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-rw-r--r--erts/configure.in23
1 files changed, 23 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 2018e19b76..e1233cee59 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -139,6 +139,13 @@ AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support]),
*) enable_dirty_schedulers=yes ;;
esac ], enable_dirty_schedulers=default)
+AC_ARG_ENABLE(dirty-schedulers-test,
+AS_HELP_STRING([--enable-dirty-schedulers-test], [enable dirty scheduler test (for debugging purposes)]),
+[ case "$enableval" in
+ yes) enable_dirty_schedulers_test=yes ;;
+ *) enable_dirty_schedulers_test=no ;;
+ esac ], enable_dirty_schedulers_test=no)
+
AC_ARG_ENABLE(smp-support,
AS_HELP_STRING([--enable-smp-support], [enable smp support])
AS_HELP_STRING([--disable-smp-support], [disable smp support]),
@@ -1050,6 +1057,22 @@ esac
AC_MSG_RESULT($DIRTY_SCHEDULER_SUPPORT)
AC_SUBST(DIRTY_SCHEDULER_SUPPORT)
+DIRTY_SCHEDULER_TEST=$enable_dirty_schedulers_test
+test $DIRTY_SCHEDULER_SUPPORT = yes || DIRTY_SCHEDULER_TEST=no
+AC_SUBST(DIRTY_SCHEDULER_TEST)
+test $DIRTY_SCHEDULER_TEST != yes || {
+ test -f "$ERL_TOP/erts/CONF_INFO" || echo "" > "$ERL_TOP/erts/CONF_INFO"
+ cat >> $ERL_TOP/erts/CONF_INFO <<EOF
+
+ WARNING:
+ Dirty Scheduler Test has been enabled. This
+ feature is for debugging purposes only.
+ Poor performance as well as strange system
+ characteristics is expected!
+
+EOF
+}
+
if test $ERTS_BUILD_SMP_EMU = yes; then
if test $found_threads = no; then