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Joey Hess 2016-06-09 15:49:18 -04:00
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doc/todo/use_CoW_capability___40__e.g._cp_--reflink__41___while_adjust_--unlock.mdwn
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I might be wrong but given the observation that adjust --unlock took 26.04s user 33.95s system 31% cpu 3:12.36 total to finish operation on an annex (on smaug, btrfs filesystem) with a relatively small (~400) number of relatively large files, I guess no reflink copying was done. I might be wrong but given the observation that adjust --unlock took 26.04s user 33.95s system 31% cpu 3:12.36 total to finish operation on an annex (on smaug, btrfs filesystem) with a relatively small (~400) number of relatively large files, I guess no reflink copying was done.
[[!meta author="yoh"]] [[!meta author="yoh"]]
> [[dup|done]] --[[Joey]]

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doc/todo/use_CoW_capability___40__e.g._cp_--reflink__41___while_adjust_--unlock/comment_1_1663a02563e147d53ed57e58ef7fb9da._comment Normal file
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[[!comment format=mdwn
username="joey"
subject="""comment 1"""
date="2016-06-09T19:44:14Z"
content="""
Git's smudge interface requires git-annex to output the content to stdout;
git writes it to the file. So, git-annex does not have an opportunity to
efficiently copy the file.
(All file copies in git-annex use cp --reflink)
My proposed extended smudge interface at
<http://thread.gmane.org/gmane.comp.version-control.git/294425>
lets the smudge filter write the file to disk, and then git-annex could
use more efficient methods. Since this is already discussed in
[[todo/smudge]] I think I'll close this bug report as a duplicate.
"""]]