chore(mtu): prepare v0.3.0 release by mxinden · Pull Request #3286 · mozilla/neqo

mxinden · 2025-12-18T15:57:43Z

Would allow quinn-rs/quinn#2465 to depend on the latest mtu crate version.

Copilot

Pull request overview

This PR bumps the mtu crate version from 0.2.9 to 0.3.0, enabling external projects (specifically quinn-rs/quinn) to depend on the latest release.

Version bump from 0.2.9 to 0.3.0 in the mtu crate

codecov · 2025-12-18T16:04:56Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.84%. Comparing base (4f38c91) to head (bb910b9).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3286      +/-   ##
==========================================
+ Coverage   93.73%   93.84%   +0.11%     
==========================================
  Files         125      124       -1     
  Lines       37134    37239     +105     
  Branches    37134    37239     +105     
==========================================
+ Hits        34807    34947     +140     
+ Misses       1470     1427      -43     
- Partials      857      865       +8

Components	Coverage Δ
neqo-common	`98.48% <ø> (+0.35%)`	⬆️
neqo-crypto	`84.39% <ø> (+0.71%)`	⬆️
neqo-http3	`93.86% <ø> (+0.19%)`	⬆️
neqo-qpack	`94.47% <ø> (ø)`
neqo-transport	`94.63% <ø> (+0.01%)`	⬆️
neqo-udp	`82.42% <ø> (-0.42%)`	⬇️
mtu	`88.94% <ø> (ø)`

codspeed-hq · 2025-12-18T16:06:40Z

CodSpeed Performance Report

Merging #3286 will degrade performances by 4.32%

_{Comparing mxinden:mtu-v0.3.0 (bb910b9) with main (e74f986)¹}

Summary

⚡ 2 improvements
❌ 2 regressions
✅ 19 untouched

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Mode	Benchmark	`BASE`	`HEAD`	Change
⚡	Simulation	`client`	891.3 ms	840.3 ms	+6.07%
⚡	Simulation	`client`	816.2 ms	668.1 ms	+22.16%
❌	Simulation	`wallclock-time`	32.3 ms	33.3 ms	-3.21%
❌	Simulation	`coalesce_acked_from_zero 1000+1 entries`	2.6 µs	2.7 µs	-4.32%

No successful run was found on main (819f23b) during the generation of this report, so e74f986 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

github-actions · 2025-12-18T16:26:49Z

Client/server transfer results

Performance differences relative to 819f23b.

Transfer of 33554432 bytes over loopback, min. 100 runs. All unit-less numbers are in milliseconds.

Client vs. server (params)	Mean ± σ	Min	Max	MiB/s ± σ	Δ `main`	Δ `main`
neqo-neqo-newreno	95.8 ± 4.4	88.2	103.3	334.1 ± 7.3	💚 -2.4	-2.4%
neqo-quiche-cubic	192.6 ± 5.1	186.2	208.4	166.2 ± 6.3	💔 1.7	0.9%
quiche-neqo-cubic	153.6 ± 5.1	145.5	181.2	208.3 ± 6.3	💔 2.7	1.8%

Table above only shows statistically significant changes. See all results below.

All results

Transfer of 33554432 bytes over loopback, min. 100 runs. All unit-less numbers are in milliseconds.

Client vs. server (params)	Mean ± σ	Min	Max	MiB/s ± σ	Δ `main`	Δ `main`
google-google-nopacing	444.2 ± 4.0	438.9	454.9	72.0 ± 8.0
google-neqo-cubic	272.4 ± 4.9	265.4	292.4	117.5 ± 6.5	-0.9	-0.3%
msquic-msquic-nopacing	199.3 ± 74.5	142.4	537.0	160.6 ± 0.4
msquic-neqo-cubic	198.2 ± 42.9	145.5	396.8	161.5 ± 0.7	-1.7	-0.8%
neqo-google-cubic	743.3 ± 4.6	736.2	756.2	43.0 ± 7.0	0.9	0.1%
neqo-msquic-cubic	159.6 ± 4.5	151.9	168.2	200.5 ± 7.1	0.2	0.1%
neqo-neqo-cubic	97.4 ± 4.4	88.5	107.3	328.5 ± 7.3	-1.2	-1.2%
neqo-neqo-cubic-nopacing	96.8 ± 4.0	88.9	105.3	330.5 ± 8.0	0.3	0.3%
neqo-neqo-newreno	95.8 ± 4.4	88.2	103.3	334.1 ± 7.3	💚 -2.4	-2.4%
neqo-neqo-newreno-nopacing	94.8 ± 4.2	86.8	104.6	337.5 ± 7.6	-1.0	-1.0%
neqo-quiche-cubic	192.6 ± 5.1	186.2	208.4	166.2 ± 6.3	💔 1.7	0.9%
neqo-s2n-cubic	221.1 ± 4.3	213.0	231.4	144.8 ± 7.4	0.9	0.4%
quiche-neqo-cubic	153.6 ± 5.1	145.5	181.2	208.3 ± 6.3	💔 2.7	1.8%
quiche-quiche-nopacing	141.7 ± 4.2	135.5	155.1	225.8 ± 7.6
s2n-neqo-cubic	173.8 ± 4.6	165.1	184.3	184.1 ± 7.0	0.1	0.1%
s2n-s2n-nopacing	252.1 ± 33.0	233.1	349.5	126.9 ± 1.0

