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Questions tagged [performance]

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

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2answers
929 views

How to determine what keeps causing my mouse cursor to stick or slow down a lot?

Every once in a while, my mouse cursor will stop for a second, or move extremely slow, every half minute or so. I recently upgraded to High Sierra, but also noticed this occurring when running Sierra. ...
4
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0answers
764 views

after High Sierra upgrade: very slow opening big files > 1 GB and message “Verifying”

When opening a big file (for example with VLC or QuickTime) this message pops up for lots of seconds (different durations for each file): I use encryption on iMac 5K. > diskutil list /dev/...
1
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1answer
1k views

MacBook Pro 2012, HDD speed 80MB read/write normal?

I have a MacBook Pro 13" (non-retina) from 2012 with a 512GB HDD. I've run some speed test with BlackMagic and those are around 75-80MB/sec for read/write. This seems slow, but maybe this is normal ...
1
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3answers
501 views

How to speed up my iMac after upgrading to Sierra?

I have this: iMac (21.5-inch, Late 2012) 2,7 GHz Intel Core i5 16 GB 1600 MHz DDR3 NVIDIA GeForce GT 640M 512 MB Some days ago I updated to Sierra 10.12.6, and all my apps. My HD currently have ...
1
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1answer
170 views

Transfer speed much slower in Wi-Fi than Ethernet

I'm transferring a lot of pictures from my Macbook Pro to a local Synology NAS (DS116), using an FTP software named Transmit. I noticed that the upload speed is quite different between Wi-Fi and ...
1
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1answer
91 views

Install second operating system on internal (as VM with Parallels) or external drive?

I am using an old MacBook and I want to keep my operating system. For coding with Xcode I would need a newer version of OS X. My question is, if the performance is better when I: Install the new ...
0
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1answer
996 views

Skype on MacOS keeps 600Mb caches, are these both deleteable?

Skype (7.56.0.776) on MacOS (10.10.5) keeps 600Mb in the two caches below, are these both deleteable without any negative effects? Can I prevent Skype doing this with any (Skype or MacOS) config ...
1
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1answer
310 views

Are loading times using a USB hard drive slower?

I recently installed Snow Leopard on a 2 TB USB 3.0 hard drive for my 2009 White MacBook, since the internal hard drive is broken (it no longer shows up during boot or in Disk Utility). The external ...
9
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1answer
739 views

My MacBook Pro, High Sierra downloaded 13G last night while asleep

The system was presumably closed at my workplace. How can I find why ? Some light on those 13Gb ? How Activity Monitor finds those numbers ? I will be glad to provide more information while the ...
3
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2answers
2k views

How to stop throttling

How could I improve the performance of my MacBook and stop throttling? Although the CPU load is not by 100%, the CPU cores heat up to 100 degrees.
0
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1answer
677 views

MacOS Sierra how to reduce priority of iCloud drive sync?

I have an older Macbook air and since upgrading to Mac OS Sierra get major performance issues. I see over 1000 threads in activity monitor and am trying to understand if it is due to iCloud drive sync ...
1
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2answers
94 views

How to optimise my script, a script for opening new a new emacs instance only if no instance is present

I use emacs and I have written a script which is half in bash and half in AppleScript in order to do the following (first I write the code and then the pseudocode). We assume that a emacs daemon is ...
4
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1answer
3k views

MacBook Pro 2017 SSD write speed slow

I just bought a new MacBook Pro 2017 (no TouchBar) a month ago. I have run a speed test with Blackmagic Disk Speed Test application. The result is in image below. I think SSD write speed is a little ...
4
votes
1answer
2k views

Does an iPhone throttle its CPU under heavy load?

I noticed some Android devices clock down after a while. So they only may perform at peak performance for a single benchmark. Is this also true for iOS devices? How do they behave under heavy load, ...
1
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1answer
628 views

Ridiculously Slow Macbook Pro 15inch Early 2013

I stumbled on other posts about the Ridiculously Slow Macbook pro 2013 That were remedied by replacing the harddrive cable. I am dealing with agonizing sluggish behaviour on my mac, It seems to be the ...
5
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2answers
2k views

Mac OS UI Slow Response

I am new to Mac so forgive the naive question. I have used Windows & Linux for a long time in the past and no matter how slow the system becomes (this actually applies almost only to Windows), the ...
2
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1answer
5k views

27‑inch iMac 2017 i5 vs. i7 [closed]

I own a bit old MacBook Pro (Retina, 15-inch, Mid 2014) with 2,2 GHz Intel Core i7, so I'm considering replacing it with a new iMac, but not sure which CPU should I choose. 3.8GHz quad-core Intel ...
1
vote
1answer
2k views

