Re: [Bug-ddrescue] Slowing down of ddrescue over time

[Antonio Diaz Diaz]

Hello Richard,

Richard Bertrand wrote:
> Firstly, thank you for this fine tool.

You are welcome. :-)


> I use it on almost all recoveries, as I never know whether the drive is 
> at fault or not when I get a non-working computer which I am asked to 
> revive.

Good idea!


> There is one peculiarity I have noticed, however: ddrescue is starting 
> fast and subsequently slowing down during the copy process.
...
> The usb disk is ntfs formatted (because I need it also to be 
> accessible in Windows), so all data is going through the mount.ntfs-3g 
> driver.

Some users have already reported this when writing to an ntfs partition. 
It seems to be a problem with the ntfs-3g driver or format. See for 
example the following message:

"NTFS-3g eating 100%. Solved by switching to ext3"
https://lists.gnu.org/archive/html/bug-ddrescue/2009-06/msg00004.html


Best regards,
Antonio.