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FTP transfer rate

Posted: 23 Mar 2007, 16:47
by Zarei

Just got may Bubba yesterday and am now transferring my files over via ftp. I have connected it to a 100Mbit switch but can't seem to get transfer rates over 3Mbyte/s. I have had rates ~ 9Mbyte/s from my computer. I have no other transfers going to either computer.


Posted: 07 Apr 2007, 04:12
by Zarei
I think I've found the weak link. I tested the read speed of the HD and this is what I found:

Timing cached reads: 244 MB in 2.02 seconds = 120.83 MB/sec
Timing buffered disk reads: 24 MB in 3.14 seconds = 7.65 MB/sec

Can this be right? I get about 10 times the speed on my main computer. These are my hdparm settings for /dev/hda

multcount = 0 (off)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 60801/255/63, sectors = 976773168, start = 0

Which of these would be safe to change?

Posted: 16 Apr 2007, 17:42
by dsp76
So does it mean, there are some wrong settings in Bubba, which slows down everything unnecessary? Can it easy be fixed?

Posted: 16 Apr 2007, 19:49
by lelle
You can speed up hd access a bit by issuing the 'hdparm -m16 /dev/hda' command as user root

Posted: 17 Apr 2007, 00:40
by Zarei
It seems this is the speed that the HD runs at normally. I tried -m16 and it doesn't change that much, maybe 1-2%.