Speed of Card Readers Speeds of Macs

Is there a way to find the read/write speed of the SDXC card readers on Macs? I've been looking for it in System Information, or some chart on the web, to no avail. (I'm specifically looking for ...
2
votes
3answers
220 views

Upgrading RAM in Late Model 2009 iMac

Is it worth upgrading an iMac late 2009 model to max RAM at 16gb for video editing/exporting? Currently to export a 3gb video file in Final Cut Pro it takes 1 - 1.5 hours to export the file. Is it ...
1
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1answer
137 views

WiFi Performance via Terminal

Is it possible to test the performance of a WiFi via the terminal? Basically, I want to check how good WiFi is in some spaces of my home to figure out where to place a access points. Can the ...
2
votes
1answer
112 views

What physical maintenance should I perform on a MacBook Pro?

I have a 2009 and 2013 MacBook Pro (MBP). My wife has a 2015 MBP. I'd love to maximize their lifespans by taking care of them physically. What there any physical maintenance that I can perform on ...
2
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2answers
3k views

softwareupdated running at 100% CPU roughly every hour (Yosemite)

Roughly every hour, my MBP gets very hot, my fans go crazy, everything slows down, and when I look in Activity Monitor it tells me that softwareupdated is running at 100% CPU. It lasts about 2-3 ...
4
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1answer
3k views

kernel_task Virtual Memory Size too high

I'm using MacBook Pro ("Core i7" 2.5 15" Mid-2015 (DG) 2.5 GHz Core i7 (I7-4870HQ) 16GB RAM) with MacOS Sierra 10.12.4 on it. After connecting a new LG 34UC98 Monitor I faced some heat problems and ...
1
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0answers
8k views

Mac performance issues and dyld cache

I have MacbookPro mid 2012, Sierra 10.12.4, 512 GB HDD (the initial factory disk), and 16GB RAM (2x8GB, memory was upgraded from the initial 4GB). Periodically I get the spinning pinwheel of death (...
2
votes
2answers
462 views

How to introduce a list object that is stored in a .txt file to an AppleScript?

I have an AppleScript .scpt file, triggered by a key combination in FastScripts.app, that functions as a thesaurus. The script looks up the selected word in a pre-formatted list, and, if the word is ...
1
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0answers
581 views

My Mac Pro fans completely refuse to speed up

I recently purchased this 4,1 Mac Pro in pristine condition. Only issue is, none of the fans will speed up under heavy load. The temps can go up to 90°C and none of them speed up. I can manually speed ...
2
votes
1answer
2k views

How to disable the power management of the CPU on a MacBook Pro?

Since few days the battery of my MacBook Pro (Retina 15 inch, running macOS Sierra 10.12.4) is not working anymore. Since then, my computer performance is really bad: everything is slow and freezing,...
0
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0answers
454 views

OS X Parallels: what are ways to speed up Windows 10 Pro virtualization?

We have two OS X laptops running Windows 10 Pro in Parallels where the other laptop is terribly slow, despite allocating 4 "cores" and 8 GB to the virtual machine. Each laptop has 8 "cores" (with ...
21
votes
4answers
581 views

Multi threaded CPU intensive task throttles CPU way before temperatures limits

I have written a very CPU intensive threaded task that works as expected on my 2012 MacBook Pro quad core. I turn it loose with 20 threads and the temperatures get up to about 100 °C as measured with ...
7
votes
2answers
2k views

iPhone 6s noticeably slower (geekbench)

I have got an iPhone 6S on October of 2015. Sometime in 2016, I downloaded Geekbench 3, to benchmark the device. My baseline results are: (5 runs) Single: ~2500 (2450-2550) Multi: ~4400 Now, I ...
2
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0answers
125 views

Late MBP 2015 vs MBP 2016 gaming experience (WoW, HotS)

I fully understand these machines are not designed for gaming at all, but I was wondering if you guys can tell me approximate FPS for these games: World of Warcraft Heroes of the Storm with let's ...
5
votes
1answer
422 views

Make terminal command use both CPU cores

This may be a bit of a easy question, but I couldn't find anything about it after googling a bit, sorry! Is there any way to make a command use both of my CPU cores? I am currently processing some ...
1
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0answers
335 views

Why are read/write speeds on my Time Machine drive so low?

So I have an external SSD connected with a SATA to USB 3.0 adapter to my retina MacBook Pro. The wire supports speeds up to 6 Gbps. I could write to the SSD itself at such a high speed. I created two ...
0
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1answer
750 views

Finding Peak Memory Bandwidth on MacBook Pro

I am required to find the peak memory bandwidth for a 2016 MacBook Pro. Where can I find this information?
3
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1answer
91 views

How to prevent Script Editor from scrolling (and losing cursor location) on compile?

