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Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

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Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#61
post #55

M1 Air 16GB 1 TB, probably like 𝟹̶ ̶𝚖̶𝚘̶𝚗̶𝚝̶𝚑̶𝚜̶ ̶𝚘̶𝚕̶𝚍̶ 5 months old === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 38 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 15% Data Units Read: 864,095,867 [442 TB] Data Units Written: 856,395,960 [438 TB] Host R…

Wow. What kinda operations are you performing? It's at an indicated 15% of its life in 3 months! (I understand that it can go past 100%)

Need to remember the actual date I got it, but it's definitely not longer than 5 months or something.

Edit: My user folder was created May 26, 2022. So 5 months.

Basically I was completely unaware of this problem to start with.

I'm a generalist, and so typically:

- have Blender open doing some 3D modeling, then forget to close

- make some music on Ableton with hundreds of tracks and plugins

- designing a UI on Sketch

- Davinci Resolve is open cause I'm color grading a shot I just rendered

- After Effects is open cause I'm compositing something

- Atom or VSCode or sometimes both are open cause I'm writing some code for Blender (creative coding) to render online, or for anything else code-related, etc. etc....

- oh and Chrome is open with hundreds of tabs cause I'm researching a bunch of stuff + watching videos.

I understand that I don't need to have all these apps open at the same time, but typically that happens for 2 reasons, either 1. I forget to close, or dont want to close just yet or 2. I'm working on a single project that's using all these apps.

I'm a very very very heavy user. I like my computer to be able to handle me doing stupid things like this. Anyway it's good that I'm now aware of this, will make sure to not try to exceed the RAM my computer is capable of, but I honestly see it as a design flaw and less my own 'irresponsibility'.

I do see this as a temporary computer though until I somehow make enough money to buy a much more powerful one. Will make sure to get an M1 with the highest TB drive then.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#62
A couple hundred gbs write and read per day seem normal to me for a developer machine.

Spinning up a new VM from scratch itself will take around 10gb read and write.

If you are building containers or loading up a lot of data, can easily reach that.

I'm surprised your figures are low because I always see tens of gbs of write and read normally without doing much.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#63
2021 16" MacBook Pro, Apple M1 Pro silicon, 16gb / 1TB, purchased March 2021. Personal laptop, super light web dev (hobby projects):

    === START OF SMART DATA SECTION ===
    SMART overall-health self-assessment test result: PASSED

    SMART/Health Information (NVMe Log 0x02)
    Critical Warning:                   0x00
    Temperature:                        27 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          99%
    Percentage Used:                    6%
    Data Units Read:                    509,334,138 [260 TB]
    Data Units Written:                 394,959,651 [202 TB]
    Host Read Commands:                 4,719,463,111
    Host Write Commands:                1,312,261,606
    Controller Busy Time:               0
    Power Cycles:                       178
    Power On Hours:                     938
    Unsafe Shutdowns:                   9
    Media and Data Integrity Errors:    0
    Error Information Log Entries:      0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#64
M1 Max 64GB 4TB. Honestly surprised about this. I was expecting MUCH more use since I do video editing/coding/remuxing. I got this at launch

=== START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 31 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 0% Data Units Read: 48,482,411 [24.8 TB] Data Units Written: 32,693,167 [16.7 TB] Host Read Commands: 570,658,787 Host Write Commands: 280,299,147 Controller Busy Time: 0 Power Cycles: 216 Power On Hours: 265 Unsafe Shutdowns: 12 Media and Data Integrity Errors: 0 Error Information Log Entries: 0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#66
I feel like it's mostly been fixed. There are probably individual applications and setups that trigger excessive writes, so a reboot from time to time makes sense to kill any application that might be abusive (assuming it doesn't start on login).

At 5GB/day, a 1TB drive will last at least 10 years… assuming 5GB every day for 10 years, which is unrealistic. Apple will drop latest release OS support in 4-5 years… will you still be doing 5GB per day in that case? Probably not.

I honestly think that all SSD/NVME chips need to post their TBW so that people can make their own decision. I also feel like this would benefit Apple, since people will choose their storage solution based on lifespan and not size. Because while a 1TB drive might last 5-10 years, an 8TB drive will basically last forever. Feels like a good sales tactic, honestly, for those with anxiety about drive failure.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#67

M1 Max 64GB 4TB. Honestly surprised about this. I was expecting MUCH more use since I do video editing/coding/remuxing. I got this at launch === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 31 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 0% Data Units Read: 48,482,4…

Hm... well you've got plenty of RAM for that, so not surprising

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#68

M1 Mac Mini. I beat the heck out of this thing. SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 28 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 5% Data Units Read: 83,875,891 [42.9 TB] Data Units Written: 70,257,403 [35.9 TB] Host Read Commands: 881,926,045 Host Write Commands: 530,490,261 Controller Busy Time: 0 Power Cycles: 3,350 Power On Hours: 496 Uns…

I think in some cases the drive goes to "sleep" when idle and it counts a power cycle when it detects keyboard/mouse movement as a wake. I have an older 2016 MBP with a 2TB drive that has just shy of 50,000 power cycles… which doesn't seem possible, since that would average out to over 20 reboots a day, which doesn't happen. And in 6 years I only have 361 unsafe shutdowns.

There was a time period where I had this docked with displays and the MBP would often wake up from sleep randomly, or from mouse movements. Never did quite figure it out.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#69
Another anecdata for the pile; M1 MacBook Pro, December 2020 (~22 months old, heavy usage.)

    === START OF SMART DATA SECTION ===
    SMART overall-health self-assessment test result: PASSED
    
    SMART/Health Information (NVMe Log 0x02)
    Critical Warning:                   0x00
    Temperature:                        43 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          99%
    Percentage Used:                    24%
    Data Units Read:                    2,572,188,062 [1.31 PB]
    Data Units Written:                 1,431,628,344 [732 TB]
    Host Read Commands:                 24,927,069,158
    Host Write Commands:                5,308,198,627
    Controller Busy Time:               0
    Power Cycles:                       283
    Power On Hours:                     3,605
    Unsafe Shutdowns:                   37
    Media and Data Integrity Errors:    0
    Error Information Log Entries:      0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#70

Another anecdata for the pile; M1 MacBook Pro, December 2020 (~22 months old, heavy usage.) === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 43 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 24% Data Units Read: 2,572,188,062 [1.31 PB] Data Units Written: 1,431,628,34…

> 1.31 PB

Wow, that's a large number.

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