scrub-2.5.1 released

[Jim Garlick]

scrub-2.5.1 is available for download at 

http://code.google.com/p/diskscrub/

Thanks to some nice submissions from the community, this version has performance

improvements and a new custom pattern option.

Regards,

Jim Garlick

Lawrence Livermore National Laboratory

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scrub-2.5.1 Release Notes                                     2012-05-08

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* Cosmetic changes to man page and help output.

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scrub-2.5.0 Release Notes                                     2012-05-03

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* Generate randomness and do I/O in parallel [Richard B. Hill]

* Replace O_SYNC with O_DIRECT+fsync+posix_fadvise [H. Peter Anvin]

  This produces a significant performance improvement, at least on Linux.

* Add support for RDRAND instr. [H. Peter Anvin]

* Use <stdbool.h> if the system has it [H. Peter Anvin]

* Fix incorrect assertion in scrub --dirent handling (issue 9) [Peter Hyman]

* Clean up tmp files after scrub --freespace (issue 9) [Peter Hyman]

* Allow scrub --pattern=custom="string" (issue 11) [Peter Hyman]

  Allow C style numerical escapes in string: \nnn (octal) and \xnn (hex).

  This is a single-pass sequence with a custom pattern.

* Change default buffer size from 1m to 4m [H. Peter Anvin]

* Avoid closing and re-opening /dev/urandom [H. Peter Anvin]