[nsd-users] [NLnet Labs Maintainers] NSD 4.10.0rc1 pre-release

[Anand Buddhdev]

Hi Jeroen,

I've built this RC on Oracle Linux 9, and it compiled without any errors or
warnings. Configured a test virtual server with 449 primary zones (a mix of
small and big, signed and unsigned). NSD 4.9.1 takes 26s to load all the
zones (measured over 2 runs). NSD 4.10.0rc1 takes 13s to load them (also
measured over 2 runs). Not bad.

Regards,
Anand Buddhdev
RIPE NCC

On Thu, 25 Apr 2024 at 16:44, Jeroen Koekkoek via maintainers <
maintainers at lists.nlnetlabs.nl> wrote:

> NSD 4.10.0rc1 is available:
>
> https://nlnetlabs.nl/downloads/nsd/nsd-4.10.0rc1.tar.gz
> sha256 ad476e82eee5bdabc985e071cabe6a68263dd02eac6278ce2f81798b8c08f19f
> pgp https://nlnetlabs.nl/downloads/nsd/nsd-4.10.0rc1.tar.gz.asc
>
> Version 4.10.0 integrates simdzone and drops the Flex+Bison zone
> parser.
>
> NSD used a Flex+Bison based zone parser since version 1.4.0. The parser
> served NSD well, but zones have increased in size and zone loading
> performance has been problematic for some users.
>
> With the integration of simdzone
> (https://github.com/NLnetLabs/simdzone),
> performance of loading zones and IXFRs is drastically improved. Quick
> measurements show improvements ranging anywhere from 3.8x to 1.6x,
> depending on zone size and database type, though the improvements will
> be less noticable for NSEC3 zones due to pre-hashing.
>
> simdzone leverages SIMD instructions in modern CPUs to improve
> throughput. Right now SSE4.2 and AVX2 instruction sets are supported,
> other instruction sets will use the fallback implementation, which
> still is a decent improvement over the Flex+Bison based parser.
>
> The release candidate window will be longer this time as simdzone is
> rather new and while it has been tested on various architectures and
> operating systems, it is likely problems will pop-up due to sheer
> amount of code. Please consider giving this release candidate a good
> run and report any problems.
>
> 4.10.0
> ================
> FEATURES:
> - Merge #278: Replace Flex+Bison based zone parser with simdzone.
>    Performance of loading zones and IXFRs is greatly improved by using
>    the simdzone project by NLnet Labs. The optimized presentation
>    format parser leverages SIMD instructions in modern CPUs to improve
>    throughput. Right now SSE4.2 and AVX2 instruction sets are
>    supported, other instruction sets will use the fallback
>    implementation, which still is a decent improvement over the
>    Flex+Bison based parser.
>
> BUG FIXES:
> - Fix that when the server truncates the pidfile, it does not follow
>    symbolic links.
> - Fix #317: nsd should not chown its PID file.
> - For #317: Modify nsd service script to stop NSD from creating a pid
>    file that systemd is not using.
> - Fix #324: Clarify the purpose of contrib/bug390.patch.
> - Fix IXFR requests upstream for zones with a long name. Thanks for the
>    report to Yuuki Wakisaka from Internet Initiative Japan Inc.
> - Unit test for dname subdomain test used by xfrd-tcp.c.
> - Fix #329: TCP accept queues number.
> - Fix that the reload handler for sigchild uses signal_add, and also
>    that the signal handler is restored when done.
> - Fix that when server verify is done it resets the sigchild handler.
> - Fix makedist.sh for simdzone inclusion.
> - Fix makedist.sh to remove simdzone git tracking information and
>    scripting temporaries from tarball.
> - Fix error output of makedist.sh.
> - Use simdzone version with name parser fix.
> - Bump simdzone version to fix OpenBSD build issues.
>
> Best regards, Jeroen
> _______________________________________________
> maintainers mailing list
> maintainers at lists.nlnetlabs.nl
> https://lists.nlnetlabs.nl/mailman/listinfo/maintainers
>
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