All Questions
Tagged with performance temperature
37 questions
1
vote
0
answers
84
views
kernel_task slowing down on Intel-based MacBook Pro
I have a 2020 MacBook Pro 16", the last of the Intel based Macs. Just in the last couple of weeks it has been slowing down due the kernel_task process going up to 1000% CPU usage.
I have done a ...
- 111
1
vote
2
answers
248
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
253
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
2
votes
1
answer
1k
views
Throttle CPU to reduce fan usage on MBP
I am using an MBP (late '19, 8-Core i9, macOS 12.5). On medium and heavy usage, the fans kick in, as expected. However, I sometimes want to use the MBP casually and would be willing to throttle down ...
- 23
1
vote
1
answer
1k
views
Should my CPU load be that high?
I have a mid-2009 13" core 2 Duo MacBook Pro running High Sierra w/ upgraded 8 Gb RAM.
On Activity Monitor I usually get 20-40% 'idle CPU' with only Finder, Safari (3 tabs) and Activity Monitor ...
- 31
5
votes
1
answer
2k
views
Mac Mini's fan is not speeding up when it's under pressure
I have a Mac Mini 2020 with M1 chip. Fan is always working around 1700 rpm no matter the CPU temperature. Even if CPU temperature is 80 degree celsius, it works at the same speed as if it was only ...
- 261
1
vote
1
answer
2k
views
High kernel_task CPU usage problem
I have an old MacBook Air 13" from 2013. It has been working flawlessly up to maybe 6 months ago, where it started being insanely slow. I have identified the cause to be the dreaded kernel_task, ...
2
votes
2
answers
866
views
Mac mini fan never surpasses 7%, even while stress testing
I have a 2014 Mac mini with an Intel Core i5 processor. I noticed that no matter how much I used it, the fans barely ramped up. Using iStat Menus I noticed that it would usually stay around its base ...
- 9,234
0
votes
1
answer
448
views
Thermal throttling after Big Sur update
My 2015 i7 MacBookPro started to thermal throttle after the update to Big Sur:
in previous system, the Mac went up to 90°C degrees before slowing down. And it would not thermal throttle at all. The ...
user418915
1
vote
1
answer
1k
views
MacBook Pro 16 inch thermal throttling even when temperatures are low
Sometimes when I start to use MacBook its cpu speed limit stays at 20% despite the low temperature. I use the app "HOT" to monitor it. Sometimes even when temperature is 60 Celsius cpu ...
4
votes
1
answer
858
views
MBP 16 becomes slow after a while when connected to external monitor
I've noticed recently that my 2019 MBP 16' (running latest version of Big Sur) becomes very slow and sluggish after being connected to an external monitor for a certain amount of time (the time varies,...
- 291
0
votes
1
answer
731
views
MBP 16" i9 (Late 2019) Possibly Overheating [duplicate]
I just got a 2019 MBP 16" Model with 2.3 GHz i9 (turbo to 4.8GHz). When running simulations in MATLAB I have noticed the fans to spin quite loudly, and the CPU temp is rising very high. I have ...
2
votes
2
answers
2k
views
Severe GPU throttling freezes 2019 MBP16 after 30 minutes of Civilization VI
My brand new 2019 Macbook Pro 16" (macOS v10.15.7) suffers from severe GPU throttling after 30 minutes of playing Civilization 6. The freeze causes visual GPU artifacts that extend beyond the ...
- 223
2
votes
2
answers
1k
views
Seemingly random CPU throttling
My 2018 macbook pro with i9 processor running Catalina version 10.15.6 seems to randomly throttle the CPU frequency even with low CPU utilization and lowish temperatures:
I am using a docking station ...
1
vote
0
answers
92
views
2017 MBP has started to degrade in performance - dreaded kernel_task
All -
My normally stable mbp 2017 has started slowing down with kernel_thread dominating the CPU in recent weeks. This condition persists across reboots. My primary concern is that the machine is ...
- 51
6
votes
1
answer
3k
views
2019 MBP 16" 2.3Ghz i9 severe thermal throttling (Catalina 10.15.5)
Brief Summary
2019 MBP 16" 2.3Ghz i9 shows severe thermal throttling
CPU Frequency hovers around 1.9-2.0 Ghz
Power draw doesn't exceed 30W
Max Temperature only 76ish degrees Celcius
Exporting a ...
