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cool_hw

104 karma · joined September 29, 2022

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cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
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.
cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
Thanks for sharing, that's a lot of reads/writes.
cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
> seems fixed?

My linux machine that I have used for professional development for 6 years now reports (typed out the relevant bits by hand).

    Data Units Read:                    ...[4.44 TB]
    Data Units Written:                 ...[5.40 TB]
    ....
    Power Cycles:                       811
    Power On Hours:                     1142
16GB 512GB SSD

This is a machine that has been used for full time development, running virtual machines and docker and all sorts of activity.

After all that, it reports only ~5TB read/written. That is mind blowing to me.

cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
Wow. What is the SSD capacity?

So 226TB is ~8% for this capacity, i.e., about 28.25TB per 1%, so about 2825TB expected TBW. Ignoring the fact that this is ignoring many factors contributing to the life span, it's still quite an interesting capacity.

cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
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 * 5 = 80GB per day read/written. For 365 days, that is 80 * 365 = 29200 GB or 28.51 TB read/written.

cool_hw··on Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?
That is good to note, I wonder how accurate it is. Can you share how long you've had it and the typical usage (hours and disk activity)?
cool_hw··on n/a
I don't use Chrome and this is not related to Chrome. In fact, this is on a pretty fresh MacOS (Monterey) install.
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