Opened 5 years ago

Last modified 7 weeks ago

#11016 new bug

Significant NTFS write performance differences USB2/eSATA

Reported by: cian Owned by: 3dEyes
Priority: low Milestone: R1
Component: File Systems/NTFS Version: R1/Development
Keywords: Cc: ttcoder
Blocked By: Blocking:
Has a Patch: no Platform: All


I have a Targa MediaBox 320GB external HDD from a fair few years ago at this stage which I have an NTFS and BFS partition on.

Over USB, the BFS partition writes at an acceptable speed. NTFS however writes extremely slowly, as in sub-50KB/sec. This was checked on two computers (both running different post-PM revisions)

The same drive also has an eSATA connector, over which writes are significantly faster to NTFS - 4MB/sec or so. No major difference is seen in BFS writes.

Change History (3)

comment:1 Changed 10 months ago by cocobean

Verified. NTFS write speed averages around 150KiB/s on USB 3.0 drive from a USB 2.0 port.

comment:2 Changed 8 weeks ago by waddlesplash

Component: Drivers/USBFile Systems/NTFS
Owner: changed from mmlr to 3dEyes

If BFS speeds are fine, then it's not a USB problem, but a NTFS problem.

comment:3 Changed 7 weeks ago by ttcoder

Cc: ttcoder added

FWIW, I've observed that ntfs will copy files at 100 KiB/s or less on a 'big' partition (200+ GiB) but will copy at multi-MiB/s speed on a small 10 GiB partition. So I use a small partition as an interim step for Haiku/Windows file sharing, and then reboot into Windows to finally move the files to the big partition.

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