Aaron O'Mullan

A PoC demonstrating the feasibility of a sidecar binary to produce snapshots when cross-compiling

Marginally faster than using v8::External due to embedder pointer indirection

test(node): check star & default imports match

6

WIP, lots of mismatches, some fixes ...

fix: isBrowser false positives

1

Feature detect against `document` instead of `window` to avoid false positives in environments like Deno that define a `window` global but no `document`

perf(decode): optimize Vec alloc/resize

4

Avoid calloc overhead of initializing buffer we'll write into, improving `decode_small_input/decode/3` by -33% Unfortunately requires unsafe Vec::set_len so we can get a mutable ref to the uninit portion of the...

Improves throughput by 10-20% We avoid zeroing the allocated vec since we'll write into it and we don't need to check utf8 when building the String since all alphabets emit...

feat(isolate): expose get/set_data

2

Since that allows us to store data in the isolate without going through the Annex (less efficient) especially when in practice the cardinality is small (i.e: 2 in deno_core)

Cross posting this from https://github.com/faisalman/ua-parser-js/issues/401 (I know this SDK uses your own fork, but issues are disabled on your fork): > A big chunk of Amplitude's initialization time is spent...

perf: improve non-SIMD with wordwise validation

4

A 1st pass at improving non-SIMD perf, to land after https://github.com/seanmonstar/httparse/pull/122 On aarch64/M1 we observe a ~5x asymptotic improvement in uri parsing and ~2.5x in header names & values. We...

To provide better baselines for perf work, etc... It unfortunately requires exposing a few functions as public, though they are hidden from the docs and re-exported under a `_benchable` mod...