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→Data deduplication: link to a separate article
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After creation of such stack of images some data would get duplication in dumps. If you don't want to keep duplicates there's an ability to punch duplicate data from non-top images. There are two options for this.+
−=== Deduplication action ===
−The <code>criu dedup</code> command opens the image directory and punch holes in the ''parent'' images where ''child'' images would replace them.
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−=== Automatic deduplication while dumping ===
−The <code>--auto-dedup</code> option would cause every write to images with process' pages to go an punch holes in respective parent images.
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−This option applies to both <code>dump</code> and <code>page-server</code> actions and thus is extremely useful in [[disk-less migration]] scenario.
== Data deduplication ==
== Data deduplication ==
−See [[memory images deduplication]].
−== See also ==
== See also ==