Download data for profiler.firefox.com or download performance comparison data.

github-actions · 2025-12-18T16:33:18Z

Benchmark results

Significant performance differences relative to 819f23b.

1-conn/1-100mb-resp/mtu-1504 (aka. Download)/client: 💚 Performance has improved by -2.5413%.

       time:   [201.29 ms 201.75 ms 202.32 ms]
       thrpt:  [494.28 MiB/s 495.65 MiB/s 496.79 MiB/s]
change:
       time:   [-2.8288% -2.5413% -2.2171] (p = 0.00 < 0.05)
       thrpt:  [+2.2673% +2.6075% +2.9112]
       Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
1 (1.00%) high mild
3 (3.00%) high severe

All results

1-conn/1-100mb-resp/mtu-1504 (aka. Download)/client: 💚 Performance has improved by -2.5413%.

       time:   [201.29 ms 201.75 ms 202.32 ms]
       thrpt:  [494.28 MiB/s 495.65 MiB/s 496.79 MiB/s]
change:
       time:   [-2.8288% -2.5413% -2.2171] (p = 0.00 < 0.05)
       thrpt:  [+2.2673% +2.6075% +2.9112]
       Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
1 (1.00%) high mild
3 (3.00%) high severe

1-conn/10_000-parallel-1b-resp/mtu-1504 (aka. RPS)/client: No change in performance detected.

       time:   [281.31 ms 283.26 ms 285.23 ms]
       thrpt:  [35.059 Kelem/s 35.303 Kelem/s 35.548 Kelem/s]
change:
       time:   [-0.7321% +0.2346% +1.1529] (p = 0.63 > 0.05)
       thrpt:  [-1.1397% -0.2341% +0.7375]
       No change in performance detected.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild

1-conn/1-1b-resp/mtu-1504 (aka. HPS)/client: No change in performance detected.

       time:   [38.555 ms 38.721 ms 38.907 ms]
       thrpt:  [25.702   B/s 25.826   B/s 25.937   B/s]
change:
       time:   [-0.8060% -0.0839% +0.6401] (p = 0.82 > 0.05)
       thrpt:  [-0.6360% +0.0840% +0.8125]
       No change in performance detected.
Found 9 outliers among 100 measurements (9.00%)
1 (1.00%) low mild
1 (1.00%) high mild
7 (7.00%) high severe

1-conn/1-100mb-req/mtu-1504 (aka. Upload)/client: Change within noise threshold.

       time:   [206.96 ms 207.26 ms 207.57 ms]
       thrpt:  [481.76 MiB/s 482.48 MiB/s 483.18 MiB/s]
change:
       time:   [-0.9861% -0.7498% -0.5232] (p = 0.00 < 0.05)
       thrpt:  [+0.5260% +0.7555% +0.9959]
       Change within noise threshold.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild

decode 4096 bytes, mask ff: No change in performance detected.

       time:   [4.4968 µs 4.5042 µs 4.5123 µs]
       change: [-0.2214% +0.1680% +0.6073] (p = 0.45 > 0.05)
       No change in performance detected.
Found 6 outliers among 100 measurements (6.00%)
2 (2.00%) high mild
4 (4.00%) high severe

decode 1048576 bytes, mask ff: No change in performance detected.

       time:   [1.1588 ms 1.1607 ms 1.1628 ms]
       change: [-0.9772% -0.0150% +0.9359] (p = 0.97 > 0.05)
       No change in performance detected.
Found 11 outliers among 100 measurements (11.00%)
11 (11.00%) high severe

decode 4096 bytes, mask 7f: No change in performance detected.

       time:   [5.7820 µs 5.7902 µs 5.7996 µs]
       change: [-0.8503% -0.2694% +0.1930] (p = 0.35 > 0.05)
       No change in performance detected.
Found 22 outliers among 100 measurements (22.00%)
22 (22.00%) high severe

decode 1048576 bytes, mask 7f: Change within noise threshold.

       time:   [1.4759 ms 1.4783 ms 1.4808 ms]
       change: [-0.8173% -0.5876% -0.3530] (p = 0.00 < 0.05)
       Change within noise threshold.

decode 4096 bytes, mask 3f: No change in performance detected.

