Comments (6)
I did some more careful measurements now, I see the following speedups when using wasm:
- Multiply is 8-15% faster
- Divide is 33-45% faster
- Modulo is 45%-65% faster
(the range is from comparing on a bunch of different VMs).
I think this could be summarized as "slow operations like division are around twice as fast".
from long.js.
I guess there's also a performance gain, you could talk about it too.
from long.js.
Sure, why not :) Currently it's in the release notes only.
from long.js.
What do you think of adding this paragrapth below the API:
WebAssembly support
WebAssembly supports 64-bit integer arithmetic out of the box, hence a tiny WebAssembly module is used to compute operations like multiplication, division and remainder more efficiently (slow operations like division are around twice as fast), falling back to floating point based computations in JavaScript where WebAssembly is not yet supported, e.g., in older versions of node.
from long.js.
Alright, the updated paragraph above is in the README now. It's not possible to just switch the README on npm, though, so we'll have to wait for another version update. Maybe implementing ctz, clz, rotl, rotr (see #45) and maybe others might be a good cause :)
from long.js.
@dcodeIO I think this information is important enough to make a new release to update the README on npm (even if it's just a patch).
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Related Issues (20)
- Migrate to ESM HOT 1
- Using symbol for isLong HOT 2
- Add default value of unsigned in Long.fromInt to docs
- How to return a uint64? HOT 4
- isPositive returns true for zero
- Is the heigh argument in Long constructor required? HOT 2
- Switch to ESM breaks 3rd party libraries HOT 8
- [BUG] this.isZero is not function
- WASM check causes Node 16.1+ crash on ARMv6 HOT 3
- Unable import in TypeScript since v5+ HOT 10
- Add copyright line to licence
- protobuf fromNumber encoding error HOT 2
- Cannot import package using ES modules HOT 1
- Please available on module commonjs
- fromString with a string that isn't an integer behaves weird
- TypeScript errors with moduleResolution nodenext HOT 16
- "./package.json" is not defined by "exports" warning in React Native HOT 2
- For packaging for debian => need source information HOT 6
- Issue when running build on a NodeJS app HOT 4
- Patch
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