Questions tagged [performance]
Questions dealing with performance of Apple hardware or software, especially about troubleshooting or improving poor performance.
1,538
questions
2
votes
1
answer
109
views
How to debug slow harddrive read/write speed on Mac?
I have been using multiple units of WD 5TB external hard drive with my macOS 10.13.6 on a 2018 MacBook Pro 15-inch.
I realised that it is almost always the case that read/write speeds drop when the ...
- 365
0
votes
1
answer
37
views
Time Machine backups intermittently taking way too long (none of the old answers apply)
I've long been amazed how fast time machine backups can be these days (well, years); even for really gigs of data. But recently sometimes my backups take forever. It seems to be independent of how ...
- 127
0
votes
0
answers
20
views
Macbook freezing
My MacBook Air (2014) keeps freezing shortly after boot. When it was off a day or so I might be able to use it for 10-15 minutes. After a few boots however the time gets shorter and it might not even ...
- 592
0
votes
1
answer
49
views
Can the Processor in the Apple Watch Ultra Beat an Old Pentium 4 CPU in Terms of Raw Performance?
I was staring at my watch and remembered an old Pentium 4 PC I had as a kid. This got me thinking, does my watch have more compute power than that PC did? I'm leaning towards a hard yes, but it's ...
- 11
1
vote
2
answers
138
views
Finder suddenly very slow
Suddenly all the Finder actions become very slow, while using other apps like Chrome is very fast. When moving files to different folders, I always get a "preparing to move to" pop-up, ...
- 31
0
votes
1
answer
25
views
High opendirectoryd CPU usage caused by Qustodio- Any Fix?
I have an 14" M1 Max that gets very poor battery life, which I suspect is mainly due to the installed internet filter, Qustodio, causing high CPU usage from opendirectoryd. As per activity ...
- 121
2
votes
1
answer
308
views
Difference between Apple Pro M2, M2 and M1 using Stable Diffusion
I am benchmarking Stable Diffusion on MacBook Pro M2, MacBook Air M2 and MacBook Air M1.
My assumption is the ml-stable-diffusion project may only use CPU cores to convert a Stable Diffusion Model ...
- 121
0
votes
1
answer
224
views
contactsd using over 50% CPU on my MacBook Air
I wanted to get some information with regards to the contactsd process on my MacBook Air. I often find it using over 50% of my CPU and I would like to know about it and how to disable its excessive ...
0
votes
1
answer
42
views
How does Apple's ProMotion display technology affect visual performance?
I switched from a 16 inch M1 MacBook Pro to a 15 inch M2 MacBook Air and realized the Air lacks ProMotion. After comparing tasks like scrolling in (native) apps, or panning and zooming in Figma, I don'...
- 1,619
0
votes
1
answer
69
views
Is there any performance difference between Macbook Air and Mac Mini?
I want an Apple computer but cannot decide between Mac Mini and Macbook Air. I prefer the Mini more, and I own a Logitech Keyboard and mouse and an LG Monitor, so those things are already taken care ...
- 103
0
votes
0
answers
28
views
I am trying solve "Performance limited due to" issues from powermetrics
My MacBook sometimes crashes. I think this is due to the battery overheating even though I've just changed the battery to a new one and had my Mac cleaned. This is what I get when I type sudo ...
1
vote
1
answer
54
views
How can I configure my iPhone so that applications in the background aren’t getting network throttled by iOS?
iOS sometimes limits the internet speed of applications in the background.
How can I configure my iPhone so that applications in the background aren’t getting network throttled by iOS?
- 3,456
1
vote
1
answer
203
views
Should I install High Sierra in external SSD in iMac 2017 model for good performance or I can install latest version as well?
I have an iMac 2017 version with HDD and no fusion drive. HDD has slowed down so I am planning to use an external SSD. In my earlier question a generous user told me that in my model of iMac High ...
- 123
0
votes
0
answers
59
views
Bizarre Sudden Slow-Down of Specific MacOS Processes
I purchased a 2020 M1 13" MacBook Pro in March 2021 and it's been like driving a racing car. I use it for everything, and I do a lot as I'm a post-graduate researcher in Electrical Engineering. ...
- 1
2
votes
1
answer
99
views
Can an application leave some files behind after it is uninstalled on iOS, and can it slow down or harm the OS in other ways after it is uninstalled?
I wonder the following questions about uninstalling iOS applications:
Can an application leave some files behind after it is uninstalled?
Can an application slow down or harm the OS in other ways ...
- 3,456
0
votes
3
answers
87
views
Ethernet USB adapter discard settings
I use Mac Mini Apple M1 2020 with macOS 13.4.1.
I have new 1Gbps internet provider and i tried to test speed. My result is only 100Mbps.
In my Mikrotik router:
name: ether1 ...
