DSM-G600, DNS-3xx and NSA-220 Hack Forum

Unfortunately no one can be told what fun_plug is - you have to see it for yourself.

You are not logged in.

Announcement

#1 2011-05-08 21:35:56

hammil
New member
Registered: 2011-05-08
Posts: 3

USB Sorage is slow

Right, I've setup USB storage on my 323, plugged in a pen drive, and get these results from hdparm:

Timing buffer-cache reads:    80 MB in 0.51 seconds = 159420 kB/s
Timing buffered disk reads:    2 MB in 3.44 seconds = 594 kB/s

Same thing for my USB hard drive with firmware 1.08. I'm not using a hub.
Why does this happen?
Is there any solution or workaround?
Thanks
Hamish

Offline

 

#2 2011-05-09 03:56:15

bound4h
Member
Registered: 2010-04-12
Posts: 209

Re: USB Sorage is slow

Similalr problem someone had about using a 'non-2.0 USB device'.  Check dmesg after you 'connect' your usb key and see what it reports when you connect.  Make sure it says 'high-speed device'.

EDIT: http://dns323.kood.org/forum/viewtopic.php?id=6312

Last edited by bound4h (2011-05-09 03:57:40)

Offline

 

#3 2011-05-09 09:21:12

hammil
New member
Registered: 2011-05-08
Posts: 3

Re: USB Sorage is slow

For comparison, here's the hdparm on my desktop for the same pendrive:

Timing cached reads:   8496 MB in  2.00 seconds = 4251.36 MB/sec
Timing buffered disk reads:   38 MB in  3.07 seconds =  12.38 MB/sec

Well, looks like it solved itself:


/ # hdparm -tT /dev/sdb

/dev/sdb:
Timing buffer-cache reads:    92 MB in 0.51 seconds = 182515 kB/s
Timing buffered disk reads:   24 MB in 3.00 seconds = 8171 kB/s
/ # hdparm -tT /dev/sdb

/dev/sdb:
Timing buffer-cache reads:   102 MB in 0.51 seconds = 202375 kB/s
Timing buffered disk reads:   29 MB in 3.89 seconds = 7622 kB/s
/ # hdparm -tT /dev/sdb

/dev/sdb:
Timing buffer-cache reads:   112 MB in 0.51 seconds = 222251 kB/s
Timing buffered disk reads:   29 MB in 3.07 seconds = 9667 kB/s
/ # hdparm -tT /dev/sdb

/dev/sdb:
Timing buffer-cache reads:   104 MB in 0.51 seconds = 208305 kB/s
Timing buffered disk reads:   29 MB in 3.09 seconds = 9581 kB/s

Seems like turning it off and on again worked this time!

Offline

 

Board footer

Powered by PunBB
© Copyright 2002–2010 PunBB