From ad29081ba36525361f0d27b0b9a34e65be06197e Mon Sep 17 00:00:00 2001
From: Sylvestre Ledru <sylvestre@debian.org>
Date: Sun, 19 Jul 2026 19:53:49 +0200
Subject: [PATCH] benchmarks: reduce CodSpeed CI load to avoid cache API rate
 limits

Run on push only for main (PR branches already get a pull_request run
with identical results) and cap the 70-job matrix at 12 concurrent jobs
so the GitHub cache API is not hit by all of them at once.
---
 .github/workflows/benchmarks.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 2bafb5943ce..b85f10c5c76 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -7,7 +7,7 @@ on:
   pull_request:
   push:
     branches:
-      - '*'
+      - main
 
 permissions:
   contents: read # to fetch code (actions/checkout)
@@ -25,6 +25,9 @@ jobs:
     env:
       CARGO_INCREMENTAL: 0
     strategy:
+      # Stagger the jobs: 70 concurrent runners hitting the GitHub cache API
+      # (rust-cache + sccache + CodSpeed) at once triggers HTTP 429s.
+      max-parallel: 12
       matrix:
         type: [simulation, memory]
         package: [