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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?

#81

Post by youssefabdelm »

brokenmachine wrote: post #75
youssefabdelm wrote: post #61

Earlier quoted context omitted.

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…

I'm impressed that you can do all that with only 16Gb RAM.

Oh barely... sometimes I hear clicks when switching between apps

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

#82

Post by ChrisMarshallNY »

naniwaduni wrote: post #59
ChrisMarshallNY wrote: post #6

My M1Max 1TB: SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 39 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 1% Data Units Read: 139,236,989 [71.2 TB] Data Units Written: 58,514,871 [29.9 TB] Host Read Commands: 6,104,303,185 Host Write Commands: 716,889,789 Controller Busy Time: 0 Power Cycles: 392 Power On Hours: 1,311 Unsafe Shutdowns: 121 Media and Da…

> Unsafe Shutdowns: 121 Holy shit, that's like once a day?

Sometimes, more.

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

#84

Post by AdamJacobMuller »

cool_hw wrote: post #7
jrib wrote: post #5

Earlier quoted context omitted.

another data point: SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 30 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 1% Data Units Read: 53,345,304 [27.3 TB] Data Units Written: 59,621,038 [30.5 TB] Host Read Commands: 349,163,066 Host Write Commands: 218,226,588 Controller Busy Time: 0 Power Cycles: 109 Power On Hours: 225 Unsafe Shutdowns: 8 Media and Dat…

Your read/writes seem to be comparable to the parent, but your power on hours are significantly lower, really hard to draw any conclusions here. I wonder if this whole issue is simply MacOS dumping the stuff in memory to disk when going to standby, and then reading it all back. So for a 16GB machine, for simplicity, let's say you always have RAM saturated, and you open/close the lid 5 times in a day, you have 16GB *…

Launch day purchased M1 MacBook Pro with 4TB SSD.

I have custom pmset setup to NOT dump to disk (mostly) with two aliases:

    pmset-fast: sudo pmset -ab hibernatemode 0 sleep 0
    pmset-secure: sudo pmset -ab hibernatemode 25 sleep 0 displaysleep 1
First one is memory only, if the battery dies, the battery dies and the OS goes away.

The second one is hard drive only, closing the lid writes to disk only and puts the laptop into deep sleep.

I know I'm weird for having this but since I run the first one (fast) 99% of the time I can basically say I almost never write hibernation files to disk.

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

#85

Post by AdamJacobMuller »

drdo wrote: post #4
AdamJacobMuller wrote: post #2

SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 34 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 0% Data Units Read: 33,233,061 [17.0 TB] Data Units Written: 63,502,177 [32.5 TB] Host Read Commands: 1,054,789,960 Host Write Commands: 1,703,081,155 Controller Busy Time: 0 Power Cycles: 184 Power On Hours: 921 Unsafe Shutdowns: 18 Media and Data Integrity Err…

What model of Macbook is this? And how big is the SSD?

Launch day purchased M1 MacBook Pro with 4TB SSD.

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

#86

Post by tomcam »

jackjeff wrote: post #76

Mac Studio M1 Max / 32 GB RAM / 2TB SSD / April 2022 Used daily for moderate "office" usage (Slack/Teams/Firefox/RDP) during office hours. Heavier usage (XCode/AndroidStudio/Lightroom/FCP) on weekends/evenings. === 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% Availa…

> I just wrote 1.7GB in the last 30mins while reading HN on Firefox

To be fair an HN page can consume hundreds or even thousands of bytes

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

#88

Post by ChrisMarshallNY »

ChrisMarshallNY wrote: post #49
alyandon wrote: post #44

Earlier quoted context omitted.

Unsafe Shutdowns: 13 That's a bit worrisome. Has your mac been freezing/crashing?

I hold the record for "unsafe shutdowns." One reason, is that I am constantly using Xcode, which is a bug farm, and SourceSafe used to crash like crazy. Also, some of the apps I'm developing don't start off, perfect. I spend a lot of time crashing. The advent of the M1 seems to have ushered in a new threading system. The threads act weird, now (look at how long it takes to resolve your stack, on a breakpoint). I'm pr…

Not SourceSafe. SourceTree.

I did use SourceSafe, but it has been many moons.

In any case, SourceTree just released an update that seems to have fixed all the crashes.

Xcode still has some issue with the source code analyzer. Sometimes, it just hangs. In some cases, it’s not force-quittable.

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

#89

Post by matai_kolila »

cool_hw wrote: post #30
matai_kolila wrote: post #10

My MacBook Air (M1, 2020): === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 32 Celsius Available Spare: 100% Available Spare Threshold: 99% Percentage Used: 1% Data Units Read: 8,843,213 [4.52 TB] Data Units Written: 12,256,532 [6.27 TB] Host Read Commands: 229,897,011 Host Write Commands: 452,963,…

As I shared in another post, compared to my linux machine, most of the posts, including yours, have atleast 5x-10x the usage. I understand that disk usage can vary wildly, but the linux machine I'm comparing with has been used through the work week for the past 6 years with VMs/docker and other large files.

Honestly I’ll probably replace this computer much before this becomes an issue.

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

#90

Post by kareemm »

2020 M1 Air 16BG/1TB. Still running OS X 11.3 - looks like I should upgrade...

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

    SMART/Health Information (NVMe Log 0x02)
    Critical Warning:                   0x00
    Temperature:                        42 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          99%
    Percentage Used:                    28%
    Data Units Read:                    1,704,591,506 [872 TB]
    Data Units Written:                 1,502,526,446 [769 TB]
    Host Read Commands:                 6,434,009,809
    Host Write Commands:                5,290,485,916
    Controller Busy Time:               0
    Power Cycles:                       207
    Power On Hours:                     2,500
    Unsafe Shutdowns:                   89
    Media and Data Integrity Errors:    0
    Error Information Log Entries:      0
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