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Re: [Bug-ddrescue] Request for an Especific Clone Direction Option

From: Antonio Diaz Diaz
Subject: Re: [Bug-ddrescue] Request for an Especific Clone Direction Option
Date: Thu, 22 May 2014 20:13:44 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905

Hello Scott,

Scott Dwyer wrote:
I was not too long ago doing some benchmarking with different versions and options, and can say that I have seen some very nasty plots of the head bouncing all over the place.

Splitting the blocks of a drive with more than (logfile_size / 2) errors tends to be "bouncy", but I am working to make the accesses more linear.

I know one thing that helps is to increase the logfile-size option.

This is why I have multiplied by ten the default value of logfile-size.

But I do agree that some of us would like more control,
and are sometimes unsure of how to properly use the options to get it.

I guess we need to discover the way of getting such control while still providing a default algorithm good enough for all devices.

Antonio, I did just finally do a quick benchmark of 1.18-rc1 and do not have any anomalies to report.

Thanks for the feedback. :-)

Best regards,

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