- 11
1
vote
0
answers
18
views
How to benchmark a performance core on an M1/M2 Pro [duplicate]
I'm running some compiler tests and I noticed that as I ran more iterations per run, the average time increased and the standard deviation increased (which should have decreased as random variations ...
- 111
1
vote
2
answers
119
views
kernel_task shutting down network when CPU not overheating
[MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports), 2.3 GHz Quad-Core Intel Core i7, 16 GB RAM, running Monterey 12.6.4]
kernel_task consumes inordinate CPU periodically--around 100+% according to ...
1
vote
0
answers
33
views
MacBook Air freezes when disconnected from ASUS monitor
MacBook Air M2, Ventura 13.5. When I disconnect (unplug from) ASUS external monitor, my laptop becomes non-operational; neither keyboard nor trackpad respond.
I have to shutdown while connected to ...
- 11
0
votes
2
answers
141
views
Mac Mini 2018 sudden unexplained performance issues
I have a 2018 Mac Mini i7 with 32gb Ram. I have been having strange performance issues lately. I decided to reinstall the OS but it's still happening. I think I noticed the problems initially when I ...
- 933
1
vote
0
answers
71
views
MacBook Pro 16 2019 i7 - CPU throttling
My MacBook Pro starts to throttle its CPU to 0.8 - 1GHz over time, even when watching 2k youtube videos, which of course is not a normal behaviour.
Here are some details about my issue. First, pmset:
...
- 111
0
votes
0
answers
24
views
Firefox slow to restore windows on external 4k monitor
When I log in after my MacBook goes to sleep, Firefox is taking a long time to restore windows on an external 5k display (with a different DPI than the built-in display):
first, windows are restored ...
- 482
0
votes
0
answers
21
views
Messages freezes my MacBook Air and requires me to re-login
Longtime follower of this remarkable community, first time asking a question because so many questions are already answered.
Long story short, this has been happening only lately, like the past two ...
- 1
0
votes
0
answers
88
views
syspolicyd uses a lot of CPU on a machine that runs a "self compiled" command line process that takes a lot of CPU
I run a bash script that feeds a C++ binary (downloaded from Github and compiled locally) with thousands of files. This C++ binary is extremely CPU-heavy. For performance reasons I run six parallel ...
- 3,268
1
vote
1
answer
22
views
How to prevent switching app or locking screen from terminating current WhatsApp working task?
The problem is like this:
When I open Whatsapp
Select an attachment in a conversation
Forward this attachment using "Share" button sharing to Google Drive app
Select the destination
Waiting ...
- 131
0
votes
0
answers
71
views
How can I disable CPU throttling on MacBook pro 15 mid 2012 retina with new battery but died SMC?
MacBook Pro 15 mid-2012 Retina a1398
Mac OS Catalina 10.15.7
I have died SMC in my MBP with a new battery (I think it will solve problem of invisible battery for system), frequency of my i7 3635QM is ...
- 1
0
votes
0
answers
261
views
OpenCL on Ventura/how to speed up whisper.cpp on an Intel-Mac with Radeon GPU?
I use whisper.cpp a lot and recent updates has added support for OpenCL using CLBlast, https://github.com/ggerganov/whisper.cpp#opencl-gpu-support-via-clblast but according to https://discussions....
- 3,268
0
votes
1
answer
793
views
fileproviderd and rtcreportingd spiking cpu
could use some advice from experts. For awhile now, the fileproviderd and rtcreportingd processes are both spiking on my 2017 macbook pro. I'm on Ventura 13.3.1 (a).
I've done some investigation, and ...
- 101
0
votes
1
answer
156
views
iMac 10.15 Catalina takes 2+ hours to boot
One of the 12 iMacs here has a big problem: it takes two hours or more from pressing the button to turn it on until finally ditching the progress bar and showing up the desktop.
It is a MacOS 10.15 ...
3
votes
2
answers
265
views
Which logs and command line tools for finding processes that hog the macOS CPU?
As you can see, I have frequent CPU hogs:
I inspected my mac with several security tools from https://objective-see.org/tools.html, if any viruses or shady processes are being started up or running ...
- 163
0
votes
2
answers
104
views
Does anyone else have lots of duplicate man pages?
For example, for the read man page, I have a single one for read(2), two of the same for read(1) and two of the same for read(n). This has led to some performance and timing issues. I believe it has ...
- 161
3
votes
1
answer
796
views
Limit how much GPU an app gets to use
How can I set a hard cap on how much of the GPU an app is allowed to use?
Like AppPolice, but for GPU, and preferably not a third-party program but please recommend me those anyway (I couldn't find ...
- 8,602
1
vote
1
answer
54
views
MacBook13,3 extremely slow suddenly
My old 2016 MacBook Pro is extremely slow all of the sudden, starting a program like finder can take several minutes, every click on a button will have the UI freeze for a few seconds, installing a ...
