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Does the new M4 Pro chip support USB 3.2 Gen 2x2 standard?

Do the new M4 Pro Mac Mini and M4 Pro Macbook Pro, which now have Thunderbolt 5 ports, support the USB 3.2 Gen 2x2 standard? USB 3.2 Gen 2x2 supports transfer speeds up to ~2,000 MB/s for SSDs, but ...
Saharsh's user avatar
  • 409
1 vote
0 answers
64 views

APFS filesystem performance is very poor

I am curious why the performance of my logging routines (using O_APPEND) are so poor on MacOS, and did some testing. The performance is quite bad. Is this a known problem with APFS? These tests are ...
Brad Lanam's user avatar
2 votes
1 answer
91 views

Why isn't Mojave using swap despite high memory pressure?

I regularly receive the "your system has run out of application memory" alert, then the dialog box pops up to quickly kill any offending application before the OS crashes. However, unlike ...
P. N.'s user avatar
  • 91
1 vote
2 answers
471 views

Swap memory usage with 64GB RAM installed

Newbie to macOS and I was wondering if it's normal to have swap usage when the system has more than 6 times of available RAM than being used. I have 64GB of RAM installed and the most memory I've seen ...
NewbieFromNJ's user avatar
1 vote
1 answer
294 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 ...
manish's user avatar
  • 123
0 votes
1 answer
4k views

How can I confirm my fusion drive is working?

My iMac suffered a hard drive crash a couple years ago and I was forced to reformat the drive and reinstall from scratch. Performance has been terrible ever since. It might be because the SSD never ...
Edward Falk's user avatar
  • 1,073
2 votes
0 answers
734 views

Slow performance of MacBook Air 2017

I am using MacBook Air (MBA) 2017 model. Everything was very fine till 8th Aug 2022. Suddenly, my MBA started to perform very slow. Everything is working, but performance is soo slow that it is ...
Neeraj's user avatar
  • 71
1 vote
0 answers
56 views

MacBook Retina Mid-2012 Mojave 3500RPM Fans on Idle

I am having some issues with a Macbook Pro Retina Mid-2012, Running Mojave due to needing 32-bit support for a variety of applications. First off, It is running an Original Samsung 768GB Apple SSD, ...
Nigel McLeod's user avatar
1 vote
2 answers
1k views

apfs speed of mac mini m1 256GB?

I have the M1 mac mini with a 256GB ssd. It is not a fresh disk---I now have only about 30GB remaining. I am not interested in synthetic raw disk performance, but in performance on the APFS file ...
ivo Welch's user avatar
  • 206
0 votes
0 answers
790 views

My apple internal SSD has become extremely slow

I have a 2017 13" MacBook Pro with a Apple 500gb SSD, model APPLE SSD AP0512J. I have noticed over the last year that my machine has become more and more frustrating to use - everything just ...
Dev's user avatar
  • 21
0 votes
2 answers
220 views

Performance has been decreased significantly after connecting via HDMI (M1)

Currently, I have some sort of performance issue with my MacBook Pro late 2020 (M1, 256, 8). I inserted not the original (very cheap) multiport adapter into the machine and connected it via an HDMI ...
Sergey Kolesnik's user avatar
1 vote
1 answer
289 views

How to improve Catalina/Big Sur and USB SSD transfer speed

Recently I bought SanDisk Extreme Pro Portable SSD. It is advertised as delivering almost 2GB/s read and and write speeds. Of course, such speeds are only achievable with compatible hardware. I have ...
Paul Vetrov's user avatar
2 votes
0 answers
2k views

Varying performance with M1 MacBook Pro 512GB SSD

As I look around the web, I see the M1 MacBook Pro with 512GB SSD seems to attain 2800-2900MBps read/write speeds in BlackMagic disk speed test. On my machine, after a number of days and trials, I ...
Woodstock's user avatar
  • 1,306
1 vote
1 answer
781 views

slow boot (and slow EFI?) in brand new MacBook Pro 16"

I have a very new Mac and it seems far too slow to boot in both Catalina and now Big Sur perhaps it’s worse. Device : MacBook Pro 16 inch (MBP 16.0) CPU 2.3 8 Core intel i9 16GB DDR GPU Intel UHD ...
Kevin's user avatar
  • 2,438
1 vote
1 answer
26 views

What is the most efficient order to install Mac OS with Boot Camp and large application suites?

