Re: USB stack

On Sun, Jan 7, 2018 at 12:20 PM, Warner Losh <imp_at_bsdimp.com> wrote:

>
>
> On Sat, Jan 6, 2018 at 9:18 PM, blubee blubeeme <gurenchan_at_gmail.com>
> wrote:
>
>>
>>
>> On Sun, Jan 7, 2018 at 12:11 PM, Warner Losh <imp_at_bsdimp.com> wrote:
>>
>>>
>>>
>>> On Sat, Jan 6, 2018 at 8:56 PM, blubee blubeeme <gurenchan_at_gmail.com>
>>> wrote:
>>>
>>>> I ask does FreeBSD usb stack actually implements USB spec 2.0 or greater
>>>> and the topic gets derailed...?
>>>>
>>>
>>> Yes, it does.
>>>
>>>
>>>> Are you guys saying that 7-8MB/s is USB speeds?
>>>>
>>>
>>> I've gotten up to 24MB/s for maybe a decade. That's not possible with
>>> USB 1.x. More recently, I've maxed out the writes on a USB stick at about
>>> 75MB/s (the fastest it will do), which isn't possible with USB 2.0... I've
>>> not tried USB3 with an SSD that can do more....
>>>
>>> Warner
>>>
>>>
>>>> On Thu, Jan 4, 2018 at 6:44 PM, O'Connor, Daniel <darius_at_dons.net.au>
>>>> wrote:
>>>>
>>>> >
>>>> >
>>>> > > On 4 Jan 2018, at 09:23, Gary Jennejohn <gljennjohn_at_gmail.com>
>>>> wrote:
>>>> > >> What is an "LG v30"?
>>>> > >>
>>>> > > It's a smartphone from LG and only supports USB2 speed.  The
>>>> reported
>>>> > > transfer rate is no big surprise.
>>>> >
>>>> > OK thanks.
>>>> >
>>>> > --
>>>> > Daniel O'Connor
>>>> > "The nice thing about standards is that there
>>>> > are so many of them to choose from."
>>>> >  -- Andrew Tanenbaum
>>>> > GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
>>>> >
>>>> >
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>>>>
>>>
>>> I just connected a Transcend StorageJet 1TB hdd not a mobile phone
>> -------------------------------------------------------------------
>> Jan  7 11:56:56 blubee kernel: umass0 on uhub0
>> Jan  7 11:56:56 blubee kernel: umass0: <StoreJet Transcend StoreJet
>> Transcend, class 0/0, rev 3.00/80.00, addr 4> on usbus0
>> Jan  7 11:56:56 blubee kernel: umass0:  SCSI over Bulk-Only; quirks =
>> 0x0100
>> Jan  7 11:56:56 blubee kernel: umass0:3:0: Attached to scbus3
>> Jan  7 11:56:56 blubee kernel: da0 at umass-sim0 bus 0 scbus3 target 0
>> lun 0
>> Jan  7 11:56:56 blubee kernel: da0: <StoreJet Transcend 0> Fixed Direct
>> Access SPC-4 SCSI device
>> Jan  7 11:56:56 blubee kernel: da0: Serial Number W9328YZN
>> Jan  7 11:56:56 blubee kernel: da0: 400.000MB/s transfers
>> Jan  7 11:56:56 blubee kernel: da0: 953869MB (1953525168 512 byte sectors)
>> Jan  7 11:56:56 blubee kernel: da0: quirks=0x2<NO_6_BYTE>
>> Jan  7 12:06:08 blubee kernel: lock order reversal:
>> Jan  7 12:06:08 blubee kernel:  1st 0xfffffe07c26336c0 bufwait (bufwait)
>> _at_ /usr/src/sys/vm/vm_pager.c:374
>> Jan  7 12:06:08 blubee kernel:  2nd 0xfffff80148c425f0 zfs (zfs) _at_
>> /usr/src/sys/dev/md/md.c:952
