April 2016 Model the other day and I really want to know if t will run Simcity 5. I tried running 'Can I Run It' but that doesn't work on Macbook's so I need some help to ...
1
vote
1answer
44 views

Why is my Mac Mini not Turbo Boosting?

I have a late 2014 Mac Mini, with the i7 option, 3 Ghz turbo boosting to 3.5 Ghz according to Apple. To give the system some work to do I am running a ray trace: $ time povray --benchmark +WT1 This ...
0
votes
1answer
26 views

Fastest way to disable daemons gone wild; how to know if attempts to interrupt will break app?

As software advances so do the installers, which have become vehicles for all kinds of needless bloat ware. I do not believe this to be an inevitably, its possible for software to progress without ...
0
votes
0answers
35 views

Using disk makes things slow on El Captain

If I run following alias in my $HOME directory: biggest_files='find 2>/dev/null . -type f -ls | sed -e "s/[[:blank:]][[:blank:]]*/ /g" | cut -d" " -f 7,11- | sort -nr | head -25 | awk "{ printf \"%...
1
vote
0answers
79 views

iMac 5k internal SSD vs external SSD performance

Can anyone point me in the direction of a real-world performance comparison between a iMac 5k's internal SSD and an external one (ideally one on thunderbolt and one on usb)? Basically, I want to know ...
0
votes
1answer
299 views

How to stop kernel_task from constantly using over 400% CPU?

Configuration: Model Name: Mac mini (Late 2012) Model Identifier: Macmini6,2 System Version: OS X v10.11.3 (El Capitan) For the past few weeks, kernel_task has been using over 400% CPU and its ...
3
votes
1answer
26 views

How Does El Capitan Improve Application Load Times?

One of the claims for El Capitan is that it improves load times for applications up to 40%, but has anyone identified what this actually means? Are only specific applications affected? For example, ...
1
vote
3answers
308 views

Is this external USB3 drive really this slow for my Macbook TimeMachine backup?

I got myself this WD 2TB USB3 external harddrive for backups: http://amzn.to/1X8b3a8 I connected it to the USB 3.0 port of my mid 2015 Macbook Pro 15". When I run Time Machine, it really takes ...
0
votes
0answers
129 views

WiFi slow down drastically when iPhone 6s connected

Good day everyone.. (not good for me obviously) I have questions about my iPhone 6s (iOS 9.3.2) connecting to my TP-Link Router (Model No. TL-WR740N / TL-WR740ND) and its performance. Whenever I ...
0
votes
1answer
21 views

MacBook gets heated up

I am running on macbook pro 2015. Since, few days, I have noticed a significant degradation in it's performance. Here is the screen shot of the activity Monitor. Can someone please help me on, how can ...
0
votes
0answers
42 views

I don't get proper internet speed on mac

I don't get proper internet speed on my macbook pro mid 2015 model. My ISP have one FTP server where I get on average 5 to 6 MB/s speed and internet speed about 300 KB/s in other website on my other ...
3
votes
1answer
47 views

Is there any part of OSX that gets a significant speed boost from Intel AES instructions?

I've been comparing some specs between Mac Pro models, specifically with the jump from Harpertown (a.k.a. Core 2) to Gulftown/Westmere (a.k.a. Core i7). While there were expected incremental ...
2
votes
4answers
98 views

Does force closing apps have any benefit on iOS devices?

I've gotten mixed answers from various websites and people concerning this question, and I wanted to put it out there for all of you to answer once and for all. The question is, does force closing ...
3
votes
2answers
144 views

Macbook Pro Hard drive speed

I have an early 2011 Macbook Pro with a Toshiba MK7559GSXP 750GB 5400rpm hard drive (that has about 48GB free) and running El Capitan. Recently I had the feeling that things were running slowly (and ...
1
vote
2answers
49 views

iMac (Late 2015) using swap when there's still plenty of RAM left

My wife's new iMac is behaving rather oddly. Despite being a pretty powerful machine, it's rather slow and laggy. I looked into it, and it seems her swap memory is maxing out, even though there's ...
0
votes
0answers
18 views

Typing and UI lag, yosemite

I have a macbook pro 13" mid 2009 with SSD and 8GB RAM. It runs Yosemite 10.10.5. When I changed the original HD with an SSD and installed Yosemite (a few months ago), the computer started working ...
0
votes
0answers
35 views

Is there a way to change only the horizontal scrolling speed on an apple corded mouse?

