All Questions
Tagged with performance hardware
53 questions
1
vote
2
answers
249
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 ...
0
votes
1
answer
411
views
I have 8 logical cores, so why is the value of machdep.cpu.logical_per_package 16?
I have a MacBook Pro 15-Inch "Core i7" 2.8 Mid-2015, running Catalina 10.15.7 - detailed specs here:
https://everymac.com/systems/apple/macbook_pro/specs/macbook-pro-core-i7-2.8-15-dual-...
1
vote
1
answer
120
views
Writing successful invitation to tender
I use macbook air for work and privately for many years. Every time I use to buy these laptops privately. However, I got recently funds to buy computers for my research group at university. Quite ...
user474455
3
votes
1
answer
26
views
Extremely low system speed [duplicate]
I have a MacBook Pro 13" Early 2015. Recently, my keyboard has broken. It first reported spurious hits, then after a few days nothing, so the computer was usable only with an external keyboard. ...
- 261
0
votes
1
answer
220
views
High memory pressure Catalina Macbook Pro causing freezing?
My Macbook Pro has been running with really high memory recently, I think it might be what's caused the whole system to freeze 2 or 3 times over the last couple of weeks. I'll have a bunch of apps ...
- 111
0
votes
1
answer
342
views
USB hub speed vs actual transfer speed
I've been looking through the specs of my 2014 MacBook Air in order to resolve a certain issue.
The hub speed cought my attention:
BRCM20702 Hub:
Product ID: 0x4500
Vendor ID: 0x0a5c (...
1
vote
0
answers
23
views
2010 Macbook Air Throttling when battery half empty
For some reason, my Macbook Air is throttling and not running at full performance when the battery level is under 40 ish percent. I have iStats Menu and it seems like the CPU is peaking around 140 ...
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 ...
-1
votes
1
answer
102
views
Need help configuring specs for new Mac and my software needs [closed]
I have to buy a new Mac and I have two programs I'm hoping to optimize with the new set up. I know I can ask them in the Apple store but I know there's a lot of smart peeps on here so would love any ...
- 59
10
votes
4
answers
7k
views
How can I tell if all USB-C ports on a 2020 M1 MacBook Pro are the same speed, or if one or more will be faster than others?
I'm doing some heavy copying of files, and wish to do it via the fastest USB-C connection possible.
I tried holding option and clicking on the apple logo on the very top left, then going to System ...
- 5,395
10
votes
3
answers
19k
views
MacBook Pro (16-inch, 2019) thermal issues
A few months ago I got a 16-inch MacBook Pro (A2141) with 32GB ram and Core i9 (I9-9980HK) 2.4 GHz processor.
My problem is that that it overheats very quickly and drop the performance of the CPU to ...
- 225
2
votes
0
answers
992
views
MacBook Pro - High CPU Under Low Workload
I've got the MacBook Pro 16" 2019 (2.3 GHz 8-Core Intel Core i9, AMD Radeon Pro 5500M 4 GB). Since upgrading to macOS Big Sur, I've been experiencing an issue whereby the system will become ...
- 143
0
votes
0
answers
470
views
Macbook Pro 16 inch CPU clock oscillating and graphics lagging
EDIT 3: It's nothing to do with which GPU the system is using. The thing that seems to be triggering the failures is wifi. If I switch wifi off from the Apple menu then the CPU ramping stops, the ...
- 441
2
votes
2
answers
191
views
Ensuring consistency and minimal interference during benchmarking?
I am attempting to measure the performance of a common piece of software on the current line up of 13” and 16" for the purpose of comparison between models.
Analysing the specs “on paper” may not ...
- 5,395
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
63
views
Running Raid0 on MBP 2011
I have a higher end (i7, 2.5ghz, 16gb RAM) 2011 MBP with an older HDD that has been pretty unreliable for the last year or so. I have an unused/unopened 250bg SSD sitting on a shelf and was thinking ...
- 325
0
votes
1
answer
334
views
Wiped my keyboard with a damp cloth and now my macbook pro 2017 keyboard cannot type on the login screen
My macbook pro 2017 was working fine and I decided to wipe it with a damp cloth and now it wont work on the login screen. But I went to recovery mode terminal and all the keys work fine there. I must ...
- 161
0
votes
1
answer
112
views
Understanding Processor specifications
I'm not sure what a CPU-specification like "3 GHz Intel Core i5" really means.
Does it mean that there are five cores with 3 GHz each? Or are there 3 GHz distributed between the five cores?
What ...
- 1,265
3
votes
2
answers
58
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 ...
- 10.1k
1
vote
0
answers
88
views
MacBook Pro randomly hangs after water damage
I had water damage on my MacBook Pro trackpad. After that my mouse cursor started randomly trembling. I turned off the MacBook, washed it with isopropyl alcohol and after that it began to randomly ...
- 11
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
1
vote
1
answer
334
views
PSA: Random freezes/kernel panic on 2013-2015 retina MBP
I've got a Late 2013 15" MBP (A1398) that has been experiencing random freezes/kernel panics for a while now. I was initially unable to pinpoint a cause.
2
votes
1
answer
6k
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 ...
- 121
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
1
answer
950
views
Macbook hangs when removing HDMI cable
I have a very frustrating problem: when I remove the HDMI cable from my MacBook Pro (i.e. to disconnect my external monitor, and move about with the laptop), the screen just refuses to wake up when I ...
- 1,369
3
votes
1
answer
773
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, ...
- 250
5
votes
1
answer
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 ...
- 51
1
vote
1
answer
448
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 ...
- 2,707
0
votes
1
answer
217
views
Intel Mac Pro 1.1 stops responding after ~5 minutes
If anyone could shed a little light on this, I'd be extremely grateful.