       time:   [5.5384 µs 5.5473 µs 5.5564 µs]
       change: [-0.1307% +0.1440% +0.4487] (p = 0.34 > 0.05)
       No change in performance detected.
Found 5 outliers among 100 measurements (5.00%)
2 (2.00%) high mild
3 (3.00%) high severe

decode 1048576 bytes, mask 3f: No change in performance detected.

       time:   [1.4153 ms 1.4176 ms 1.4201 ms]
       change: [-0.1828% +0.0429% +0.2662] (p = 0.71 > 0.05)
       No change in performance detected.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild

1-streams/each-1000-bytes/wallclock-time: Change within noise threshold.

       time:   [585.16 µs 589.02 µs 594.01 µs]
       change: [+0.1001% +0.9195% +1.8712] (p = 0.04 < 0.05)
       Change within noise threshold.
Found 10 outliers among 100 measurements (10.00%)
1 (1.00%) low mild
9 (9.00%) high severe

1-streams/each-1000-bytes/simulated-time: No change in performance detected.

       time:   [118.84 ms 119.08 ms 119.32 ms]
       thrpt:  [8.1847 KiB/s 8.2011 KiB/s 8.2173 KiB/s]
change:
       time:   [-0.0578% +0.2081% +0.4812] (p = 0.14 > 0.05)
       thrpt:  [-0.4789% -0.2076% +0.0579]
       No change in performance detected.

1000-streams/each-1-bytes/wallclock-time: Change within noise threshold.

       time:   [12.416 ms 12.470 ms 12.539 ms]
       change: [+0.0769% +0.6746% +1.2681] (p = 0.03 < 0.05)
       Change within noise threshold.
Found 4 outliers among 100 measurements (4.00%)
1 (1.00%) low mild
2 (2.00%) high mild
1 (1.00%) high severe

1000-streams/each-1-bytes/simulated-time: No change in performance detected.

       time:   [2.3285 s 2.3320 s 2.3355 s]
       thrpt:  [428.17   B/s 428.82   B/s 429.46   B/s]
change:
       time:   [-0.2315% -0.0225% +0.1977] (p = 0.84 > 0.05)
       thrpt:  [-0.1973% +0.0225% +0.2320]
       No change in performance detected.
Found 2 outliers among 100 measurements (2.00%)
1 (1.00%) low mild
1 (1.00%) high mild

1000-streams/each-1000-bytes/wallclock-time: Change within noise threshold.

       time:   [50.007 ms 50.119 ms 50.230 ms]
       change: [-1.1111% -0.7850% -0.4640] (p = 0.00 < 0.05)
       Change within noise threshold.

1000-streams/each-1000-bytes/simulated-time: No change in performance detected.

       time:   [15.970 s 16.189 s 16.408 s]
       thrpt:  [59.516 KiB/s 60.323 KiB/s 61.150 KiB/s]
change:
       time:   [-2.0894% +0.0190% +2.1790] (p = 0.98 > 0.05)
       thrpt:  [-2.1326% -0.0190% +2.1340]
       No change in performance detected.

coalesce_acked_from_zero 1+1 entries: No change in performance detected.

       time:   [89.367 ns 89.769 ns 90.226 ns]
       change: [-0.1154% +0.8588% +2.2250] (p = 0.15 > 0.05)
       No change in performance detected.
Found 11 outliers among 100 measurements (11.00%)
7 (7.00%) high mild
4 (4.00%) high severe

coalesce_acked_from_zero 3+1 entries: No change in performance detected.

       time:   [106.13 ns 106.51 ns 106.89 ns]
       change: [-4.8284% -1.5247% +0.5863] (p = 0.41 > 0.05)
       No change in performance detected.
Found 15 outliers among 100 measurements (15.00%)
15 (15.00%) high severe

coalesce_acked_from_zero 10+1 entries: No change in performance detected.

       time:   [105.39 ns 105.80 ns 106.29 ns]
       change: [-0.3215% +0.2727% +0.9401] (p = 0.39 > 0.05)
       No change in performance detected.
Found 12 outliers among 100 measurements (12.00%)
2 (2.00%) low severe
2 (2.00%) low mild
1 (1.00%) high mild
7 (7.00%) high severe

coalesce_acked_from_zero 1000+1 entries: No change in performance detected.

       time:   [90.546 ns 90.660 ns 90.797 ns]
       change: [-0.2402% +0.2951% +0.8721] (p = 0.33 > 0.05)
       No change in performance detected.
Found 8 outliers among 100 measurements (8.00%)
6 (6.00%) high mild
2 (2.00%) high severe

RxStreamOrderer::inbound_frame(): Change within noise threshold.

       time:   [108.88 ms 108.98 ms 109.07 ms]
       change: [-1.1982% -1.0929% -0.9831] (p = 0.00 < 0.05)
       Change within noise threshold.

