malloc hook for jemalloc and c memory info dump

service/cmemory.lua

@@ -0,0 +1,10 @@
+local skynet = require "skynet"
+local memory = require "memory"
+
+memory.dumpinfo()
+memory.dump()
+
+print("Total memory:", memory.total())
+print("Total block:", memory.block())
+
+skynet.exit()