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perf(udp): multi-message receive on apple #2302

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perf(udp): multi-message receive on apple #2302

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mxinden
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@mxinden mxinden commented Dec 23, 2024

Do multi-message receive via quinn-rs/quinn#1993 on apple platforms.

Work in progress!

Early benchmarks show ~11% performance improvement in the Download benchmark.

$ critcmp main mmsg                                              
group                                         main                                   mmsg
-----                                         ----                                   ----
1-conn/1-100mb-resp (aka. Download)/client    1.11   790.5±12.51ms   126.5 MB/sec    1.00   711.5±31.65ms   140.5 MB/sec

Fixes #2279.

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Failed Interop Tests

QUIC Interop Runner, client vs. server, differences relative to bb45c74.

neqo-latest as client

neqo-latest as server

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QUIC Interop Runner, client vs. server

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@mxinden mxinden changed the title feat(udp): multi-message receive on apple perf(udp): multi-message receive on apple Dec 23, 2024
martinthomson
martinthomson reviewed Dec 24, 2024
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neqo-udp/src/lib.rs
target_os = "tvos",
target_os = "visionos"
))]
const BATCH_SIZE: usize = 32;
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Needs some commentary about why there is a split and what the benefits of the additional allocation are. 2MB is fine, but knowing why is important.

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@martinthomson martinthomson martinthomson left review comments

@KershawChang KershawChang Awaiting requested review from KershawChang KershawChang will be requested when the pull request is marked ready for review KershawChang is a code owner

@larseggert larseggert Awaiting requested review from larseggert larseggert will be requested when the pull request is marked ready for review larseggert is a code owner

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perf(udp): enable multi-message IO on apple
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@mxinden @martinthomson