>> Jan  7 12:06:08 blubee kernel: stack backtrace:
>> Jan  7 12:06:08 blubee kernel: #0 0xffffffff80acfa03 at
>> witness_debugger+0x73
>> Jan  7 12:06:08 blubee kernel: #1 0xffffffff80acf882 at
>> witness_checkorder+0xe02
>> Jan  7 12:06:08 blubee kernel: #2 0xffffffff80a41b8e at
>> lockmgr_lock_fast_path+0x1ae
>> Jan  7 12:06:08 blubee kernel: #3 0xffffffff81094309 at VOP_LOCK1_APV+0xd9
>> Jan  7 12:06:08 blubee kernel: #4 0xffffffff80b4ac36 at _vn_lock+0x66
>> Jan  7 12:06:08 blubee kernel: #5 0xffffffff80611d32 at
>> mdstart_vnode+0x442
>> Jan  7 12:06:08 blubee kernel: #6 0xffffffff806102ce at md_kthread+0x1fe
>> Jan  7 12:06:08 blubee kernel: #7 0xffffffff80a2d654 at fork_exit+0x84
>> Jan  7 12:06:08 blubee kernel: #8 0xffffffff80ef5e0e at
>> fork_trampoline+0xe
>> Jan  7 12:06:15 blubee kernel: lock order reversal:
>> Jan  7 12:06:15 blubee kernel:  1st 0xfffffe07c41d5dc0 bufwait (bufwait)
>> _at_ /usr/src/sys/kern/vfs_bio.c:3562
>> Jan  7 12:06:15 blubee kernel:  2nd 0xfffff8002bb31a00 dirhash (dirhash)
>> _at_ /usr/src/sys/ufs/ufs/ufs_dirhash.c:281
>> Jan  7 12:06:15 blubee kernel: stack backtrace:
>> Jan  7 12:06:15 blubee kernel: #0 0xffffffff80acfa03 at
>> witness_debugger+0x73
>> Jan  7 12:06:15 blubee kernel: #1 0xffffffff80acf882 at
>> witness_checkorder+0xe02
>> Jan  7 12:06:15 blubee kernel: #2 0xffffffff80a748a8 at _sx_xlock+0x68
>> Jan  7 12:06:15 blubee kernel: #3 0xffffffff80d6a28d at
>> ufsdirhash_add+0x3d
>> Jan  7 12:06:15 blubee kernel: #4 0xffffffff80d6d119 at ufs_direnter+0x459
>> Jan  7 12:06:15 blubee kernel: #5 0xffffffff80d76313 at
>> ufs_makeinode+0x613
>> Jan  7 12:06:15 blubee kernel: #6 0xffffffff80d71ff4 at ufs_create+0x34
>> Jan  7 12:06:15 blubee kernel: #7 0xffffffff810919e3 at
>> VOP_CREATE_APV+0xd3
>> Jan  7 12:06:15 blubee kernel: #8 0xffffffff80b4a53d at vn_open_cred+0x2ad
>> Jan  7 12:06:15 blubee kernel: #9 0xffffffff80b42e92 at kern_openat+0x212
>> Jan  7 12:06:15 blubee kernel: #10 0xffffffff80f16d2b at
>> amd64_syscall+0x79b
>> Jan  7 12:06:15 blubee kernel: #11 0xffffffff80ef5b7b at
>> Xfast_syscall+0xfb
>>
>>
>> Is the slow transfers user error?
>>
>
> It's likely due to the slow UFS issue...
>
> Warner
>
The Transcend ssd is formated ZFS, I use it as a backup.

The microsd might suffer from what you say since it's formatted by Android
but I do not get these slow transfer speeds on other OS.

so a quick roundup.
1) 256GB Samsung microsd card gets 7-8MB/s transfer speeds;
let's say that's because of the Android OS default format.
I only get these slow speeds on FreeBSD, why is that?

2) 1TB Transcend SSD formatted to ZFS I pasted the dmesg log above;
are the slow speeds user error or something else?

_at_Warner Losh
what was your setup where you were able to transfer 23-75MB/s to your USB
device?