echo -multicoregc generate multi-core binary with garbage collection
echo -pmc parallel collector
echo "-numcore4gc set the number of cores for gc (should be used together with -multicoregc), defaultly set as 0"
echo -multicoregc generate multi-core binary with garbage collection
echo -pmc parallel collector
echo "-numcore4gc set the number of cores for gc (should be used together with -multicoregc), defaultly set as 0"