simd-lite
Improve alignment
Benchmark for e9fee9f
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 90.9±1.42µs | 90.9±3.38µs | 0.00% |
| canada/simd_json::to_tape_with_buffers | 3.8±0.13ms | 3.7±0.14ms | -2.63% |
| citm_catalog/simd_json::to_tape_with_buffers | 1132.5±79.99µs | 1117.9±71.08µs | -1.29% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.6±0.20µs | 3.8±0.21µs | +5.56% |
| github_events/simd_json::to_tape_with_buffers | 40.1±0.89µs | 39.9±0.92µs | -0.50% |
| log/simd_json::to_tape_with_buffers | 1525.4±67.75ns | 1551.1±79.38ns | +1.68% |
| twitter/simd_json::to_tape_with_buffers | 435.5±25.71µs | 434.7±23.79µs | -0.18% |
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Benchmark for dabe1af
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 92.0±2.09µs | 92.0±2.05µs | 0.00% |
| canada/simd_json::to_tape_with_buffers | 3.8±0.18ms | 3.7±0.16ms | -2.63% |
| citm_catalog/simd_json::to_tape_with_buffers | 1147.1±83.80µs | 1128.3±87.86µs | -1.64% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.7±0.23µs | 3.9±0.26µs | +5.41% |
| github_events/simd_json::to_tape_with_buffers | 40.5±1.11µs | 40.9±1.12µs | +0.99% |
| log/simd_json::to_tape_with_buffers | 1588.5±89.25ns | 1584.0±107.70ns | -0.28% |
| twitter/simd_json::to_tape_with_buffers | 450.6±27.37µs | 444.6±23.26µs | -1.33% |
Benchmark for 00d086f
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 92.5±1.52µs | 92.1±1.62µs | -0.43% |
| canada/simd_json::to_tape_with_buffers | 3.7±0.12ms | 3.7±0.16ms | 0.00% |
| citm_catalog/simd_json::to_tape_with_buffers | 1138.2±78.97µs | 1123.4±77.18µs | -1.30% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.8±0.24µs | 4.0±0.25µs | +5.26% |
| github_events/simd_json::to_tape_with_buffers | 40.9±1.06µs | 40.7±1.10µs | -0.49% |
| log/simd_json::to_tape_with_buffers | 1562.7±86.43ns | 1650.9±117.36ns | +5.64% |
| twitter/simd_json::to_tape_with_buffers | 440.6±30.38µs | 435.5±26.54µs | -1.16% |
Benchmark for a10a17e
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 90.7±1.52µs | 90.8±2.00µs | +0.11% |
| canada/simd_json::to_tape_with_buffers | 3.8±0.16ms | 3.6±0.17ms | -5.26% |
| citm_catalog/simd_json::to_tape_with_buffers | 1129.8±77.90µs | 1121.5±77.25µs | -0.73% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.7±0.24µs | 3.8±0.19µs | +2.70% |
| github_events/simd_json::to_tape_with_buffers | 40.4±2.19µs | 40.1±0.93µs | -0.74% |
| log/simd_json::to_tape_with_buffers | 1577.2±98.29ns | 1577.8±89.79ns | +0.04% |
| twitter/simd_json::to_tape_with_buffers | 447.7±27.47µs | 435.3±23.62µs | -2.77% |
Codecov Report
Attention: Patch coverage is 97.72727% with 1 line in your changes missing coverage. Please review.
Project coverage is 71.53%. Comparing base (
8a9169b) to head (3aad36b). Report is 174 commits behind head on main.
| Files with missing lines | Patch % | Lines |
|---|---|---|
| src/lib.rs | 96.77% | 1 Missing :warning: |
:exclamation: There is a different number of reports uploaded between BASE (8a9169b) and HEAD (3aad36b). Click for more details.