I have some lengthy .scpt files. By "lengthy," I'm talking character counts (excluding spaces) of 200,000. I use Script Editor.app to create and edit AppleScripts (simply because Script Editor was ...
2
votes
1answer
303 views

What should I do about a Mac Mini whose fusion drive is getting steadily slower and slower?

I have a 2012 Mac Mini (running OS/X 10.11.6) with an Apple-provided internal 1TB fusion drive that appears to be suffering from some kind of performance problem -- it seems to be getting slower and ...
0
votes
1answer
105 views

El Capitan (or newer OS) on a MBA late 2010 [closed]

I've an "old" MacbookAir 11" (late 2010, 4GB of RAM, 180GB SSD), which I've loaned to a friend. Now he gave it back to me, and I'm planning to use it as a "mobility" machine. My problem is that the ...
3
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0answers
1k views

Choppy/Jerky Video Performance on MacBook Pro 13" 2016

I upgraded from a Late 2013 MacBook Pro 15" to the 2016 13" MacBook Pro. On my old laptop, watching YouTube videos, and PlayStation Vue was smooth. However, on this new laptop, the video is jerky/...
3
votes
1answer
558 views

MacBook Pro - Install slower memory than specified?

I recently bought a a pair of DDR3-1066 SODIMMs to upgrade a Mid-2010 MacBook Pro. On the packaging for the memory, it says "Compatible with MacBook Pro: Mid-2010, Early-2011, Late-2011". However, ...
2
votes
0answers
117 views

iOS frame rate drop without maximum device utilization

I am making an iOS game using Unity. I am testing some shaders that I have made for the game, and in some cases the device will run at under 30 FPS but not have 100% device utilization. Sometimes a ...
2
votes
1answer
2k views

Is a 2.4 GHz Intel Core 2 Duo better than a 2.0GHz dual-core Intel Core i5 with turbo Boost up to 3.1GHz? [duplicate]

I think my 2008 Macbook is about to bite the dust and wanted to buy a new Macbook Pro.....I noticed that I have the option to purchase a 2.0GHz processor which has a 3.1GHz "turbo boost". Would the ...
3
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0answers
191 views

Activity Monitor lagging and requires force quit? [closed]

Activity Monitor itself, any time I open it, lags horribly and shows a spinning "beach ball." It continues to lag horribly until I right click on it in the Dock, wait several seconds for the context ...
4
votes
1answer
2k views

Macbook Pro CPU throttling

I'm new user of a brand new 15" Mid 2015 MacBook Pro (i7 processor), which I got about a month ago. I've been having problems with performance. Every time I try to do anything more CPU consuming than ...
1
vote
1answer
57 views

My MacBook Pro is taking time to load after signin

I'm facing strange issue with my new MacBookPro(4GB RAM). It is taking more time to load apps after signin. And when I click on any app, it is stopped responding for some time. I did FirstAid to my ...
1
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1answer
427 views

How to compare the performance difference between the 13“ and the 15” MBP for graphics & dev work? [closed]

I have a 2011 Macbook Pro (with a SSD and 16GB RAM upgrade) that I'm very happy with, but it's aging, some ports aren't working anymore, etc., so I'm in the market for a new device. I do some amount ...
1
vote
0answers
320 views

How can I force a process to swap into virtual memory?

I'd like some inactive processes to app swap into virtual memory, freeing main memory up for other uses. I have created a few shell scripts - sleepchrome, sleepfirefox, and ...
2
votes
2answers
930 views

Game performance halved with screen mirroring on macOS

When I run Portal on my MBP with no external screen connected I get a solid 60 fps. When I connect and mirror another screen (same resolution and game settings) it drops to 30 fps, sometimes 20, and ...
2
votes
1answer
589 views

Using slower memory?

Mac mini 2011 uses 1333 MHz 1.5v DDR3 memory. My "new" 2012 mini uses 1600 MHz 1.35v DDR3 memory. I'd like to reuse the slower memory in the newer mini. I'm not adverse to trying this but I'm ...
1
vote
1answer
590 views

My mac is sluggish and something is taking up a lot of my CPU

Any idea what quicklookd is? It seems to be using up a lot of my CPU resources. I'm running MacOS Sierra 10.12.1 on a Macbook Air.
1
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2answers
3k views

Is my BootCamp-ed Windows seeing less VRAM than my Macbook (Pro, 13", mid-2014) actually has? If so, how can I make it see that it has more?

(TL;DR below) So I've recently installed Windows on my mid-2014 Macbook Pro Retina 13" to play some games. I never expected super incredible performance in 3D games, but nevertheless I have been ...