- 61
0
votes
1
answer
948
views
iMac 2019 fans rather loud (and at 2850rpm) when only 30% CPU - is this normal?
Situation:
new iMac
model retina 21.5-inch 2019, 3.2GhZ 6-core intel Core i7
I can not hear fans at all during normal non-cpu intensive operation (web browsing, etc.). They are at 1200 rpm. This is ...
- 1,134
0
votes
1
answer
277
views
A1398 2015 - inadequate fan behaviour/noise
I'm toasted. My long-awaited purchase disappoints me extremely.
I'm a quietness-freak. One of the main reasons to get Macbook Pro 15" 2.8, R9 M370X was Apple's tendency to keep hardware hot but quiet,...
- 11
0
votes
1
answer
260
views
mid-2015 MBP, 16GB, upgraded from 2.5 to 2.8 model. Benchmarks are almost the same, even worse for the 2.8 in some tests
Any thoughts on why this would be? I migrated everything at power-on on the new mac after formatting its Samsung EVO 970 plus, so they have identical drive contents and OS. Also, the 2.8 gets hot ...
- 261
1
vote
1
answer
898
views
MBP fan running but no airflow
I have a 2014 MBP, running very well but for one issue: the fan doesn't seem to move any air around, even though I can hear it running. As a result, the laptop gets quite warm, and further, it seems ...
- 111
0
votes
1
answer
1k
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 ...
- 9,686
2
votes
1
answer
415
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 ...
- 1,413
0
votes
1
answer
305
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 ...
- 121
2
votes
1
answer
361
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 ...
- 121
3
votes
1
answer
3k
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 ...
user310476
1
vote
1
answer
848
views
CPU speed of the Macbook Pro Retina downclocked
I've a MacBook Pro 15" late 2013. For a long time I have encoded videos with handbrake and the CPU was very hot for hours. The clock speed was about 2.8GHz (I have the 2.3GHz model) and the ...
- 111
6
votes
1
answer
2k
views
MacBook Pro 15" 2015 CPU throttles down to 0.8 GHz
My MPB has had this problem for years every time the ambient temperature gets a bit warmer. It starts in the spring and gets ridiculous during the summer.
The MBP clocks down its processor to 0.8 GHz,...
- 161
1
vote
0
answers
875
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 ...
22
votes
4
answers
1k
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 ...
- 221
2
votes
2
answers
3k
views
CPU throttled to 0.8GHz due to "GPU LIMIT PROCHOT"
Suddenly my iMac (late 2013) started to throttle CPU to 0.80GHz, everything becomes super sluggish. It happens ~5-10 min after a fresh reboot, sometimes it goes back to full speed for short periods, ...
- 21
0
votes
1
answer
25
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 ...
- 669
4
votes
3
answers
13k
views
High CPU and energy usage in Safari
Energy impact of Safari is extremely high on my Macbook Air Mid 2013 El Captian 10.11.2. It lead to high usage of CPU (Temperature ~65.0°C) and the CPU fan is running in full speed (6500.0 RPM) ...
- 203
2
votes
1
answer
153
views
Fan for MacBook Air?
Macbook Air gets hot near its processor and gets sluggish for a while, whenever I make "heavy" tasks at the same time. I wonder if a fan under its base would make any difference since mac has no ...
- 335
0
votes
1
answer
930
views
Macbook Pro 2012 md101 gpu throttling
When playing games on Macbook Pro 13 inch 2012 md101 under Windows 8.1 the temperature rises to 100 degrees pretty fast and gpu starts throttling giving a huge slowdown in games. Is this a normal ...
- 421
16
votes
3
answers
43k
views
Monitor GPU performance on OSX
Is there an application or tool that can monitor GPU performance on OS X? Specifically I would like to see the current speed/utilization and temperature of the integrated NVIDIA chip.
For Windows, ...
- 1,148
0
votes
1
answer
763
views
Macbook Pro just started overheating and losing frame rate
It's strange because I've had Diablo III for a couple weeks now and I've been able to play it just fine without any performance problems. Starting today though, I've experienced some serious ...
3
votes
2
answers
2k
views
OSX able to throttle down CPU on heavy usage?
I have a company macbook with a 4 core 2,8Ghz i7 (to much power for a "laptop" if you ask me, whatever). Sadly the cooler seems not to be able to handle 100% cpu usage. Sometimes filevault stresses ...
- 133