HEAD has 7 uploads less than BASE
Flag BASE (8a9169b) HEAD (3aad36b) 128bit 2 0 3 0 beef 2 0
Additional details and impacted files
@@ Coverage Diff @@
## main #387 +/- ##
===========================================
- Coverage 81.83% 71.53% -10.30%
===========================================
Files 32 51 +19
Lines 9992 12340 +2348
===========================================
+ Hits 8177 8828 +651
- Misses 1815 3512 +1697
| Flag | Coverage Δ | |
|---|---|---|
? |
||
| 128bit | ? |
|
| beef | ? |
|
| unittests | 71.53% <97.72%> (?) |
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Benchmark for c0f9298
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 93.1±1.54µs | 92.3±1.35µs | -0.86% |
| canada/simd_json::to_tape_with_buffers | 3.9±0.14ms | 3.7±0.14ms | -5.13% |
| citm_catalog/simd_json::to_tape_with_buffers | 1145.9±83.24µs | 1124.9±92.25µs | -1.83% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.8±0.20µs | 4.0±0.22µs | +5.26% |
| github_events/simd_json::to_tape_with_buffers | 41.0±0.96µs | 41.5±0.98µs | +1.22% |
| log/simd_json::to_tape_with_buffers | 1597.1±94.00ns | 1585.5±99.97ns | -0.73% |
| twitter/simd_json::to_tape_with_buffers | 451.6±29.53µs | 444.1±25.44µs | -1.66% |
Benchmark for 97e1857
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 94.5±3.85µs | 93.9±3.39µs | -0.63% |
| canada/simd_json::to_tape_with_buffers | 3.8±0.18ms | 3.9±0.13ms | +2.63% |
| citm_catalog/simd_json::to_tape_with_buffers | 1161.0±85.07µs | 1147.2±84.52µs | -1.19% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.9±0.23µs | 4.1±0.26µs | +5.13% |
| github_events/simd_json::to_tape_with_buffers | 41.6±1.00µs | 41.5±1.17µs | -0.24% |
| log/simd_json::to_tape_with_buffers | 1630.9±108.37ns | 1708.4±180.21ns | +4.75% |
| twitter/simd_json::to_tape_with_buffers | 451.3±29.04µs | 450.2±28.02µs | -0.24% |
Benchmark for 9e4b729
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 91.2±2.14µs | 91.4±1.40µs | +0.22% |
| canada/simd_json::to_tape_with_buffers | 3.3±0.15ms | 3.3±0.09ms | 0.00% |
| citm_catalog/simd_json::to_tape_with_buffers | 1048.6±69.53µs | 1039.4±61.39µs | -0.88% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.7±0.23µs | 4.0±0.26µs | +8.11% |
| github_events/simd_json::to_tape_with_buffers | 40.5±1.07µs | 42.0±1.61µs | +3.70% |
| log/simd_json::to_tape_with_buffers | 1551.9±90.02ns | 1576.6±97.04ns | +1.59% |
| twitter/simd_json::to_tape_with_buffers | 427.3±39.71µs | 419.1±25.00µs | -1.92% |
Benchmark for bb4a1be
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 95.1±2.02µs | 93.0±1.66µs | -2.21% |
| canada/simd_json::to_tape_with_buffers | 3.3±0.16ms | 3.4±0.17ms | +3.03% |
| citm_catalog/simd_json::to_tape_with_buffers | 1077.1±75.96µs | 1067.0±72.56µs | -0.94% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.9±0.23µs | 4.2±0.28µs | +7.69% |
| github_events/simd_json::to_tape_with_buffers | 41.7±1.05µs | 42.2±1.32µs | +1.20% |
| log/simd_json::to_tape_with_buffers | 1622.2±112.87ns | 1618.5±117.66ns | -0.23% |
| twitter/simd_json::to_tape_with_buffers | 434.0±28.33µs | 427.0±28.81µs | -1.61% |
Benchmark for f0d7e5c
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 90.7±2.00µs | 92.8±1.25µs | +2.32% |
| canada/simd_json::to_tape_with_buffers | 3.3±0.17ms | 3.3±0.15ms | 0.00% |
| citm_catalog/simd_json::to_tape_with_buffers | 1060.8±76.54µs | 1048.9±68.67µs | -1.12% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.7±0.19µs | 4.0±0.25µs | +8.11% |
| github_events/simd_json::to_tape_with_buffers | 40.1±0.68µs | 41.1±1.03µs | +2.49% |
| log/simd_json::to_tape_with_buffers | 1572.5±99.80ns | 1553.2±94.26ns | -1.23% |
| twitter/simd_json::to_tape_with_buffers | 422.6±28.94µs | 418.1±24.79µs | -1.06% |
Benchmark for 2db3ddd
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| Test | Base | PR | % |
|---|---|---|---|
| apache_builds/simd_json::to_tape_with_buffers | 92.9±2.67µs | 92.2±2.31µs | -0.75% |
| canada/simd_json::to_tape_with_buffers | 3.3±0.15ms | 3.3±0.14ms | 0.00% |
| citm_catalog/simd_json::to_tape_with_buffers | 1072.0±81.37µs | 1059.0±71.49µs | -1.21% |
| event_stacktrace_10kb/simd_json::to_tape_with_buffers | 3.9±0.25µs | 4.0±0.25µs | +2.56% |
| github_events/simd_json::to_tape_with_buffers | 41.4±1.39µs | 41.5±1.35µs | +0.24% |
| log/simd_json::to_tape_with_buffers | 1576.0±96.37ns | 1631.9±130.55ns | +3.55% |
| twitter/simd_json::to_tape_with_buffers | 429.0±29.77µs | 427.3±31.21µs | -0.40% |
While in theory I agree, the benchmarks kind of point to a different result while there are some that improve there are also some that quite noticeably degrade. The GitHub benchmarks are not a surefire way to determine exact numbers but if you look over all the runs the trend is showing a over all degradation not a improvement :( which is sad because it should be faster but CPUs and compilers are sneaky.
While in theory I agree, the benchmarks kind of point to a different result while there are some that improve there are also some that quite noticeably degrade. The GitHub benchmarks are not a surefire way to determine exact numbers but if you look over all the runs the trend is showing a over all degradation not a improvement :( which is sad because it should be faster but CPUs and compilers are sneaky.
There's only one big degradation which is log/simd_json::to_tape_with_buffers - the rest seems like measuring errors. I can help figure out what the compiler is doing...
If you look at all the benchmarks, both event_stacktrace_10kb/simd_json::to_tape_with_buffers and log/simd_json::to_tape_with_buffers both show quite consistent degradation but if this kind of thing excites you (I know it excites me :D those problems are awesome I sadly didn't have the time to dig lately) you are welcome to take it over. I suspect there is some fun low level fiddling involved here :)