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Phison E18 slow writes certain file sizes on Atto

mechtech

mechtech

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Just wondering if this is a FW issue or an atto issue or other?? It carries through my KC3000 1TB & 2TB and Corsair 4TB drives.

atto 4.01.0f1 SKC3000S1024GEIFK31.6 oct28 2024.jpg


atto 4.01.0f1 SKC3000S1024GEIFK31.7 oct29 2024.jpg

SKC3000S1024GEIFK31.6 oct29 2024 fresh trim atto 4.00.0f2.jpg

Corsair_MP600_PRO_LPXEIFM31.6 atto 4.00.0f2 sept 29 2024.jpg


Just curious is anyone else gets those anomalies with phison E18 drives?? @W1zzard
 
W1zzard

W1zzard

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I'm not using ATTO in my testing, any chance your SLC cache is full at that time?
 
mechtech

mechtech

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Memory Micron DDR4-3200 2x32GB D.S. D.R. (CT2K32G4DFD832A)
Video Card(s) AMD RX 6800 - Asus Tuf
Storage Kingston KC3000 1TB & 2TB & 4TB Corsair MP600 Pro LPX
Display(s) LG 27UL550-W (27" 4k)
Case Be Quiet Pure Base 600 (no window)
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Power Supply SuperFlower Leadex V Gold Pro 850W ATX Ver2.52
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Keyboard Corsair Strafe with browns
Software W10 22H2 Pro x64
W1zzard said:
I'm not using ATTO in my testing, any chance your SLC cache is full at that time?
Click to expand...
Hmmmm

not sure. Tested on a fresh start up and after I did a trim on the drive.
 
W1zzard

W1zzard

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How much free disk space?
 
mechtech

mechtech

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Memory Micron DDR4-3200 2x32GB D.S. D.R. (CT2K32G4DFD832A)
Video Card(s) AMD RX 6800 - Asus Tuf
Storage Kingston KC3000 1TB & 2TB & 4TB Corsair MP600 Pro LPX
Display(s) LG 27UL550-W (27" 4k)
Case Be Quiet Pure Base 600 (no window)
Audio Device(s) Realtek ALC1220-VB
Power Supply SuperFlower Leadex V Gold Pro 850W ATX Ver2.52
Mouse Mionix Naos Pro
Keyboard Corsair Strafe with browns
Software W10 22H2 Pro x64
W1zzard said:
How much free disk space?
Click to expand...
90% free

edit - just wondering if anyone else can test if they have an nvme with a Phison E18 controller??
1730327219097.png
 
Last edited:
K

K²mix

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Looks more like something is affecting the Atto benchmark?
I don't see any abnormalities with mine. Performance comparable to new condition. No KC3000 but Phison E18 +112 layer BICS5.

Exceria Pro.jpg
 
mechtech

mechtech

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Processor Ryzen 5700x
Motherboard Gigabyte X570S Aero G R1.1 BiosF5g
Cooling Noctua NH-C12P SE14 w/ NF-A15 HS-PWM Fan 1500rpm
Memory Micron DDR4-3200 2x32GB D.S. D.R. (CT2K32G4DFD832A)
Video Card(s) AMD RX 6800 - Asus Tuf
Storage Kingston KC3000 1TB & 2TB & 4TB Corsair MP600 Pro LPX
Display(s) LG 27UL550-W (27" 4k)
Case Be Quiet Pure Base 600 (no window)
Audio Device(s) Realtek ALC1220-VB
Power Supply SuperFlower Leadex V Gold Pro 850W ATX Ver2.52
Mouse Mionix Naos Pro
Keyboard Corsair Strafe with browns
Software W10 22H2 Pro x64
K²mix said:
Looks more like something is affecting the Atto benchmark?
I don't see any abnormalities with mine. Performance comparable to new condition. No KC3000 but Phison E18 +112 layer BICS5.

View attachment 369589
Click to expand...
Thanks

MS nvme driver? (that's what I'm using, and amd chipset driver)
 
H

Harlow

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I've just run ATTO on my KINGSTON SKC3000S1024G and the results are almost the same as those in K2mix's chart, but reads are a bit faster at 8.65MB/s.

I have see inconsistent results with some drives in ATTO, but have put it down to cache hits or controller latency at some test file sizes and stopped worrying about it.
 
egg_addict

egg_addict

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It seems that drives with a Phison E18 controller have issues with write speed degradation over time. I believe Kingston has a firmware update that fixes the issue, not sure what other manufacturers have an updated firmware that fixes the issue. If you've had these drives for a while, that's probably why.
 
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