diff --git a/.circleci/config.yml b/.circleci/config.yml
index 95ee78fe..f271c62e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -16,7 +16,9 @@ commands:
             echo "Sourcing /devenv.sh since docker entrypoint doesn't do it as expected"
             source /devenv.sh
             rm -rf build/<< parameters.arch >>/<< parameters.target >>/* build/<< parameters.arch >>/log/*
-            #Force -j8 so that each make subtask consumes 1gb max and force respect of minimal requirements of CircleCI which otherwise randomly fails
+            #Pass AVAILABLE_MEM_GB=8 to respect CircleCI free tier RAM assignation, which otherwise randomly fails. See Makefile calculations.
+            # Without AVAILABLE_MEM_GB=8: CircleCI passes '-j36 --load-average=54'
+            # With AVAILABLE_MEM_GB=8: CircleCI passes '-j8 --load-average=12'
             make V=1 BOARD=<< parameters.target >> << parameters.subcommand >> AVAILABLE_MEM_GB=8  | ts || touch ./tmpDir/failed_build
           no_output_timeout: 3h
       - run: