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Don't dump pages which only contain zero bytes #2331

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Don't dump pages which only contain zero bytes #2331

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Commits on Jan 24, 2024

  1. Don't dump pages which only contain zero bytes 

    Introduces a new command line option '--skip-zero-bytes'
which detects pages which only contain zero bytes and
prohibits that they get dumped in the processes image file.
It is a potentially expensive operation because it checks for
every single process page if it contains only zeros, but
it can significantly decrease the image size and improve the
startup-time if many such pages exist. It effectively
replaces such pages which the kernel's zero-page on restore.

Signed-off-by: Volker Simonis <[email protected]>
    @simonis
    simonis committed Jan 24, 2024
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