[Bug 222377] ZFS ABD wasteful...

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222377

--- Comment #8 from Sean Chittenden <seanc at FreeBSD.org> ---
And to follow up with my own comment from
https://reviews.freebsd.org/D12396#293994

It's worth pointing out that we eventually abandoned this change and went back
to a 4K ABD chunk size. So while1K may have been more memory efficient in the
short term, it ended up being suboptimal in the long run. I'm abandoning this
issue and hoping no one repeats our lessons.

https://github.com/joyent/illumos-joyent/commit/2bd6ca8c3cc70becca5f99bbf557b70ac3dfdaf7
https://smartos.org/bugview/OS-6387
https://smartos.org/bugview/OS-6363

Allocator-native chunk sizes will probably always be better with regards to
long-term memory fragmentation.

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