Was it ever really an Apple Silicon issue or a macOS issue? I thought this was a macOS and SSD issue even before Apple Silicon came out?
Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
41–50 of 144 posts
Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#42 === START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 33 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 0%
Data Units Read: 19,753,049 [10.1 TB]
Data Units Written: 9,383,782 [4.80 TB]
Host Read Commands: 367,211,629
Host Write Commands: 64,343,144
Controller Busy Time: 0
Power Cycles: 126
Power On Hours: 77
Unsafe Shutdowns: 5
Media and Data Integrity Errors: 0
Error Information Log Entries: 0Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#43Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#44M1 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…
Unsafe Shutdowns: 13
That's a bit worrisome. Has your mac been freezing/crashing?Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#45Was it ever really an Apple Silicon issue or a macOS issue? I thought this was a macOS and SSD issue even before Apple Silicon came out?
corespotlightd and suggestd in particular seem to do some kind of indexing operation after some trigger, which can write tens of gigabytes to the SSD.
I managed to narrow it down to an RSS reader app (from the app store, so presumably not doing anything untoward), which appears to be getting indexed. despite having turned almost all indexing in spotlight off, and even excluded ~/Library and /Library from spotlight.
After the main writes are done (150 MB/s for a period of time), corespotlightd and suggestd then continue to generate a background load of around 50 MB/s of writes for a sustained period of time.
Console logs show there's "ProactiveHarvesting" going on in suggestd, but no clear way to switch this off. I suspect (based on watching it write 16 GB over 5 to 10 minutes), others could be encountering this, or other similar behaviour.
Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#46M1 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…
Unsafe Shutdowns: 13 That's a bit worrisome. Has your mac been freezing/crashing?
Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#47Is this affecting M2 systems also?
Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#48 === 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 Read Commands: 2,546,210,282
Host Write Commands: 2,241,066,233
Controller Busy Time: 0
Power Cycles: 97
Power On Hours: 1,389
Unsafe Shutdowns: 7
Media and Data Integrity Errors: 0
Error Information Log Entries: 0Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#49M1 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…
Unsafe Shutdowns: 13 That's a bit worrisome. Has your mac been freezing/crashing?
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 pretty sure it really doesn't like crashes.
And I stopped playing Borderlands 3, because it liked to crash hard.
Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
#50 === 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: 0%
Data Units Read: 9,136,753 [4.67 TB]
Data Units Written: 4,296,299 [2.19 TB]
Host Read Commands: 123,750,226
Host Write Commands: 65,201,990
Controller Busy Time: 0
Power Cycles: 212
Power On Hours: 94
Unsafe Shutdowns: 27
Media and Data Integrity Errors: 0
Error Information Log Entries: 0