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Re: [alpine-user] FYI: community/zstd binary much (up to 4x) slower than necessary

From: Cág <ca6c_at_bitmessage.ch>
Date: Tue, 13 Mar 2018 21:13:23 +0000

Steffen Nurpmeso wrote:

> Hello, for your possible interest.
>
> In a thead for the LUGA(ustria) i eventually had to time some
> compression algorithms and wondered why zstd is so slow, but
> especially so the decompressing stage, which a key feature of this
> one. It turns out that the -Os compilation causes, well, drama-
> tical performance degradation. I compiled my own with -O3 and the
> difference is up to factor four. Just one example:

What about -O2? Also what are the differences in binary sizes? Are you
using gcc? If yes, try clang.

--
caóc
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Received on Tue Mar 13 2018 - 21:13:23 GMT