I’ve been using Macs for a long time. In the past to optimize performance and save wear and tear on the disks it was recommended that when building a Mac OS image you should install the OS followed by ...
Marlon D.'s user avatar
  • 121
0 votes
1 answer
164 views

Best surgical way to archive, wipe and clean install Catalina on a 2017 MacBook Pro

Long story short. My MacBookPro has become bloated with files that I either can't trace back to originals or have no real memory of three years later. It’s got a 2tb SSD and i am constantly running ...
Tater FTL's user avatar
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 ...
Daveh0's user avatar
  • 325
2 votes
8 answers
25k 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 ...
Řídící's user avatar
4 votes
1 answer
548 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?) ...
theorist's user avatar
  • 815
1 vote
1 answer
339 views

internal SSD crash. macbook retina early 2016. Mac OS X el capitan

My macbook crashed after an ongoing update. I get the "?" file when rebooting it. After several test i decided to reformat my SSD as it was impossible to install a new version of mac OS X on it. At ...
paul karpat's user avatar
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.
Gregorio Litenstein's user avatar
2 votes
0 answers
3k views

Mid 2015 retina MacBook Pro: Startup slow after SSD Upgrade

I've recently upgraded my Mid 2015 retina MacBook Pro's original 500 GB SSD to a 2 TB Samsung EVO 970 NVMe M.2 coupled with a recent model Sintech SSD adaptor. I am running macOS High Sierra 10.13.6. ...
Vaultnaemsae's user avatar
2 votes
1 answer
744 views

How to diagnose slow file transfer performance?

I just bought a brand new MacBook Pro and am transferring files from a brand new external SSD hard drive. Performance is much lower than I expected. The picture is showing ~44 MBps, which has been on ...
William Entriken's user avatar
1 vote
0 answers
459 views

iMac hard freezes intermittently after booting off an external SSD

I have hooked up an external USB3 Samsung T5 SSD to my iMac model iMac14,2, formatted it as APFS, and installed macOS High Sierra on it, to use as my primary system drive. I can use the system for a ...
AlexMax's user avatar
  • 111
6 votes
1 answer
850 views

No Reboot on MacPro using a new Samsung 860 EVO SSD

From the standard hard disk I can start, restart, and shutdown with no issues. From the new Samsung EVO 860 I can start and shutdown, but I can NOT restart. It freezes with a black screen. If I remove ...
Myndex's user avatar
  • 169
2 votes
1 answer
966 views

Apple Samsung 512 GB SSUBX SSD: Half as fast in MacBook Pro 15" 2015 than in MBPR 13" 2014?

I have an Apple Samsung 256 GB SSUBX SSD which when installed in a 13" MacBook Pro Retina 2014 delivers 1,300-1,450 MB/s Read-Write, whereas when installed in newer 15" MacBook Pro Retina 2015 only ...
Dr. Woo's user avatar
  • 935
1 vote
2 answers
2k views

Why my 2009 macbook pro is faster than my 2017 retina iMac?

A couple of years ago I bought a used macbook pro from a friend of mine, I knew it was a good deal cause the mbp was modified and had very good response and performance, the specs of this mbp are the ...
Karlo A. López's user avatar
1 vote
1 answer
1k views

Beachballing causing Macbook Pro to freeze, with possibly failing SSD

I have a Macbook Pro Retina 15" Late 2013 model (out of Apple Care protection) running Sierra v10.12.6 and it has never frozed up for me until 2 days back, when I was just browsing some pictures via ...
Ashfame's user avatar
  • 265
5 votes
2 answers
4k views

MacBook Pro 2017 SSD write speed slow [closed]

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 ...
Dang Nguyen's user avatar
1 vote
1 answer
1k 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 ...
Joseph Ghaleb's user avatar
1 vote
1 answer
652 views

2013 iMac 27" SSD Failure, Power Supply or Both?

I have a late 2013 27" iMac i7, 8GB RAM, 500GB SSD, running the laster version of Sierra 10.12.4 (I think) Two days ago I suddenly got the spinning beachball while browsing in Safari. However, after a ...
GordonB's user avatar
  • 11
2 votes
0 answers
746 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 ...
Oion Akif's user avatar
  • 9,234
1 vote
0 answers
188 views

Why does macOS Sierra freeze after installation?

I've bought a new Macbook Pro 13" 1 TB early 2015. I started it and during the setup procedure I attached my old 2012 MacBook Pro to migrate my data. Everything went as expected, after the process was ...
Zme's user avatar
  • 11
1 vote
2 answers
357 views

internal SSD and HDD together speed

Hi I was thinking about adding an SSD drive inside my iMac mid 2011. I found that you can have both two drives in the iMac as long as you remove the dvd drive. I want to color correct a short film. ...
user avatar
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 ...
Christos Hayward's user avatar
1 vote
1 answer
177 views

Why is this stock iMac so slow at launching apps?

