Your message dated Mon, 11 Jan 2021 13:26:31 +0000
with message-id <e1kyxdl-0005zh...@fasolo.debian.org>
and subject line Bug#977345: fixed in xxhash 0.8.0-2
has caused the Debian Bug report #977345,
regarding libxxhash built without hw-accelerated XXH3, 50% performance loss
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
977345: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977345
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: src:xxhash
Version: 0.8.0-1
Severity: normal
XXH3 supports various hardware-accelerated variants in
xxh_x86dispatch.{c,h}, which are currently not built into the library.
This means that it only operates at roughly half the speed on my Core
i5-8250U compared to the AVX2-accelerated variant.
The implementation is odd: Client code explcitly has to use the
xxh_x86dispatch.h header instead of the xxhash.h one. It would be more
convenient if any code that includes xxhash.h on x86 automatically
benefits from dispatched optimized code.
At the bare minimum, on x86, export DIGEST=1 when building and install
xxh_x86dispatch.h header. I'd love to see the xxh_x86dispatch.h also
replace the xxhash.h header on x86 (still keeping xxh_x86dispatch.h in
case people look for it) such that clients can directly benefit from it
even if they do not handle looking up that header and using it.
-- System Information:
Debian Release: bullseye/sid
APT prefers hirsute
APT policy: (991, 'hirsute'), (500, 'hirsute'), (500, 'groovy-updates'),
(500, 'groovy-security')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.8.0-32-generic (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to
C.UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
--
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--- End Message ---
--- Begin Message ---
Source: xxhash
Source-Version: 0.8.0-2
Done: Norbert Preining <norb...@preining.info>
We believe that the bug you reported is fixed in the latest version of
xxhash, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 977...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Norbert Preining <norb...@preining.info> (supplier of updated xxhash package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Mon, 11 Jan 2021 21:57:57 +0900
Source: xxhash
Architecture: source
Version: 0.8.0-2
Distribution: unstable
Urgency: medium
Maintainer: Norbert Preining <norb...@preining.info>
Changed-By: Norbert Preining <norb...@preining.info>
Closes: 977345 979758
Changes:
xxhash (0.8.0-2) unstable; urgency=medium
.
* Use hardware-accelerated XXH3 computation on x86 architecture, and
install the hardware-accelerating header file.
Thanks to Julian Andres Klode. (Closes: #977345)
* Cherry-pick upstream: Fix empty version in .pc file (Closes: #979758)
Checksums-Sha1:
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ad48ecf4f560d2913e98dd7f799a820843d6882a 4160 xxhash_0.8.0-2.debian.tar.xz
f9a7fd3fcc10cedbad7703161107e95641ccd38e 6152 xxhash_0.8.0-2_source.buildinfo
Checksums-Sha256:
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xxhash_0.8.0-2.dsc
5c427c2c08019a945412afac02326a24c72b65a83bff59447009db303233aecd 4160
xxhash_0.8.0-2.debian.tar.xz
575014ec3f2637463ecc71370bbd9261c7989bfa23ed20f0fbeef5089397a459 6152
xxhash_0.8.0-2_source.buildinfo
Files:
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1558d7b4f99c39a3e94e6a760dc4368a 4160 utils optional
xxhash_0.8.0-2.debian.tar.xz
4a618b27e449c58e301d4469d79f3d54 6152 utils optional
xxhash_0.8.0-2_source.buildinfo
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--- End Message ---