I have the latest macbook pro running the latest osx and i am using the corded mouse. Hope i could use the magic mouse but i am stuck with the crap corded one for now. I can say i am OK with it, apart ...
0
votes
0answers
11 views

What happens when PCIe boost circuits are overloaded?

In my understanding, the 2010 Mac Pro is rated for 75W of power for each PCIe slot, plus 75W for each of the two 6-pin boost (aux) circuits. I know it's possible to exceed these limits, because I do ...
2
votes
0answers
32 views

Why does my Mac slow down when the volume/brightness indicator fades out?

I frequently change the volume and brightness on my computer. Usually I modify them to more or less match my surrounding physical(!) environment. But there's this one annoying quirk with changing my ...
1
vote
1answer
32 views

Why is this stock iMac so slow at launching apps?

I bought a refurb iMac from apple.com: 21.5", late 2013 2.9 GHz Core i5 8 GB DDR3 Geforce GT 750M 1024 MB 1 TB SATA Disk No SSD, but this should still be performing well for basic tasks. It's ...
0
votes
0answers
49 views

Java/Scala programs running on my mac are slow

I'm using my Mac machine (Macbook Pro 2015, with SSD) for work, doing mainly Java/Scala development with it. The machine I'm currently using is about half a year old, fresh install, with some ...
1
vote
1answer
74 views

Do Sophos and Spotlight conflict and if so, how can I run both applications without problems?

I just got a brand new 13" MacBook Pro at work. I have noticed that Spotlight has been running constantly giving me ~4 hours of battery life. The motivation for getting this laptop was to have the ...
0
votes
0answers
22 views

Is there an alternative to hiding an application that will reduce the performance demand?

I'm just wondering if there is an alternative to hiding an application, that can reduce the performance demand of a program. I'm curious because I use blender from steam, but steam won't close unless ...
0
votes
0answers
19 views

Limit frame rate on specific apps? (speedhack)

I'm working on an application that tests a player's reaction speed level by level, however I'm having difficulties implementing higher levels as my own reaction speed is only average. Is there any way ...
1
vote
1answer
105 views

VLC 2.2.2 and OS X El Capitan Issue

I have been using VLC Player for 7 years and after update to 2.2.2 It is really painful to use it with El Capitan. It is very slow to forward or backward, It constantly freezes and lots of time the ...
0
votes
1answer
49 views

Why Gigabit Ethernet Direct Connect is not default at Macs?

Trying to connect two Macintoshs with a Ethernet cable (capable of Gigabit speed, of course) will not automatically set a gigabit connection. Instead of this, a 100MB connection is established. Does ...
1
vote
0answers
48 views

Why exactly do people consider the Mac Pro 3,1 (Early 2008) PCI bus too slow for fast GPUs?

I've upgraded the GPU on my MacPro3,1 (Early 2008) from the original 8800GT to a 6870 and things were fine. I've been looking recently to take it another notch up the ladder, but I've stumbled across ...
3
votes
1answer
45 views

MacBook Pro mid 2012 13.3 HDD cable performance

I am helping a friend to fix her MacBook Pro 13.3 performance problems. It was barely booting, and terribly slow for disk seeks. Then I replaced the HDD. It was perfect with new SSD and El Capitan ...
0
votes
0answers
6 views

iPad Update from iOS 6 -> iOS 8 and back again, possible? [duplicate]

I have an iPad 3 with iOS 6 which runs buttery smooth. I want to update to iOS 8, since I saw that it ran quite okay on my friend's iPad. My iPad 2 with iOS 9 has become unusable though, too slow, and ...
0
votes
3answers
3k views

Should I upgrade my iPad 2 to iOS 9.3 from iOS 5.1.1? ( Late March 2016)

I recently recovered my lost iPad 2. I cannot afford a new tablet at the moment and I will use my iPad 2 as a daily driver (to browse the web, read books, college lectures, play games and other light ...
1
vote
0answers
65 views

Severe performance issues with my Macbook Pro Retina 13 - mid 2014

A few weeks ago I bought a used Macbook Pro Retina and I've been having severe issues with it since. The first thing I did when I bought it was to upgrade from whatever version of OSX it was using to ...
1
vote
4answers
494 views

What's slowing down my Mac?

