hello all,
I've upgraded my old computer (duron 800 - 256MB ram) with a usb 2.0 pci card + 200GB usb drive 7200rpm with 8MB cache (canyon). I use suse 9.2 ( 2.6.8-24.14-default )
lspci-output:
-------------
-------------
mainboard:
------------
0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
usb-card:
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0000:00:10.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation USB
0000:00:10.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation USB
0000:00:10.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
current status:
cat /proc/bus/usb/devices lists the port in question with 480Mbits and in general the disk works, but just too slow.
I've also made sure that the ehci_hcd module is loaded before uhci/ohci and grabs the right port.
for reasons of security and file permissions I'd like to run some linux filesystem on that disk and not fat32.
problem:
lack of performance.
cp a file with fat32: write: 5MB/s read: 19MB/s not super, but fast enough for backups
cp a file using ext2, ext3, reiser, jfs, xfs or whatnot: write: 0.5 to 1 MB/s read: 15MB/s
so read performance is ok, but write performace SUCKS ! copying large files is out of the question.
at first I thought it's some overhead because of the journaling that kills write performance, but ext2 is slow too.
some bonnie results as well (same partition, different filesystems, mounted sync). there is a HUGE difference in writes done with putc().
reiserfs:
---------
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13494', size: 268435456, volumes: 1
Writing with putc()... done: 526 kB/s 40.7 %CPU
Rewriting... done: 7916 kB/s 17.6 %CPU
Writing intelligently... done: 11877 kB/s 17.2 %CPU
Reading with getc()... done: 10990 kB/s 81.9 %CPU
Reading intelligently... done: 17637 kB/s 22.2 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
------ 1* 256 526 40.7 11877 17.2 7916 17.6 10990 81.9 17637 22.2 221.4 4.1
xfs:
----
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13643', size: 268435456, volumes: 1
Writing with putc()... done: 1332 kB/s 15.7 %CPU
Rewriting... done: 8453 kB/s 17.6 %CPU
Writing intelligently... done: 11904 kB/s 12.8 %CPU
Reading with getc()... done: 11803 kB/s 86.0 %CPU
Reading intelligently... done: 19991 kB/s 26.0 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
------ 1* 256 1332 15.7 11904 12.8 8453 17.6 11803 86.0 19991 26.0 220.4 3.4
ext2:
-----
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13689', size: 268435456, volumes: 1
Writing with putc()... done: 1274 kB/s 11.1 %CPU
Rewriting... done: 8779 kB/s 18.4 %CPU
Writing intelligently... done: 10105 kB/s 11.9 %CPU
Reading with getc()... done: 9647 kB/s 70.5 %CPU
Reading intelligently... done: 19823 kB/s 26.2 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
------ 1* 256 1274 11.1 10105 11.9 8779 18.4 9647 70.5 19823 26.2 198.6 2.8
ext3:
-----
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13750', size: 268435456, volumes: 1
Writing with putc()... done: 569 kB/s 13.3 %CPU
Rewriting... done: 7747 kB/s 17.6 %CPU
Writing intelligently... done: 9556 kB/s 15.4 %CPU
Reading with getc()... done: 12835 kB/s 92.4 %CPU
Reading intelligently... done: 17904 kB/s 22.5 %CPU
Seeker 2...Seeker 3...Seeker 1...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
we1d23 1* 256 569 13.3 9556 15.4 7747 17.6 12835 92.4 17904 22.5 215.4 3.2
jfs:
-----
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13707', size: 268435456, volumes: 1
Writing with putc()... done: 1705 kB/s 15.7 %CPU
Rewriting... done: 8406 kB/s 15.9 %CPU
Writing intelligently... done: 11718 kB/s 11.8 %CPU
Reading with getc()... done: 9296 kB/s 66.9 %CPU
Reading intelligently... done: 16804 kB/s 20.1 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
we1d23 1* 256 1705 15.7 11718 11.8 8406 15.9 9296 66.9 16804 20.1 266.8 3.4
fat32:
-----
Code:
bonnie -d /media/usb-hd1/ -s 256
Bonnie 1.4: File '/media/usb-hd1//Bonnie.13780', size: 268435456, volumes: 1
Writing with putc()... done: 4380 kB/s 35.0 %CPU
Rewriting... done: 7339 kB/s 25.9 %CPU
Writing intelligently... done: 12074 kB/s 22.9 %CPU
Reading with getc()... done: 10607 kB/s 88.7 %CPU
Reading intelligently... done: 19005 kB/s 34.5 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
we1d23 1* 256 4380 35.0 12074 22.9 7339 25.9 10607 88.7 19005 34.5 212.9 16.0
any clues as to what the heck is going on ?
later,
robert
