| algorithm | API | gas | gas time(s) | wall time(s) | iter/s (gas time) | iter/s (wall time) | gas time / wall time |
|---|---|---|---|---|---|---|---|
| sha3 | Pink.hash() | 4617812840 | 0.00462 | 0.0002987 | 216.5 | 3347 | 15.46x |
| sha3 | @noble/sha3 | 20073274222067 | 20.07 | 0.053905 | 0.049 | 18.55 | 372.37x |
| sha3 | @noble/sha3 (in Sidevm) | - | - | - | - | 150 | - |
| scale codec | Pink.SCALE | 56486325739 | 0.05648 | 0.007185 | - | - | 7.86x |
| scale codec | Pink.SCALE(js) | 3007242541960 | 3.007 | 0.03376 | - | - | 89.07x |
| empty loop | js (for loop) | 1062423527 | 0.00106 | 1.91e-06 | - | - | 556.18x |
| empty loop | rust (for in {}) | 353706 | 3.5371e-07 | 1.91e-06 | - | - | 9.69x |
| empty loop | rust (loop {}) | - | - | - | - | - | 5.25x |
| 100K memory alloc | new Uint8Array() | 29326427077 | 0.02932 | 0.002782 | 34.106 | 359.45 | 10.54x |
| 1K memory alloc | new Uint8Array() | 2238125423 | 0.00223 | 8.045e-05 | 448.43 | 12430.08 | 27.82x |
| regex | str.matchAll | 3107885449 | 0.00311 | 0.000182 | - | - | 17.08x |
-
the gas time is always higher than the wall time across different operations.
-
The gas time ratio to wall time variant between 5x to 500x when running different workloads.
The wasmi switched the gas metering to a inprecise way
one fuel per instructionin #701. -
The pure js
sha3hash is one of the worst cases.It require turn the gas limit up to 10x or so in order to run a single pure js hash calucation.