I bought a refurb iMac from apple.com: 21.5", late 2013 2.9 GHz Core i5 8 GB DDR3 Geforce GT 750M 1024 MB 1 TB SATA Disk No SSD, but this should still be performing well for basic tasks. It's ...
Charlie Schliesser's user avatar
2 votes
1 answer
926 views

MacBook Pro mid 2012 13.3 HDD cable performance

I am helping a friend to fix her MacBook Pro 13.3 performance problems. It was barely booting, and terribly slow for disk seeks. Then I replaced the HDD. It was perfect with new SSD and El Capitan ...
yet's user avatar
  • 183
-1 votes
2 answers
867 views

When Mac OS freezes is it ok to hard shutdown?

I have a MacBook Pro Retina, so it has an SSD but no HDD. I use Dr. Cleaner and I've often noticed that when 99% of the app memory is being used, the OS X El Capitan freezes. At this point of time, ...
Airdish's user avatar
  • 101
1 vote
0 answers
128 views

Mid 2012 Mackbook Pro performance problems

I bought an used Macbook Pro Mid 2012 and it has performance issues. Basically it hangs from time to time even when its not under heavy load. I started to inspect the possible causes and I found out ...
NoNameProvided's user avatar
1 vote
1 answer
588 views

My SSD seems slow, could it be the link speed?

I just replaced my old HD from a late-2009 iMac with a new Samsung SSD 850 EVO 1TB. It was installed by an official Apple repair store but I am worried because it seems slower than my new macboook ...
wizbcn's user avatar
  • 111
0 votes
1 answer
718 views

Less RAM and an SSD vs. more RAM and an HDD?

This isn't a question about which part of my computer to upgrade. It's a question about what I should buy in my eventual new computer. I have an early 2011 13" MBP with a 500GB hard drive and an ...
user24601's user avatar
  • 6,262
0 votes
0 answers
356 views

Random freezes during work (Fusion Drive not removed correctly?)

I have a Macbook Pro 13" late 2011 and ever since I've replaced DVD-reader for an SSD my notebook started freezing sometimes. It happens suddenly, for no reason whatsoever and I can only move mouse ...
Akiiino's user avatar
  • 163
3 votes
3 answers
747 views

Performance of MacBook Air SSD Targeted from iMac

I use a MacBook Air, but would like to put an iMac at my office for a performance boost. I don't want to switch between operating systems, so I'd like to target the Air's SSD (via Thunderbolt 2) when ...
bendytree's user avatar
1 vote
2 answers
88 views

Will upgranding my MBP to an internal SSD, improve also speed of reading external non SSD HDrives?

So, I'm thinking of upgrading my MBP (13' late 2011) with an internal SSD drive. I'm wondering if the increase in speed of read and write on the SSD internal drive, will increase peroformance and ...
Mojo's user avatar
  • 11
0 votes
1 answer
816 views

How much faster is an external SSD than external HDD if internal drive is SSD?

I'm running intensive animation software and am having speed issues. At the moment I'm just working from an internal SSD. How much faster should it run if I put the project files on an external HDD? ...
Steve P's user avatar
  • 11
1 vote
2 answers
443 views

MBP Late 2011 freezes under yosemite

I have an MacBook Pro Late 2011 and it freezes (So the Beachball is turning arround), not completely randomly but when I use the disks, (writing or reading data) over 1/2 Mb/s so if I copy a big file ...
Angelo's user avatar
  • 61
0 votes
3 answers
354 views

Fully upgraded MBA or MBP (13")? [closed]

I'm looking to buy my first macbook and I am unsure which one to buy. I will use my laptop while travelling mostly next year on my working holiday visa for general purposes (web browsing, watching ...
rikket's user avatar
  • 141
2 votes
1 answer
257 views

Why don't I see a significant boost in performance moving to SSD on MacBook7,1?

I've got a 2010 MacBook (MacBook7,1) with 8GB RAM running Mavericks 10.9. I recently replaced the stock HDD with a Samsung 850 EVO 250GB SSD and restored from a Time Machine backup. Though Disk Speed ...
bjb's user avatar
  • 2,624
7 votes
1 answer
34k views

Ridiculously slow MacBook Pro

I have a MacBook Pro (I think mid 2012). About three months ago it started running really slow, so I renstalled the OS with a recovery partition. For a few weeks it ran very well with an overall very ...
user1291510's user avatar
0 votes
2 answers
1k views

Third party SSD optimization Yosemite

Unaware of the current issues with Third-Party SSD support on Yosemite I went ahead and bought a 128 GB Crucial MX100 SSD. I hear a lot of problems about enabling Trim on Yosemite etc. I recently ...
Gregory Peck's user avatar