- 111
2
votes
3
answers
66
views
macOS doesn't open apps but doesn't hang either
Edit: Here is an EtreCheck report
Since this week, my Mac has sometimes gone into a weird state where I can do all of the following things:
Type into text fields
Open new Chrome tabs
Switch Windows
...
- 233
1
vote
0
answers
21
views
Can the performance of MacOS Extend Display between Macs be improved by cable connection?
I have a M1 Mac Studio from which I "Extend Display" to a 16" M1 MacBook Pro, via the setting "Use As Separate Display". The connection happens over Wi-Fi, and the wireless ...
- 9,474
4
votes
0
answers
363
views
How to debug a freezing dtrace on Ventura
I'm trying to use dtrace on a very new system: Ventura 13.2.1, MBP M2.
Any attempt to run it ends up with the terminal and most of macos system gui freezing. (beachballing, I can switch the apps, but ...
- 171
2
votes
2
answers
287
views
Do different HDMI dongles give different CPU usage on an Intel MBP?
My Intel (2019) MBP shows severe CPU usage when connecting to monitor(s) via a Dell D6000 Docking Station. It is OK if there are two regular monitors (1920x1200 resolution), but if I connect to a ...
- 578
0
votes
0
answers
58
views
What can be done to make programs startup faster?
I bought a new MacBook Air with an M1 chip.
When I launch programs, they don't launch immediately. First, the icon bounces for a few seconds, and only after that, I can see the program window.
I found ...
0
votes
0
answers
29
views
System freezes for a few seconds after waken up
I have a 2017 Macbook Air (Monterrey). My old system was very cluttered so I reset it. After the first few days I never realized anything odd but when my holidays were over I realized that every time ...
- 11
3
votes
1
answer
1k
views
Virtualbox more than twice as slow on Ventura
I have a virtualbox setup I was using on catalina. I finally got around to reinstalling the machine and updating to Ventura.
The test suite (running in an Ubuntu vm) has gone from 26 minutes to over ...
- 161
0
votes
0
answers
123
views
Random system freeze with kernel_task using 100% of one CPU core, how to diagnose?
For a couple days I’ve been having random hangs from macOS. It seems to happen quite often when opening PDF files stored in Zotero with an external reader (PDF Expert) but it is not limited to that—...
- 242
0
votes
1
answer
73
views
Safari Develop menu not responding
I've enabled Develop menu but when I click it, it takes around 1.5 minutes to open.
This behavior was not happening at the beginning but started after a while, presumably around the time I inspected ...
- 111
0
votes
0
answers
124
views
Python script hangs on importing rasterio
I'm a recent migrant from Linux to OSX, and the transition so far has been quite smooth, until this particular issue.
On a MacBook Pro with the M1 chip, running Ventura 13.1, and with both Python 3.9 ...
- 101
0
votes
1
answer
52
views
iMac main/admin account won't log in (iMac mid 2011, High Sierra)
So I'm at a loss with my Imac which suddenly wouldn't log in and I really really don't want to lose all the information I have on there. I've tried to be as detailed as possible but might have ...
1
vote
0
answers
39
views
How do I stick a graphic to a frozen header column in Apple Numbers?
I want to paste a graphic on a frozen header column, and have it frozen to the header column when I scroll the rest of the table.
But when I paste the graphic over the frozen header column and scroll ...
- 579
2
votes
1
answer
93
views
CPU spikes due to power management?
I have a late 2013 6-cpu Mac Pro running Big Sur. Within the past month or so, I'm getting cpu spikes lasting 5-10 minutes. Activity monitor shows kernel task consuming >800% CPU.
I ran spindump ...
- 21
1
vote
2
answers
569
views
Using wired LAN and need to use AirDrop
I've got an iMac and I use the wired LAN (Ethernet) port.
I also want to use Airdrop, which requires WiFi.
Is there a way I can configure the network settings to use wired LAN for all traffic apart ...
- 3,865
1
vote
0
answers
25
views
macBook is running at 1000% CPU [duplicate]
I have a 2019 MacBook that is running kerneld at 1000% CPU (yes 1000%) no matter if I boot the OS or even into Recovery Mode. However, when I boot into Recovery Mode with Command R I can also hear ...
- 121
2
votes
1
answer
398
views
MacBook Pro (M1 Pro) freezes for a while after login
I'm experiencing the following situation when booting my MacBook with MacOS Ventura 13.1.
I turn on the Macbook.
I successfully enter my user/password.
The OS starts loading but the progress bar ...
- 81
0
votes
0
answers
18
views
External USB stick freezes every app that talks to it
OS X 10.10 Yosemite both systems. The USB stick is HP (Hewlett-Packard) x900w so it's not trash.
I have an external USB stick that was malfunctioning on another system. I brought it to my own system, ...
