Questions tagged [performance]

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

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5answers
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Does battery condition have anything to do with macbook pro performance?

Hello I'm using a mid 2015 MBP. My battery lasts 1-2 hours now, I got this text Condition: Replace Soon on the battery icon. Other stuff are my computer sometimes heats up, gets really slow and ...
0
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1answer
22 views

Lag on 4k external monitor and MacBook Pro (early 2016, internal graphics) running in retina mode: can bad cable be a reason or just not enough power?

I just bought new monitor (LG 24UD58-B) because of my MacBook's flexgate issue (when you can't really open lead). I can't bring it to service yet, because where I live it takes up to 5 weeks and it's ...
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0answers
37 views

Why does my mac suddenly have long pauses until I restart it?

I will wake my mac up from sleep. I enter the password and push enter; it takes 10 seconds to unlock. All actions are delayed; a chrome tab will show blank before rendering the page. Clicking on the ...
9
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2answers
1k views

Do application leftovers have any impact on performance?

Apparently, uninstalling an app by dragging it to the bin may leave application leftovers in some folders (such as Library/Preferences/, Library/Applications Support/, Library/StartupItems/ etc...). ...
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3answers
51 views

Determine which app is opening too many files

Sometimes my Mac starts behaving weirdly, a typical symptom being that I can't open certain apps that were working just fine recently. This just happened and I traced this issue to an excess of open ...
3
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2answers
48 views

Could I take a Core i7 form a 2012 MBP and put it into a 2018 MBP?

I know very little about computer hardware so I thought I might as well ask. I have an Intel Core i7 in my MacBook Pro Late 2012. I am considering getting a 2018 MacBook Pro. I was wondering if it is ...
3
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1answer
70 views

Poor WiFi Performance on iPhone

When migrating to a new router I remarked my iPhone (7Plus) had lousy TX performance compared to the other 80211.ac Apple devices connected to the same wireless SSID as revealed in below screenshot: ...
0
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1answer
38 views

How can I fix poor Java performance caused by Mojave update 10.14.6?

I installed the 10.14.6 macOS update yesterday, and now Java is performing very poorly. This is especially noticeable when using Maven to build Java applications. There are projects I build ...
1
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1answer
115 views

Very slow write performance 30min+ for 2GB - APFS?

Yesterday I have been working with Docker on my MacBook Pro 2012 which runs Mojave and the internal drive has been automatically converted to APFS (seems to be so for startvolumes since Mojave). It ...
3
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1answer
128 views

Should I be worried if the newest Macbook Pro specs are lower than my older Macbook Pro spec?

I just went to Apple's website (July 2019) to find the maximum processor spec of a 15-inch Macbook Pro to be: 2.4GHz 8‑core 9th‑generation Intel Core i9 processor, Turbo Boost up to 5.0GHz However, ...
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1answer
78 views

How to change MacBook's performance back to normal after it was reduced?

Sometimes my MacBook shows a "Performance is reduced" notification after it gets hot from running intensive apps on a hot summer day. When it's left idle for about 30 minutes and becomes cooler, is ...
1
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4answers
313 views

What are my hardware upgrade options for a late 2009 iMac?

It is now July 2019 and I have this Late-2009 iMac. macOS High Sierra Version 10.13.6 iMac (27-inch, Late 2009) Processor: 3.06 GHz Intel Core 2 Duo Memory: 4 GB 1067 MHz DDR3 Graphics: ATI Radeon HD ...
0
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1answer
77 views

Limit mac CPU frequency without disabling Turbo Boost?

Intel mobile CPUs now have a really low base frequency and a high Turbo Boost freq, e.g. i5 2.4~4.1 GHz. Turbo at 3.8+ makes it go all the way up to 100°C. Using 'Turbo Boost Switcher' to disable TB ...
5
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3answers
1k views

With a data transfer of 50 GB estimated 5 hours, are USB-C claimed speeds inaccurate or to blame?

When I bought an 2017 MBP I was under the impression (from Apple and others) that USB-C was the superfast way to transfer data. It has not worked out that way and I am wondering if I misunderstood ...
0
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1answer
208 views

2.7GHz Intel Core i7 vs 2.6GHz 6‑core 9th‑gen Intel Core i7 [closed]

I have a 15" 2016 2.7GHz Intel Core i7 MacBook Pro. It has 16GB 2133 MHz LPDDR3 and a 1TB SSD. I'm considering upgrading to the latest MacBook Pro, which has: 2.6GHz 6‑core 9th‑gen Intel Core i7 ...
1
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1answer
26 views

iPad: Battery usage while using split screen vs single app in foreground

What’s the difference in battery usage for the two situations while running apps on an iPad? Split screen with app X and Y. Only app X or Y in foreground. Since screen usage is same for both, only ...
0
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0answers
9 views

