Thread (102 messages) 102 messages, 22 authors, 2013-12-01

Re: Triple parity and beyond

From: Andrea Mazzoleni <hidden>
Date: 2013-11-20 18:34:53
Also in: linux-btrfs

Hi David,
quoted
The choice of ZFS to use powers of 4 was likely not optimal,
because to multiply by 4, it has to do two multiplications by 2.
I can agree with that.  I didn't copy ZFS's choice here
David, it was not my intention to suggest that you copied from ZFS.
Sorry to have expressed myself badly. I just mentioned ZFS because it's
an implementation that I know uses powers of 4 to generate triple
parity, and I saw in the code that it's implemented with two multiplication
by 2.

Ciao,
Andrea
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