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-rwxr-xr-xtests/runner.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/runner.py b/tests/runner.py
index 17d6ef0c..bbe9715c 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -10,6 +10,9 @@ These tests can be run in parallel using nose, for example
will use 4 processes. To install nose do something like
|pip install nose| or |sudo apt-get install python-nose|.
+
+Note however that emcc now uses multiple cores when optimizing,
+so you may prefer to use fewer cores here.
'''
from subprocess import Popen, PIPE, STDOUT