Re: [Bug-ddrescue] Suggestion to improve recovery rate during splitting phase.

[Antonio Diaz Diaz]

Hello Robert,

Robert Backhaus wrote:
> The only change I'd like to make is to bias ddrescue toward splitting or
> trimming the large blocks first. It is annoying to see it working on small
> blocks, which are unlikely to contain whole files, when you know there are
> several hundred megabyte blocks waiting for attention.

As I said before, the main reason for not doing this before is logfile 
size. Take into account that the whole logfile is written and synced to 
disk at most every 5 minutes. If the logfile grows large enough, 
ddrescue will spent a significant amount of time writing it instead of 
rescuing data.

Older versions of ddrescue did save the logfile to disk every 30 
seconds, and this interval proved to be too short for large logfiles.

But after I have implemented the option limiting logfile size, I plan to 
change ddrescue to trim and split the large blocks first.


Regards,
Antonio.