Re: pglz performance

From: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>
To: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
Cc: Gasper Zejn <zejn(at)owca(dot)info>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: pglz performance
Date: 2019-10-25 05:05:13
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> 21 окт. 2019 г., в 14:09, Andrey Borodin <x4mmm(at)yandex-team(dot)ru> написал(а):
> With Silesian corpus pglz_decompress_hacked is actually decreasing performance on high-entropy data.
> Meanwhile pglz_decompress_hacked8 is still faster than usual pglz_decompress.
> In spite of this benchmarks, I think that pglz_decompress_hacked8 is safer option.

Here's v3 which takes into account recent benchmarks with Silesian Corpus and have better comments.


Andrey Borodin
Open source RDBMS development team leader

Attachment Content-Type Size
v3-0001-Use-memcpy-in-pglz-decompression.patch application/octet-stream 3.4 KB

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