[issue34043] Optimize tarfile uncompression performance

Change by INADA Naoki : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___ P

[issue34043] Optimize tarfile uncompression performance

INADA Naoki added the comment: New changeset 8d130913cb9359c01de412178f9942419e921170 by INADA Naoki in branch 'master': bpo-34043: Optimize tarfile uncompress performance (GH-8089) https://github.com/python/cpython/commit/8d130913cb9359c01de412178f9942419e921170 -- ___

[issue34043] Optimize tarfile uncompression performance

Change by Serhiy Storchaka : -- nosy: +lars.gustaebel, serhiy.storchaka ___ Python tracker ___ ___ Python-bugs-list mailing list Uns

[issue34043] Optimize tarfile uncompression performance

New submission from INADA Naoki : tarfile._Stream has two buffer for compressed and uncompressed data. Those buffers are not aligned so unnecessary bytes slicing happens for every reading chunks. This commit bypass compressed buffering. In this benchmark [1], user time become 250ms from 300ms.

[issue34043] Optimize tarfile uncompression performance

Change by INADA Naoki : -- keywords: +patch pull_requests: +7690 stage: -> patch review ___ Python tracker ___ ___ Python-bugs-list

[issue34043] Optimize tarfile uncompression performance

Change by INADA Naoki : -- components: Library (Lib) nosy: inada.naoki priority: normal severity: normal status: open title: Optimize tarfile uncompression performance type: performance versions: Python 3.8 ___ Python tracker