cast is slow on OSX

[drortirosh]

Component

Cast

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

cast 0.2.0 (34f684d 2023-11-01T22:19:24.957042000Z)

What command(s) is the bug in?

time cast bn

Operating System

macOS (Apple Silicon)

Describe the bug

For some reason, network commands of cast are slow.
(all measures are against a local geth or anvil)

• time cast to-hex takes ~25ms, but
• time cast bn takes ~200 ms.
  In comparison, the equivalent curl takes ~15 ms
  time curl -H 'content-type: application/json' -d '{"id":1,"jsonrpc":"2.0","method":"eth_blockNumber"}' http://localhost:8545

I verified that it works better on a linux (google cloud) - 10ms for "to-hex" and 15 ms for "bn"

(note: I verified I use native "arm64" executables.

[mattsse]

I see, the issue here is that we're trying to resolve foundry config because the bn command also supports chain aliases.

we can make this a bit smarter though

instead of resolving the config:

foundry/crates/cast/bin/main.rs

Line 231 in 1c7bf46

let config = Config::from(&rpc);

we should check if URL argument is none (or a valid URL and no alias) and return localhost or that URL parameter, or the flashbots URL if --flashbots and don't resolve the config

[drortirosh]

I still don't understand why this hurts OSx build, and don't the Linux version.
I also tried to add an alias

[rpc_endpoints]
local = "http://localhost:8545"

And all variants:

• time cast bn -r http://localhost:8545
• time cast bn -r local
• time cast bn

Take roughly the same.

[DaniPopes]

Can reproduce as well. Profiling shows that 80% of the time is spent in rustls_native_certs::load_native_certs: https://share.firefox.dev/463tYIx