Is Clearscript right way to go?

[koculu]

I have written a JS engine in pure C# which supports multithreading.
Performance and memory consumption is far more better than Clearscript and good for server-side rendering.
https://github.com/koculu/topaz
Please take a look. I posted here for those who might be interested in.
It seems like marshaling to C++ is not a good way for .NET applications.

[ClearScriptLib]

Hi @koculu,

Your project, Topaz, looks fantastic! Thanks for releasing it on GitHub!

There's no question that V8 heavily favors script execution speed over startup time and memory efficiency, and that the boundary between the managed host and the V8 environment is expensive. If your application depends on chatty host-script interaction, V8 is probably not for you, especially if your scripts are small and not computationally intensive.

As for concurrency, the usual way to achieve it in JavaScript is by using multiple engine instances that communicate via message passing. Web Workers are an example of this approach. We've posted a sample that demonstrates a similar facility implemented with ClearScript.

BTW, we modified the Topaz benchmark to print results for Topaz, Jint, and ClearScript. On our test machine, it produces the following output:

Topaz: 220 ms
Jint: 233 ms
ClearScript: 48 ms

If we raise the iteration count from 100,000 to 10,000,000, the results are as follows:

Topaz: 6818 ms
Jint: 8280 ms
ClearScript: 63 ms

The bottom line is that there are always tradeoffs 😊

As this post doesn't refer to an actionable ClearScript issue, we'll convert it into a discussion. Please feel free to send additional thoughts or findings our way.

Thanks!