[Bug 244356] Writing to a USB 3.0 stick is very slow

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244356

--- Comment #24 from Sebastien Boisvert <seb at boisvert.info> ---
Update:

I removed USB sticks from my NAS.

FreeBSD 12.1 now runs on a ZFS mirror VDEV on my NVMe storage device.

root at atlantis:~ # usbconfig
ugen1.1: <0x1022 XHCI root HUB> at usbus1, cfg=0 md=HOST spd=SUPER (5.0Gbps)
pwr=SAVE (0mA)
ugen0.1: <0x1022 XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps)
pwr=SAVE (0mA)
ugen0.2: <vendor 0x8087 product 0x0aa7> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON (100mA)


root at atlantis:~ # nvmecontrol devlist
 nvme0: THNSN51T02DU7 TOSHIBA
    nvme0ns1 (976762MB)


root at atlantis:~ # gpart show -l -p nvd0
=>        40  2000409184    nvd0  GPT  (954G)
          40        2008          - free -  (1.0M)
        2048        1024  nvd0p1  gptboot0  (512K)
        3072        1024          - free -  (512K)
        4096    33554432  nvd0p2  swap0  (16G)
    33558528    67108864  nvd0p3  zfs0  (32G)
   100667392        1024  nvd0p4  gptboot1  (512K)
   100668416        1024          - free -  (512K)
   100669440    33554432  nvd0p5  swap1  (16G)
   134223872    67108864  nvd0p6  zfs1  (32G)
   201332736   134217728  nvd0p7  write-cache  (64G)
   335550464  1664858112  nvd0p8  read-cache  (794G)
  2000408576         648          - free -  (324K)

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