Do not allow the default libc allocator under linux to excess in memory footprint with many threads.
@@ -111,6 +111,7 @@ populate_environment
PATH=$VESPA_HOME/bin64:$VESPA_HOME/bin:/usr/local/bin:/usr/X11R6/bin:/sbin:/bin:/usr/sbin:/usr/bin
export LD_LIBRARY_PATH=$VESPA_HOME/lib64
+export MALLOC_ARENA_MAX=1
# how to find the "java" program?
# should be available in $VESPA_HOME/bin or JAVA_HOME
