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se7enOffline
Post subject: Slow copy speed  PostPosted: 10.07.2011, 09:07



Joined: 2010-09-11
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Is there a way to improve cp speed?

Aptosid copies files between 3 and 8MiB/s.
Same hardware, files different OS (windows 7) copy speed is between 20 and 25MiB/s.
Why is that so?

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arwaOffline
Post subject: RE: Slow copy speed  PostPosted: 10.07.2011, 10:09



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Which device is the source and which one the target of the copy process?
 
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se7enOffline
Post subject: RE: Slow copy speed  PostPosted: 10.07.2011, 11:00



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Both are external usb 2 sata drives.
But like I said the setup and the files are exactly the same.

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gerdOffline
Post subject: RE: Slow copy speed  PostPosted: 10.07.2011, 11:43



Joined: 2010-09-13
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Windows lies.
http://www.brennling.de/cd-geschwindigkeit.php
 
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arwaOffline
Post subject: RE: Slow copy speed  PostPosted: 10.07.2011, 19:35



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What are the mount options of the two devices? If they are mounted synchronized, that might slow down things AFAIR. So you could try to mount them "async". But this requires to make sure to unmount them before removing the devices.
 
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kb0haeOffline
Post subject: RE: Slow copy speed  PostPosted: 10.07.2011, 20:20



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Have you actually timed the copying in both OSs?
 
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