From 9c001bdcfdffc0ca1bc7967f8e44b7c7819666df Mon Sep 17 00:00:00 2001
From: James Wilson <james@jsdw.me>
Date: Fri, 6 Aug 2021 17:50:50 +0100
Subject: [PATCH] Add a comment on core worker threads

---
 backend/telemetry_core/src/main.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/backend/telemetry_core/src/main.rs b/backend/telemetry_core/src/main.rs
index 8f35da2..a3beec0 100644
--- a/backend/telemetry_core/src/main.rs
+++ b/backend/telemetry_core/src/main.rs
@@ -78,6 +78,8 @@ fn main() {
     let worker_threads = match opts.worker_threads {
         Some(0) => num_cpus::get(),
         Some(n) => n,
+        // By default, use a max of 8 worker threads, as perf
+        // testing has found that to be a good sweet spot.
         None => usize::min(num_cpus::get(), 8),
     };