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Twilight

super slow write speed on my ssd

https://forums.macrumors.com/threads/slow-ssd-write-speeds-on-older-imac.2053041/

I found this article that looks similar to your situation it looks Like 

1) he made sure trim was enable then...

2) He ran "fsck -fy" in terminal to force trim.

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Posted · Original PosterOP

so I was experiencing random slowdowns etc, so I decided to run a disk speed test, and I discovered this:

600432636_Screenshot2019-05-01at19_36_07.png.d6eef98f77d563a8f441a4a0b531e666.png

as you can see the read speed is fine, but the write speed is really slow. 

 

the ssd is an Adata SU800 1TB, and it should be a lot faster than this. I don't know if this is a defect with my Mac or what, because I haven't lost any files or anything... when I did that test Spotify was downloading loads of music but my internet is only 100mbit max so nowhere near fast enough to bottleneck the write speed of the ssd. 

 

the rest of the specs of my system are:

260352879_Screenshot2019-05-01at19_36_20.png.9cf5d73ffd6eaa7cde96c860651ae90d.png

 

 

if anyone knows what this is or how to troubleshoot it let me know. 

 

for complete transparency, this is a legit Mac, not a hackintosh. 


They/Them 

Phone: Nokia 7.2 | 128GB | Android

Laptop: Apple MacBook Pro | Core i5 7360U | Iris 640 | 8GB RAM | 120GB SSD | macOS

Gaming PC: Asus Prime Z370-P | Core i3-8100 | R9 290X | 16GB RAM | 250GB SSD | Bitfenix Whisper | Windows 10

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Posted · Original PosterOP
9 minutes ago, WhiteRabbite079 said:

https://forums.macrumors.com/threads/slow-ssd-write-speeds-on-older-imac.2053041/

I found this article that looks similar to your situation it looks Like 

1) he made sure trim was enable then...

2) He ran "fsck -fy" in terminal to force trim.

thanks for this. I can't reboot my Mac rn but when I'm done with what I'm doing I'll try it. 


They/Them 

Phone: Nokia 7.2 | 128GB | Android

Laptop: Apple MacBook Pro | Core i5 7360U | Iris 640 | 8GB RAM | 120GB SSD | macOS

Gaming PC: Asus Prime Z370-P | Core i3-8100 | R9 290X | 16GB RAM | 250GB SSD | Bitfenix Whisper | Windows 10

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Posted · Original PosterOP
3 hours ago, WhiteRabbite079 said:

No problem! Let me know if it works.

I enabled trim using sudo trimforce enable and then I did the command in single user mode that the link you send gave me, and it's not perfect but a hell of a lot better. 

 

416142889_Screenshot2019-05-01at21_53_45.png.6c6b43d87e6e4e222c54a9dfe59c14af.png


They/Them 

Phone: Nokia 7.2 | 128GB | Android

Laptop: Apple MacBook Pro | Core i5 7360U | Iris 640 | 8GB RAM | 120GB SSD | macOS

Gaming PC: Asus Prime Z370-P | Core i3-8100 | R9 290X | 16GB RAM | 250GB SSD | Bitfenix Whisper | Windows 10

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