ext3 USB performance

[A. Sidiropoylos]

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Nikos Kanellopoulos wrote:
> Telika mallon einai 8ema purhna. Apo Knoppix 5.1.1 me  purhna 2.6.19
> h taxythta einai polu kalh:
> 
> root at Knoppix:/media/sda1/photo/2007/Elafonisos# du -m raw/
> 1224 raw/
> root at Knoppix:/media/sda1/photo/2007/Elafonisos# time cp -r raw/ /media/hda2
> 
> real    0m51.576s
> user    0m0.028s
> sys     0m3.540s
> 
> dhladh peripou 24 MB/sec
> 
> Nomizw xreiazomai anaba8mish...
> Alla 24 vs 4 den einai para poly? Einai kapoio gnwsto problhma tou 2.6.16 ?
> 
>....

Kita. Ston mikro sta8ero exw Ubuntu 6.06 me pirina 2.6.15. Oi taxitites
pou pianw sini8os se anagnosh kai egrafh mesa apo USB einai 25-28
MByte/sec. Ligotero pianw mono se enan 10Gbyte apo to palio forito mou
pou ekana ejoteriko alla ayto epidi o diskos einai poio argos apo thn
ka8isterish. Gia kapoio idietero problima tou 2.6.16 den exw akousei. To
mono pou mporw na fantastw einai na mhn anagnorizei sosta to chipaki tis
USB kai na mhn mporei na to elenjei oste na sou prosferei ta megista.

Kati paromio eixa pa8ei prin polh kairo otan prospa8ontas na epanaferw
to systima mou kai gia na mhn xasw ta arxeia mou 8elisa na ta metaferw
se ejoteriko disko kanontas boot me knoppix. Den anagnorise to tsipaki
tis NEC pou eixe h karta USB 2 kai to doulebe ws USB 1.1. Apotelesma
1MByte/sec boh8ia mas. 8-) (To opoio palh apexei apo ta 4 pou pianeis
esy alla th na pw... Ektos kai an den 8ymame kala thn taxitita) 8-)

- --
Athanasios Sidiropoylos
msx
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