Okay the above tests are invalid. My function pointers weren't bound to the correct functions so there were different workloads. I'm glad this was the case because I wouldn't have a good explanation for the significant difference in performance.
Feed All Stories
Thu, Nov 28
Thu, Nov 28
Nov 23 2024
Nov 23 2024
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker changed the header image for post Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker changed the header image for post Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
0xseantasker updated the post content for Blog Post: Poor desktop frame rate using KDE Neon with Wayland on NVIDIA.
Sep 15 2024
Sep 15 2024
0xseantasker added a comment to P19 Sean::function.
These tests were run because I use std function a fair bit and was curious about the performance overhead. I've usually assumed it did some compile time switching around which would have resulted in a near 1:1 with a regular call, but quite obviously that isn't what is happening. This might be because of bind getting in the way and causing some remapping overheads. But for functions that are 1:1 mapped I would expect the implementation to result in a solution that was near to what I have done.
0xseantasker added a comment to P19 Sean::function.
| ns/op | op/s | err% | total | benchmark |--------------------:|--------------------:|--------:|----------:|:---------- | 9.03 | 110,738,754.20 | 3.0% | 2.54 | `base->Call()` | 5.28 | 189,366,926.98 | 3.7% | 1.50 | `a->Call()` | 4.83 | 207,105,530.39 | 2.4% | 1.36 | `b->Call()` | 11.85 | 84,358,606.01 | 2.2% | 3.33 | `function &Base::Call, base` | 9.00 | 111,051,549.44 | 2.7% | 2.53 | `function &A::Call, a` | 9.00 | 111,074,910.28 | 2.3% | 2.53 | `function &B::Call, b` | 11.37 | 87,932,375.07 | 2.4% | 3.19 | `boost function &Base::Call, base` | 7.31 | 136,868,309.00 | 2.3% | 2.05 | `boost function &A::Call, a` | 7.33 | 136,417,043.66 | 2.9% | 2.08 | `boost function &B::Call, b` | 10.21 | 97,977,654.63 | 2.3% | 2.85 | `function pointer direct base, &Base::Call ` | 6.63 | 150,734,756.40 | 2.6% | 1.87 | `function pointer direct a, &A::Call` | 6.88 | 145,364,737.50 | 3.1% | 1.93 | `function pointer direct b, &B::Call` | 6.19 | 161,458,499.84 | 3.0% | 1.73 | `Sean::function a|b, &A|B::Call` | 2.89 | 346,152,377.07 | 2.7% | 1.09 | `Sean::function a, &A::Call` | 2.93 | 341,304,113.06 | 2.7% | 1.10 | `Sean::function b, &B::Call` | 6.00 | 166,796,329.13 | 3.0% | 1.69 | `Sean::function direct a|b, &A|B::Call` | 2.90 | 344,292,303.07 | 2.6% | 1.07 | `Sean::function direct a, &A::Call` | 2.90 | 345,391,845.52 | 2.3% | 1.09 | `Sean::function direct b, &B::Call` | 7.22 | 138,497,211.74 | 1.8% | 2.00 | `Sean::function a|b, &A|B::CallParams` | 2.90 | 344,818,582.23 | 2.6% | 1.09 | `Sean::function a, &A::CallParams` | 3.02 | 331,334,448.80 | 2.5% | 1.12 | `Sean::function b, &B::CallParams` | 7.34 | 136,228,235.17 | 2.0% | 2.04 | `Sean::function direct a|b, &A|B::CallParams` | 3.05 | 327,705,146.85 | 3.0% | 1.11 | `Sean::function direct a, &A::CallParams` | 3.00 | 332,837,039.23 | 2.0% | 1.10 | `Sean::function direct b, &B::CallParams` | 7.38 | 135,533,804.72 | 1.9% | 2.06 | `template sean::function a|b, &A|B::CallParams` | 3.03 | 330,020,313.85 | 1.8% | 1.11 | `template sean::function a, &A::CallParams` | 2.97 | 336,151,301.10 | 2.6% | 1.12 | `template sean::function b, &B::CallParams` | 7.62 | 131,292,731.68 | 2.6% | 2.11 | `template check sean::function a|b, &A|B::CallParams` | 3.09 | 323,415,838.11 | 3.0% | 1.09 | `template check sean::function a, &A::CallParams` | 3.11 | 321,256,824.05 | 3.3% | 1.13 | `template check sean::function b, &B::CallParams`
0xseantasker added a comment to P19 Sean::function.