Can the 2019 MBP 13'' i7 16gb support a (flawlessly) 1440p 165hz monitor? [duplicate]

I have a 2019 MBP 13'' with i7 quad 8th and 16gb ram, and I am considering buying a 1440p 165hz Dell to pair with it. This has a displayport port only. I am looking for flawless performance, no ...
1
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1answer
37 views

What could be the cause? I/O completely died. Constant spinning, even logging in takes forever

iMac 5K, late 2014 model. The weirdest thing happened yesterday. This machine is usually very performant — 8GB ram, 3TB Fusion drive. I dual-boot Windows on it using Boot Camp. As of now, I still ...
1
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0answers
26 views

How to optimize Mojave for inside a VM?

This may sound like possible duplicate, however it's not. The focus of the question is very specific to OS version macOS Mojave 10.14, with a very specific goal in mind explained below. The host OS ...
2
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0answers
50 views

2018 MBP Network Throughput decreases over time [duplicate]

Summary I was recently provided with a 2018 MBP by my employer. The network throughput slows gradually until I'm forced to reboot. Setup The following machines are connected via wired ethernet to a ...
0
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0answers
41 views

CPU frequency very low during high disk I/O and more aggressive fan policy

model: MacBook Pro 15-inch 2018 macOS: Mojave 10.14.5 CPU: Intel i7-8850H Recently, I've observed a significant slow-down of the macOS during high disk I/O. Sometimes the CPU frequency would be ...
1
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2answers
314 views

Does running both (XCode & Android Studio) at the same time overload my MacBook Air with only 8 GB of Ram

This IDE is for the Automation Testing Purpose. Along with Appium Server, I need to run the Emulator of Xcode's iOS Emulator and the Android Studio's Emulator. Does this Run smoothly in the 8GB RAM ...
3
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2answers
150 views

iMac 27" 2017 memory upgrade question

I have 16GB of RAM installed on my iMac 27" 5K i7 2017 (2 x 8GB). There are 4 slots in total and I would like to add another 16GB. I don't know if it's best to buy 2 x 8GB or 1 x 16GB?
2
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1answer
150 views

Do the MacBook Pro (15-inch, 2018) have different cooling systems depending on the GPU

I read here that the thermal throttling of the i7 and i9 on the latest MBP (2018, 15-inch) can be significant. I also got information that the cooling system is different when the MBP is upgraded ...
4
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1answer
112 views

Does APFS reduce the needed free space on SSD's?

I've seen recommendations for the minimum amount of free space one should have on an SSD that range from 20%—33%. For instance, this answer (Can MacBook Pro get slower after SSD is almost full?) ...
3
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1answer
413 views

Will upgrading to a 32 GB RAM Macbook Pro significantly speed up Adobe Illustrator?

I use Illustrator to create large, detailed pattern designs. The .AI file size of one of these designs typically exceeds 500MB. When I’m working on a large file like this, Illustrator performance is ...
2
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1answer
256 views

How to decide which is the better browser for me: Google Chrome or Safari? [closed]

Consider that it is often said that... Safari is more battery/CPU efficient. Most people will never run across a web site that runs better on Chrome than on Safari (excluding Google explicit sites). ...
2
votes
2answers
169 views

How to limit kernel_tasks CPU usage?

I would like to limit kernel_task's CPU usage on my computer. I provided cooling for my MacBook Pro, cleaned out the internals, and tried resetting the SMC multiple times. I haven't tried re-...
1
vote
0answers
27 views

macOS Server VPN (L2TP) speeds choking on Mac Pro, but not Macbook Pro

I have a MacOS Server (10.12.6) set up running a VPN server at one location (site A). I have a Mac Pro (10.12.6) and Macbook Pro (10.14.5 beta 3) running at a second location (site B). Both sites have ...
0
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1answer
40 views

Can I check if the cooling system of my Macbook Pro 15" Early 2013 works as intended?

I have this model: MacBook Pro "Core i7" 2.7 15" Early 2013 2.7 GHz Core i7 (I7-3740QM) Intro. February 13, 2013 Disc. October 22, 2013 Order ME665LL/A Model A1398 (EMC 2673) Recently ...
2
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1answer
63 views

Generate and view macOS system performance report

I want to generate a system performance report for my Mac. I would like that this report have CPU, Memory, disk and network activity statistics over a time period. Like, I start the report generation ...
2
votes
1answer
65 views

cpu clock too low / force cpu clock / overclock

I have a MacBook from a few years back. When I use it write some code and browse the internet, the fans go very fast and the noise is horrible. But the temp shows only 70 C. So I used SMC to force ...
0
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1answer
214 views

Which model has better CPU-performance: iMac MMQA2HN/A or Mac mini MRTR2HN/A?

