Windows 10 Extremely slow write times.

[Bear]

Hey guys, idk whats going on, but a new install of win10 pro x64 has EXTREMELY slow read/write times on my HGST 3TB drive.

This has only started happening since I reinstalled windows. What is the world is going on?
*nix does NOT have this issue.
stats:

CPU: AMD FX-8350 (Piledriver/Vishera, OR-C0 (Orochi))
4000 MHz (20.00x200.0) @ 4334 MHz (20.00x216.7)
Motherboard: ASUS SABERTOOTH 990FX R2.0
Chipset: AMD 990FX (RD990) + SB920/SB950
Memory: 16384 MBytes @ 577 MHz, 11-11-11-28
- 8192 MB PC12800 DDR3 SDRAM - Mushkin 992110 (997110)
- 8192 MB PC12800 DDR3 SDRAM - Mushkin 992110 (997110)
Graphics: EVGA e-GeForce GTX 550 Ti
NVIDIA GeForce GTX 550 Ti, 1024 MB GDDR5 SDRAM
Drive: HITACHI HUA723030ALA640, 2930.3 GB, Serial ATA 6Gb/s @ 6Gb/s
Drive: WDC WD10JMVW-11AJGS4, 976.7 GB, Serial ATA 3Gb/s @ 3Gb/s <-> USB
Drive: ATAPI iHAS220 6, DVD+R DL
Sound: ATI/AMD SB800/Hudson-1 - High Definition Audio Controller
Sound: NVIDIA GF116 - High Definition Audio Controller
Network: RealTek Semiconductor RTL8168/8111 PCI-E Gigabit Ethernet NIC
OS: Microsoft Windows 10 Professional (x64) Build 16299.125 (1709/RS3)

Trying to zip the attached report while transferring these files resulted in the zip not being created until I paused the transfer.

 

[nmsuk]

Try lowering your FSB back to 200 as fsb overclocks can affect the southbridge and storage controllers.

 

[Bear]

I don't think I changed anything , i'll 'optimize" defaults and put it on turbo in bios ( asus settings ) should that do it?
oh, an could uefi have anything to do with it? I don't think it was using that before this last reinstall

 

[Bear]

ok, reset to optimized changed one setting to D.O.C.P. but couldn't find anything related to FSB. I left it on normal not turbo though.

 

[nmsuk]

I think turbo on asus overclocks the fsb, try with it off for awhile and see how it goes.

 

[Bear]

whats strange is I didn't have this problem until I reinstalled win10.
Does UEFI vs non make a difference?
Does it matter which sata port is used?

 

[nmsuk]

Latest AMD chipset drivers installed?

 

[Bear]

hmmm now thats a good question.. I've not added any additional MB drivers.

 

[Neemobeer]

UEFI or not won't make any difference. One thing looking at the picture is that you are copying a large number of presumably smaller files. That alone is going to have a huge impact on performance. I'd wager if you copied a single large file you'd get a much higher throughtput on the write. Sequential writes are much faster than random writes.

 

[Bear]

ok, but my question goes back to why did I not experience this issue before?
The difference in performance between windows and linux is like a 1930's vw and 2017 Ferrari

 

[Neemobeer]

Windows and Linux write to disk very differently. Windows will cram files together while Linux writes everything spaced much further apart. This is also why Windows has a high degree of fragmentation and Linux doesn't. That fragmentation will further exacerbate the write issue.