Date: Wed, 19 Oct 2011 03:41:16 GMT From: Chargen <chargen@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: usb/161793: poor EHCI usb2 i/o performance Message-ID: <201110190341.p9J3fGbc020540@red.freebsd.org> Resent-Message-ID: <201110190350.p9J3o3Xg032965@freefall.freebsd.org>
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>Number: 161793
>Category: usb
>Synopsis: poor EHCI usb2 i/o performance
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Oct 19 03:50:03 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Chargen
>Release: 10.0-CURRENT
>Organization:
>Environment:
FreeBSD schwarzesonne 10.0-CURRENT FreeBSD 10.0-CURRENT #0: Tue Oct 18 21:40:49 CEST 2011 chargen@schwarzesonne:/usr/src/sys/i386/compile/SCHWARZESONNE i386
>Description:
I did some OHCI/EHCI usb1/2 subsystem performance checks on CURRENT with 1 older generation 1gb USB memory stick and a newer 2GB USB memory stick. EHCI, usb2 UFS or MSDOSFS formatted gives about the same performance in FreeBSD, ~3MB/s and about 8~10 MB/s under Windows operating systems using the same hardware.
schwarzesonne# usbconfig dump_info | grep "480"
ugen2.1: <EHCI root HUB NEC> at usbus2, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE
schwarzesonne# dmesg | grep "usbus2"
usbus2: EHCI version 1.0
usbus2: <NEC uPD 720100 USB 2.0 controller> on ehci0
usbus2: 480Mbps High Speed USB v2.0
ugen2.1: <NEC> at usbus2
uhub2: <NEC EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus2
ugen2.2: <Generic> at usbus2
umass0: <Generic Mass Storage, class 0/0, rev 2.00/1.41, addr 2> on usbus2
schwarzesonne# mount
/dev/da0p2 on / (ufs, local, noatime, journaled soft-updates)
devfs on /dev (devfs, local)
schwarzesonne# dmesg | grep "da1"
da1 at umass-sim0 bus 0 scbus4 target 0 lun 0
da1: <A60C0705 Flash Disk 8.07> Removable Direct Access SCSI-2 device
da1: 40.000MB/s transfers
da1: 999MB (2047998 512 byte sectors: 64H 32S/T 999C)
schwarzesonne# time dd if=/dev/zero of=/dev/da1 count=2
2+0 records in
2+0 records out
1024 bytes transferred in 0.003543 secs (289029 bytes/sec)
0.000u 0.002s 0:00.02 0.0% 0+0k 0+2io 0pf+0w
schwarzesonne# ls -alrt /dev/da1*
crw-r----- 1 root operator 0x55 Oct 19 03:01 /dev/da1
crw-r----- 1 root operator 0x62 Oct 19 03:01 /dev/da1s1
crw-r----- 1 root operator 0x72 Oct 19 03:02 /dev/da1s1a
schwarzesonne# fdisk -vBI /dev/da1
******* Working on device /dev/da1 *******
fdisk: invalid fdisk partition table found
parameters extracted from in-core disklabel are:
cylinders=999 heads=64 sectors/track=32 (2048 blks/cyl)
parameters to be used for BIOS calculations are:
cylinders=999 heads=64 sectors/track=32 (2048 blks/cyl)
Information from DOS bootblock is:
1: sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 32, size 2045920 (998 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 998/ head 63/ sector 32
2: <UNUSED>
3: <UNUSED>
4: <UNUSED>
fdisk: Class not found
schwarzesonne# bsdlabel -w da1s1
schwarzesonne# time newfs -O 1 /dev/da1s1a
/dev/da1s1a: 999.0MB (2045904 sectors) block size 32768, fragment size 4096
using 4 cylinder groups of 249.75MB, 7992 blks, 16128 inodes.
super-block backups (for fsck -b #) at:
64, 511552, 1023040, 1534528
0.005u 0.015s 0:06.25 0.1% 128+15616k 6+260io 0pf+0w
schwarzesonne# mkdir /mnt/usb
schwarzesonne# mount -v /dev/da1s1a /mnt/usb/
/dev/da1s1a on /mnt (ufs, local, fsid 66279e4eff2fa382)
schwarzesonne# time dd if=/dev/zero bs=1m count=500 > /mnt/usb/500mb
500+0 records in
500+0 records out
524288000 bytes transferred in 106.844333 secs (4907027 bytes/sec)
0.007u 1.813s 1:46.85 1.6% 28+5603k 5+4006io 0pf+0w
: rebooted to flush caches and track read performance
schwarzesonne# reboot
schwarzesonne# mount /dev/da1s1a /mnt/usb
schwarzesonne# time cp /mnt/usb/500mb /root/.
0.000u 2.665s 0:44.18 6.0% 21+5364k 4007+4000io 0pf+0w
:: EHCI, 2gb stick, usb2 performance, same procedure, rebooted and used newfs
Oct 19 04:15:53 schwarzesonne kernel: da1 at umass-sim0 bus 0 scbus4 target 0 lun 0
Oct 19 04:15:53 schwarzesonne kernel: da1: <CBM Flash Disk 5.00> Removable Direct Access SCSI-2 device
Oct 19 04:15:53 schwarzesonne kernel: da1: 40.000MB/s transfers
Oct 19 04:15:53 schwarzesonne kernel: da1: 2024MB (4145664 512 byte sectors: 255H 63S/T 258C)
ugen2.2: <Flash Disk CBM> at usbus2, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON
schwarzesonne# time newfs -O 1 /dev/da1s1a
/dev/da1s1a: 2023.8MB (4144688 sectors) block size 32768, fragment size 4096
using 4 cylinder groups of 505.97MB, 16191 blks, 32512 inodes.
super-block backups (for fsck -b #) at:
64, 1036288, 2072512, 3108736
0.027u 0.009s 0:08.75 0.2% 64+7808k 6+516io 0pf+0w
schwarzesonne# time dd if=/dev/zero bs=1m count=500 > /mnt/usb/500mb
500+0 records in
500+0 records out
524288000 bytes transferred in 173.849854 secs (3015752 bytes/sec)
0.008u 1.812s 2:53.85 1.0% 23+4694k 4+4005io 0pf+0w
:: EHCI, 2gb stick, usb2 performance, msdosfs FAT formatted under WindowsXP
schwarzesonne# mount -t msdosfs -o -m=644,-M=755 /dev/da1s1 /mnt/usb
schwarzesonne# time dd if=/dev/zero bs=1m count=500 > /mnt/usb/500mb
500+0 records in
500+0 records out
524288000 bytes transferred in 170.956245 secs (3066796 bytes/sec)
0.008u 1.787s 2:50.95 1.0% 24+4862k 0+8001io 0pf+0w
:: OHCI, 2gb stick, performance
schwarzesonne# time dd if=/dev/zero bs=1m count=500 > /mnt/usb/500mb
500+0 records in
500+0 records out
524288000 bytes transferred in 601.650968 secs (871416 bytes/sec)
0.000u 1.723s 10:01.65 0.2% 22+4325k 4+4005io 0pf+0w
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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