In this comparison the main difference I see is in the processors. https://www.apple.com/in/mac/compare/results/?product1=imac-21&product2=mac-mini Irrespective of other feature differences this ...
3
votes
1answer
2k views

Why are my guests in VirtualBox so slow?

I have Mojave 10.14.3, running VirtualBox 6.0.4 and with Debian 9 (with XFCE) as the guest OS. I have installed the guest additions, no errors. I can verify that the usual vbox modules are running: ...
0
votes
1answer
486 views

How to improve the performance of a Ubuntu Virtual Machine running in VirtualBox?

I'm using VirtualBox 6.0.4 to run a Ubuntu 18.0.4 guest on a MacBook Pro 2018 host with macOS Mojave. The MacBook host has an i7 processor and 16GB of RAM. In addition to VirtualBox, I'm running ...
0
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1answer
36 views

My mac is starting slow. I know login items, CleanMyMac. What else?

My MAC has a slow start-up time (at times, 5s or more before initial black screen with Apple logo). I am aware of login items. I have used CleanMyMac. Is there anything else I should check for? Thank ...
3
votes
1answer
860 views

System slowness: How to disable or short-circuit tccd in Mojave? (slows app & subprocess startup)

There's a serious problem that's come up especially in Mojave and Apple seems to not really be interested in resolving this from my discussions with engineers in the know. It especially manifests ...
3
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2answers
125 views

What are the ways in which installed software can negatively impact OSX speed over time?

Applications installed on macOS are not always completely self-contained. Sometimes they write files in multiple locations outside their .app bundle, taking up space that they sometimes occupy even ...
2
votes
2answers
49 views

How does installing XCode, Visual Studio and Unity on my mac impact my computer's speed?

Most of the time I use my mac computer for graphics design but I enjoy coding too. Since clean-installing macOS a few months ago, I avoided installing XCode, Unity and Visual Studio for fear that with ...
2
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2answers
84 views

Performance comparison iOS 12 / iOS 11?

After I upgraded to iOS 11 on an iPhone 6, I noticed different forms of performance loss: lag to start some applications, interface buttons which seems like on slow motion, virtual keyboard starting ...
1
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0answers
61 views

General computer slow-down while transfering files

I frequently need to transfer files between 10 GB and 1 TB as part of my work, typically between external drives and network servers. Whenever I transfer files, the computer slows down to being ...
1
vote
1answer
16 views

Chances Migration Assistant will improve performance of Air-2011?

I need to improve performance of my Macbook Air mid-2011. I'm considering to re-install MacOS from the scratch using Migration Assistant for that purpose. I recently migrated from original 256GB SSD ...
0
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0answers
86 views

Mojave Terminal lags with color

Last week I bought a 2018 13inch MacBook Air with Retina display running Mojave 10.14.1. I do lots of work on the terminal and have been disappointed to find that the terminal lags severely whenever ...
1
vote
1answer
34 views

How to avoid lags when listening to music on a Mac?

On a Mac 10.13.6 I am usually listening to music using the command line command mplayer. However, when the computer is under rather heavy load, the music sometimes stops for a fraction of a second up ...
7
votes
1answer
465 views

How to limit RAM in an OSX device? [duplicate]

Related to my other question, I'm about to buy a new Mac Mini. I would like to reduce RAM to 8GB in order to see if 8GB is enough to my daily tasks in my MBP retina 15 early 2013 16GB RAM. The idea ...
1
vote
1answer
48 views

Mac Mini mouse icon stutters and sometimes unresponsive

The mouse icon on my Mac Mini (macmini6,2 - 10.14.1) has started stuttering. It's not always, but most often. Sometimes it's so bad the icon won't move at all and I cannot click with my Magic Trackpad ...
2
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0answers
471 views

Speed up FileVault decryption process

There is a reason for me (testing) to turn off FileVault encryption on the boot drive on my Mac running macOS High Sierra (long story, off topic). So, I turned it off in System Preferences. I also ...
1
vote
1answer
48 views

Why does it take so long when I click on the filename in the window title?

When I click on the filename of e.g. TextEdit, to change the file name and select where it is saved, it always take 1-2 seconds until the selector thingy pops up. That has always been like that for ...
2
votes
1answer
306 views

Does an iPhone battery drain faster in cold?

I have an iPhone SE and I have noticed the battery drainage is quicker when outside and in the winter. I have heard some websites and people say that batteries drain faster in cold. Is this true? I ...
0
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1answer
96 views

Can a “normal” user see all processes with htop?

Can I see all processes with "htop" or does it make sense to use "sudo htop" ? I use htop in the terminal (installed via brew / homebrew). My useraccount on the macbook is a default user no special ...