| ns/op | op/s | err% | total | benchmark |--------------------:|--------------------:|--------:|----------:|:---------- | 10.60 | 94,344,931.82 | 2.8% | 2.97 | `base->Call()` | 5.97 | 167,477,592.03 | 3.4% | 1.68 | `a->Call()` | 5.41 | 184,901,294.35 | 3.0% | 1.53 | `b->Call()` | 13.68 | 73,124,846.95 | 2.7% | 3.82 | `function &Base::Call, base` | 9.46 | 105,669,404.37 | 3.2% | 2.64 | `function &A::Call, a` | 9.70 | 103,085,126.35 | 3.1% | 2.67 | `function &B::Call, b` | 14.48 | 69,048,782.30 | 3.1% | 4.05 | `boost function &Base::Call, base` | 8.19 | 122,141,120.01 | 3.2% | 2.33 | `boost function &A::Call, a` | 8.29 | 120,667,180.75 | 3.7% | 2.35 | `boost function &B::Call, b` | 11.60 | 86,224,941.90 | 3.6% | 3.26 | `function pointer direct base, &Base::Call ` | 6.92 | 144,414,111.03 | 2.6% | 1.94 | `function pointer direct a, &A::Call` | 6.68 | 149,690,679.93 | 2.2% | 1.84 | `function pointer direct b, &B::Call` | 8.03 | 124,592,437.34 | 2.5% | 2.24 | `Sean::function a|b, &A|B::Call` | 5.30 | 188,772,307.34 | 3.1% | 1.48 | `Sean::function a, &A::Call` | 5.27 | 189,694,989.33 | 4.4% | 1.47 | `Sean::function b, &B::Call` | 7.28 | 137,307,480.61 | 3.4% | 2.03 | `Sean::function direct a|b, &A|B::Call` | 5.10 | 195,962,106.63 | 3.2% | 1.43 | `Sean::function direct a, &A::Call` | 5.19 | 192,672,407.85 | 3.1% | 1.45 | `Sean::function direct b, &B::Call` | 7.34 | 136,232,012.08 | 3.0% | 2.04 | `Sean::function a|b, &A|B::CallParams` | 5.21 | 191,782,099.69 | 2.7% | 1.45 | `Sean::function a, &A::CallParams` | 5.27 | 189,619,729.88 | 2.7% | 1.48 | `Sean::function b, &B::CallParams` | 7.33 | 136,398,281.55 | 3.9% | 2.05 | `Sean::function direct a|b, &A|B::CallParams` | 5.21 | 192,095,062.80 | 2.7% | 1.45 | `Sean::function direct a, &A::CallParams` | 5.32 | 188,061,229.03 | 2.6% | 1.47 | `Sean::function direct b, &B::CallParams` | 7.77 | 128,682,149.45 | 2.6% | 2.17 | `template sean::function a|b, &A|B::CallParams` | 5.21 | 191,782,392.03 | 2.7% | 1.47 | `template sean::function a, &A::CallParams` | 5.33 | 187,496,921.86 | 3.6% | 1.51 | `template sean::function b, &B::CallParams` | 8.90 | 112,357,224.57 | 2.7% | 2.50 | `template check sean::function a|b, &A|B::CallParams` | 6.01 | 166,347,689.09 | 2.8% | 1.69 | `template check sean::function a, &A::CallParams` | 5.80 | 172,298,426.51 | 3.3% | 1.64 | `template check sean::function b, &B::CallParams`
Sep 14 2024
Sep 14 2024
Sep 3 2024
Sep 3 2024
0xseantasker edited the content of Echo 3.
Sep 3 2024, 6:52 PM · Restricted Project
Aug 26 2024
Aug 26 2024
Aug 26 2024, 10:02 PM · Restricted Project
Jul 24 2024
Jul 24 2024
0xseantasker published Blog Post: Echo changelog July 2024.
Jul 24 2024, 7:07 AM · Restricted Project
Jun 23 2024
Jun 23 2024
0xseantasker edited the content of Echo 3.
Jun 23 2024, 6:03 PM · Restricted Project
Jun 12 2024
Jun 12 2024
0xseantasker published a new version of Networking.
Jun 5 2024
Jun 5 2024
0xseantasker created an object: Networking.
0xseantasker edited the content of Echo 3.
Jun 5 2024, 10:00 PM · Restricted Project
0xseantasker edited the content of Echo 3.
Jun 5 2024, 9:59 PM · Restricted Project
Apr 30 2024
Apr 30 2024
0xseantasker edited the content of Echo 3.
Apr 30 2024, 11:29 PM · Restricted Project
0xseantasker edited the content of Echo 3.
Apr 30 2024, 11:21 PM · Restricted Project
Apr 3 2024
Apr 3 2024
0xseantasker edited the content of Rendering.
Apr 2 2024
Apr 2 2024
0xseantasker edited the content of Echo 3.
Apr 2 2024, 11:33 PM · Restricted Project
0xseantasker edited the content of Shaders.
Apr 1 2024
Apr 1 2024
0xseantasker created an object: Shaders.