I have a 2006 mac pro 1.1 (intel cpu) that consistently stops responding after 4-5 minutes.
The mouse still moves but nothing ...
- 103
0
votes
1
answer
20k
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 ...
- 138
1
vote
1
answer
150
views
diagnose possible issue with MBpro 2012 running very slow
tl;dr Can a MacBook Pro become unbearably slow because of hardware issues, e.g a hard-drive failure? How can I best diagnose this?
I own a MacBook Pro from 2012, which recently has become unbearably ...
- 111
76
votes
5
answers
77k
views
How to monitor and control thermal CPU throttling in OS X?
I recently came across the Intel Extreme Tuning Utility for Windows. I tried it under Bootcamp Windows and it was very interesting to learn in what situations my MacBook Pro's (mid2012) CPU is doing ...
- 7,854
0
votes
1
answer
48
views
Mavericks 10.9.5 / MBP 17 2011 - system intermittently hangs when a USB mouse is plugged in
This has happened to me a number of times (6-10). I am not sure of the specific circumstances because it is not easily replicated.
I usually only use the trackpad, because I am just typing. But ...
- 1,152
2
votes
1
answer
110
views
What programs actually use the memory on a Graphics card?
I noticed that the Graphics Card memory is hardly used at all, even during Cinebench 3D testing despite the FPS being high. What programs actually use the graphics card memory?
Trying to determine if ...
- 899
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
3
votes
2
answers
9k
views
Will a 1.8GHz MacBook Air be much faster than a 1.3GHz model?
I am looking to purchase a refurbished Macbook Air from Apple's refurbished store.
When comparing the models there are two I am looking at. The difference between the two is slight but one of the ...
- 345
1
vote
0
answers
512
views
How is swap on mid-2013 MacBook Air w/ PCIe SSD?
There appears to be confusing and incomplete information about the PCIe SSDs in mid-2013 MacBook Air 11" and 13" (especially the 128GB models), where a different queue depth may result in different ...
- 1,038
1
vote
2
answers
7k
views
How fast is 256GB to 128GB on mid-2013 MacBook Air?
I've tried finding the comparison reviews of the performance differences between 128GB and 256GB PCIe SSDs of mid-2013 MacBook Air 11" and 13" (which now have been carried over as the early-to-mid-...
- 1,038
20
votes
5
answers
86k
views
Boot hangs on grey screen (even when booting from USB drive with fresh OS X install)
My MacBook Pro 15" Late 2011 (MacBookPro8,2) with AMD Radeon 6770M exhibited display corruption and associated system crashes/resets over a period of two weeks before it entirely failed to boot. The ...
- 201
10
votes
7
answers
63k
views
How to diagnose repeated OS X hang / spinning beach ball of death?
Here are my stats and brief summary of the problem:
macbook pro; mid 2009; 13 inch; 2.26 GHz; 4GB RAM (currently, will elaborate); 10.7.5
The issue I'm having is that the computer constantly gets ...
- 101
1
vote
2
answers
600
views
2010 Mac Pro beachballing/freezing
My machine is a 2010 Mac Pro 2 x 2.66 6-core intel xeon with 32 GBs of ram running Mac OS X 10.8.3. Just the other day it started to beach ball after about an hour of use. It doesn't make any ...
- 1,381
1
vote
0
answers
1k
views
27" 2009 iMac screen occasionally freezes (mouse still moves) after upgrading RAM and SSD
I have a 2009 iMac that has been working fine (but slowly) until now. I decided to upgrade the hard drive to a 500 GB Intel SSD (MZ-7TD500BW) and put in 16 GB of RAM (PNY Optima PC3-8500). I've ...
- 233
0
votes
1
answer
328
views
Can software cause the home button to stop working on iOS?
I have a new (2 months) iPhone 5 and it just froze in the "settings" app. Everything on the phone is controlled with the round button at the bottom, when I press it nothing happens anymore.
Can this ...
- 1
0
votes
1
answer
2k
views
My macbook pro hard drive seems to be corrupted, should I replace it?
I have a 2,26GHz mid-2009 macbook pro with 8Gb Ram and mountain lion (mac os x 10.8.2). Recently my computer doesn' t stop freezing and I have to force the computer to shut down. Then I ...
- 201
3
votes
3
answers
28k
views
MacBook freezes with three beeps
My Feb-2011 MacBook Pro hangs with three beeps.
I noted the first strange thing a few days ago. The MacBook was in standby (as always) but very hot (not usual). I thought some process must have ...
- 726
1
vote
2
answers
21k
views
How to run a performance benchmark on my MacBook Pro?
I need to run some sort of performance benchmark to measure how slow my MacBook Pro is (and why)—a 15" MacBook Pro (late 2008) with a 2.4 GHz Intel Core 2 Duo processor, 4 GB of DDR3 memory, and ...
- 945
2
votes
1
answer
559
views
Faulty 2006 iMac - what is it useful for?
I own a 2006 iMac, which, alas, has a known manufacturing fault. Because of the poorly-designed cooling system, the graphics card (soldered to the motherboard) has become defective and the system ...
- 29
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 ...
2
votes
2
answers
186
views
How to decide on a new Hard drive for macbook pro [closed]
I have been using my Macbook Pro for about 5 years, it was the first model with the Intel chip. The 100GB hard drive is starting to go and I'm ready to replace it. I went over to Cnet to see what ...
- 143
1
vote
2
answers
1k
views
Bootcamp - Multiple Windows installations, how do delete one?
I've got a Mac Pro with 3 hard drives:
1 x 7200rpm 640GB - 1/2 for OS X - 1/2 for Windows 7 (Bootcamp)
2 x 5400 Western Digital'Eco-drive' (runs like a dog and is only useful for backups and archives)...
- 566