diff --git a/poky/meta/lib/oe/utils.py b/poky/meta/lib/oe/utils.py
index 13f4271..468c76f 100644
--- a/poky/meta/lib/oe/utils.py
+++ b/poky/meta/lib/oe/utils.py
@@ -249,8 +249,7 @@
     return trimmed
 
 def cpu_count(at_least=1):
-    import multiprocessing
-    cpus = multiprocessing.cpu_count()
+    cpus = len(os.sched_getaffinity(0))
     return max(cpus, at_least)
 
 def execute_pre_post_process(d, cmds):