2020-08-10 18:06:42 +02:00
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# Channel Benchmark Results
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This documents lists several benchmark results for different platforms in order to
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identify performance regressions and improvements.
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The are measured using the command
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```
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> channel_bench_* <nsend> <nrec> <buflen> <nobj>
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nsend ... number of threads that push objects into the channel
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nrec .... number of threads that pop objects from the channel
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buflen .. length of channel buffer queue - `0` means unbuffered channel
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nobj .... number of objects to pass thru the channel
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```
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## AMD Ryzen 7 3800X, Ubuntu-20.04 x86_64
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10000000 Objects transfered, results in Objects/µs
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2020-08-15 11:20:51 +02:00
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| nsend | nrec | buflen | **V (gcc -O2)** | **V (clang)** | **V (tcc)** | **Go (glang)** | **Go (gccgo -O2)** |
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| :---: | :---:| :---: | :---: | :---: | :---: | :---: | :---: |
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2020-09-12 02:29:11 +02:00
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| 1 | 1 | 0 | 1.97 | 1.63 | 2.08 | 4.65 | 0.56 |
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| 1 | 1 | 100 | 3.05 | 2.29 | 1.93 | 18.90 | 6.08 |
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| 4 | 4 | 0 | 0.87 | 0.90 | 0.99 | 1.84 | 0.84 |
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| 4 | 4 | 100 | 3.35 | 3.07 | 2.92 | 7.43 | 3.71 |
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2020-08-15 11:20:51 +02:00
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## AMD Ryzen 7 3800X, Windows 10 2004 x64
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| nsend | nrec | buflen | **V (gcc -O2)** | **V (msvc /O2)** | **V (tcc)** | **Go (golang)** |
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| :---: | :---:| :---: | :---: | :---: | :---: | :---: |
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| 1 | 1 | 0 | 0.30 | 0.33 | 0.31 | 4.67 |
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| 1 | 1 | 100 | 1.76 | 2.05 | 1.76 | 23.31 |
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| 4 | 4 | 0 | 0.18 | 0.19 | 0.19 | 1.38 |
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| 4 | 4 | 100 | 2.54 | 2.32 | 2.07 | 4.63 |
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2020-08-10 18:06:42 +02:00
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## Raspberry Pi 3B+, Void Linux musl 32 bit
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10000000 Objects transfered, results in Objects/µs
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| nsend | nrec | buflen | **V (gcc -O2)** | **Go (glang)** |
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| :---: | :---:| :---: | :---: | :---: |
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| 1 | 1 | 0 | 0.37 | 0.21 |
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| 1 | 1 | 100 | 1.03 | 0.74 |
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| 4 | 4 | 0 | 0.04 | 0.38 |
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| 4 | 4 | 100 | 2.78 | 2.63 |
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| 2 | 2 | 0 | 0.05 | 0.38 |
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| 2 | 2 | 100 | 1.26 | 0.75 |
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