Linux performance bug: fsync() for files with zero links

Victor Porton porton at
Sat Feb 25 00:32:51 UTC 2006

Linux kernel (as of has the following performance bug:

Syncing (fsync() or fdatasync()) files with zero links (deleted files) in not
no-op, as it should be.

See details, a test C program, and the rationale in the URL below:

In the article with the URL above it is also explained how to make much more
efficient /tmp directory when this bug will be fixed.

Somebody please make a patch.

Victor Porton (porton at -

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