--- jdk8u-jdk8u312-ga/hotspot/src/share/vm/runtime/globals.hpp.orig	2021-08-09 17:12:52.000000000 +0200
+++ jdk8u-jdk8u312-ga/hotspot/src/share/vm/runtime/globals.hpp	2021-11-24 22:08:41.933802463 +0100
@@ -534,7 +534,7 @@
   lp64_product(intx, ObjectAlignmentInBytes, 8,                             \
           "Default object alignment in bytes, 8 is minimum")                \
                                                                             \
-  product(bool, AssumeMP, false,                                            \
+  product(bool, AssumeMP, true,                                             \
           "Instruct the VM to assume multiple processors are available")    \
                                                                             \
   /* UseMembar is theoretically a temp flag used for memory barrier         \