I have the following mac: iMac (27-inch, Late 2013) 3.4 GHz Intel Core i5 8 GB 1600 MHz DDR3 NVIDIA GeForce GTX 775M 2048 MB It has a HDD, and I have 240GB out of 1TB free space. I'm on OS X El ...
0
votes
1answer
230 views

How can I test my LAN speed between Mac and Apple TV?

How can I test my LAN speed when I do not have two computers? I have a Mac, an iPhone, and Apple TV. I want to see the strength of my home network. I don't care about testing my internet connection, ...
0
votes
0answers
94 views

Throttle ONLY Internet upload in El Capitan (not all network activity?)

I've got a mac mini running as a (mostly) headless server. Occasionally in the day it brings my horrendous internet connection down by maxing out the upload with various services it runs. I was ...
0
votes
0answers
26 views

MacBook Pro 17" Late 2011 - Does the Optibay support SATAIII SSD?

I have a Late 2011 MacBook Pro 17" with an SSD in the main drive slot and a HDD in the optibay. Yet I was interested in installing a RAID0. I have checked with system profiler to see that, of course, ...
0
votes
1answer
655 views

Macbook Pro Differences (2015 vs 2016) [closed]

I was looking into getting a Macbook Pro 15 inch with Retina Display. I've never owned a Mac so I did some researching while looking at what to get. I saw a lot of articles saying to wait for the 2016 ...
1
vote
0answers
64 views

Wi-Fi speeds very slow on iPhone 5

I have a strange problem with my iPhone 5 running iOS 9.2.1. When I first join my home Wi-Fi network, it is running nice and fast. I use the Speed Test app and measure 60 Mbps down, 4 Mbps up, which ...
2
votes
1answer
512 views

Typing into Safari on iPad extremely slow

We have an iPad mini 2 running iOS 9. Ever since upgrading, any text field in Safari is painfully slow, generally taking 2 to 4 seconds before responding, and then doing so in fits and jerks. This ...
0
votes
0answers
42 views

Can I conclude that I have to upgrade my mac's RAM based on these stats?

My 2012 13 inch MacBook Pro has become real slow, even when just a few programs like Itunes, Safari or Spotify are opened. I've been cleaning up my HDD, but I don't feel like it's speeding up. So I'm ...
1
vote
2answers
54 views

Is it possible to limit resources to a game? Or forcibly limit the FPS

I recently bought and installed a new game through steam 'besiege' if you were wondering, and it ran really hot on my computer. On other games such as CS:GO for example you can cap the FPS in game ...
1
vote
0answers
42 views

Mid 2012 Mackbook Pro performance problems

I bought an used Macbook Pro Mid 2012 and it has performance issues. Basically it hangs from time to time even when its not under heavy load. I started to inspect the possible causes and I found out ...
-1
votes
3answers
104 views

Is the new 2015 Macbook Pro slower than my mid-2012 MacBook Pro? [closed]

I need to return my computer to the company I worked for (after all, they own it) so I'm looking into buying a new MacBook Pro. To my surprise their Mid 2012 model is: Compared to the slower models ...
1
vote
1answer
374 views

cpu is 100% used, yet no application shows significant usage

Since a few days my IMac started showing weird behaviour. In Activity Monitor it shows that my CPU is 100% used. Literally 0% idle, but there are no Applications using anywhere near this much ...
1
vote
1answer
160 views

Why does Finder slow down and start beach balling after heavy use?

I am experiencing the following issue in Finder on OS X Yosemite 10.10.5. After working for sometime heavily on it, usually about 10-15 minutes, navigating in directories, moving/copying renaming ...
1
vote
2answers
35 views

Fresh install after CPU upgrade

When installing a program on a Mac does the installer consider processor speed and number of cores in order to tailor the programs performance, and if so will upgrading processor architecture from ...
12
votes
5answers
3k views

How to slow down clock speed of processor

I recently bought a new MacBook Pro which sometimes goes too fast. I frequently program for Mathematica, and on my old 2007 MacBook Pro I usually got a feeling for inefficient code when it runs ...