sent::Packets::take_ranges: No change in performance detected.

       time:   [4.4522 µs 4.5382 µs 4.6095 µs]
       change: [-4.4071% -0.3387% +3.2796] (p = 0.88 > 0.05)
       No change in performance detected.
Found 2 outliers among 100 measurements (2.00%)
2 (2.00%) high mild

transfer/pacing-false/varying-seeds/wallclock-time/run: Change within noise threshold.

       time:   [23.375 ms 23.399 ms 23.428 ms]
       change: [+0.0735% +0.2166% +0.3755] (p = 0.00 < 0.05)
       Change within noise threshold.
Found 6 outliers among 100 measurements (6.00%)
4 (4.00%) high mild
2 (2.00%) high severe

transfer/pacing-false/varying-seeds/simulated-time/run: No change in performance detected.

       time:   [23.941 s 23.941 s 23.941 s]
       thrpt:  [171.09 KiB/s 171.09 KiB/s 171.09 KiB/s]
change:
       time:   [+0.0000% +0.0000% +0.0000] (p = NaN > 0.05)
       thrpt:  [+0.0000% +0.0000% +0.0000]
       No change in performance detected.

transfer/pacing-true/varying-seeds/wallclock-time/run: No change in performance detected.

       time:   [23.648 ms 23.679 ms 23.728 ms]
       change: [-0.4471% -0.1890% +0.0591] (p = 0.15 > 0.05)
       No change in performance detected.
Found 3 outliers among 100 measurements (3.00%)
1 (1.00%) high mild
2 (2.00%) high severe

transfer/pacing-true/varying-seeds/simulated-time/run: No change in performance detected.

       time:   [23.676 s 23.676 s 23.676 s]
       thrpt:  [173.01 KiB/s 173.01 KiB/s 173.01 KiB/s]
change:
       time:   [+0.0000% +0.0000% +0.0000] (p = NaN > 0.05)
       thrpt:  [+0.0000% +0.0000% +0.0000]
       No change in performance detected.

transfer/pacing-false/same-seed/wallclock-time/run: Change within noise threshold.

       time:   [23.133 ms 23.159 ms 23.198 ms]
       change: [-2.4521% -2.3037% -2.1282] (p = 0.00 < 0.05)
       Change within noise threshold.
Found 4 outliers among 100 measurements (4.00%)
3 (3.00%) high mild
1 (1.00%) high severe

transfer/pacing-false/same-seed/simulated-time/run: No change in performance detected.

       time:   [23.941 s 23.941 s 23.941 s]
       thrpt:  [171.09 KiB/s 171.09 KiB/s 171.09 KiB/s]
change:
       time:   [+0.0000% +0.0000% +0.0000] (p = NaN > 0.05)
       thrpt:  [+0.0000% +0.0000% +0.0000]
       No change in performance detected.

transfer/pacing-true/same-seed/wallclock-time/run: Change within noise threshold.

       time:   [23.732 ms 23.750 ms 23.769 ms]
       change: [-0.9014% -0.7821% -0.6659] (p = 0.00 < 0.05)
       Change within noise threshold.
Found 10 outliers among 100 measurements (10.00%)
4 (4.00%) low mild
5 (5.00%) high mild
1 (1.00%) high severe

transfer/pacing-true/same-seed/simulated-time/run: No change in performance detected.

       time:   [23.676 s 23.676 s 23.676 s]
       thrpt:  [173.01 KiB/s 173.01 KiB/s 173.01 KiB/s]
change:
       time:   [+0.0000% +0.0000% +0.0000] (p = NaN > 0.05)
       thrpt:  [+0.0000% +0.0000% +0.0000]
       No change in performance detected.

Download data for profiler.firefox.com or download performance comparison data.

chore(mtu): prepare v0.3.0 release

bb910b9

mxinden commented Dec 18, 2025

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Comment thread mtu/Cargo.toml

mxinden marked this pull request as ready for review December 18, 2025 15:59

mxinden requested review from KershawChang, larseggert and martinthomson as code owners December 18, 2025 15:59

Copilot AI review requested due to automatic review settings December 18, 2025 15:59

Copilot AI reviewed Dec 18, 2025

View reviewed changes

larseggert approved these changes Dec 18, 2025

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larseggert enabled auto-merge December 19, 2025 07:46

larseggert added this pull request to the merge queue Dec 19, 2025

Merged via the queue into mozilla:main with commit 90260a3 Dec 19, 2025
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chore(mtu): prepare v0.3.0 release#3286

chore(mtu): prepare v0.3.0 release#3286
larseggert merged 1 commit into
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Codecov Report

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CodSpeed Performance Report

Merging #3286 will degrade performances by 4.32%

Summary

Benchmarks breakdown

Footnotes

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Client/server transfer results

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Benchmark results

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