[bug]: Running LND becomes very slow on macOS (arm64) compared to Linux (ubuntu 22.04 aarch64)

[mohamedawnallah]

Background

Recently, I've observed that running LND on macOS (M1 - arm64) is significantly slower compared to running it on Linux (Ubuntu 22.04 aarch64). Here are videos demonstrating the difference:

ubuntu_22_aarch64.mov

macOS_m1_arm64.mp4

You can find the logs from both environments below:

• lnd debug logs - Linux (Ubuntu 22.04 aarch64)
• lnd debug logs - macOS (m1 arm64)

Also here are the lnd and bitcoin configurations used for both the environments (the passwords included are just for testing):

• bitcoin.conf - Linux (Ubuntu 22.04 aarch64) - lnd.conf - Linux (Ubuntu 22.04 aarch64)
• bitcoin.conf - macOS (m1 arm64) - lnd.conf - macOS (m1 arm64)

Context

Both instances are connected to the same chain backend (Bitcoin Core). The tests appear to be independent of computing resources. The LND instance on macOS was a fresh start, but the slow runtime persisted even after multiple attempts (e.g., testing cache or other factors).

Your Environment

Ubuntu (Linux)

• Environment: Virtual machine using Multipass
• OS: Linux 5.15.0-102-generic - Ubuntu 22.04.4 LTS (Jammy Jellyfish)
• CPUs: 1
• RAM: ~2 GB
• Storage: ~39 GB
• LND Version: 0.17.99-beta (kvdb/v1.4.6-4-geadbfbe1e)

macOS

• Environment: Main host
• OS: Darwin 23.0.0
• CPUs: 8
• RAM: ~8 GB
• Storage: ~228 GB
• LND Version: 0.17.99-beta (kvdb/v1.4.6-9-gd4c193757)

Chain Backend

• Type: Bitcoin Core
• Version: v23.0.0

Expected Behavior

Both environments should have similar runtime performance.

Actual Behavior

The runtime on macOS (M1 - arm64) is significantly slower compared to Linux (Ubuntu 22.04 aarch64).

[Smiril]

did "Siri" learn from this app?

[mohamedawnallah]

did "Siri" learn from this app?

Not sure I understand the context of this question!

[guggero]

I think this might be due to the FSYNC behavior of MacOS. See https://news.ycombinator.com/item?id=30370551.