getrusage_time    157 gc.c           	    gc_time = getrusage_time();\
getrusage_time    164 gc.c           	    gc_time = getrusage_time() - gc_time;\
getrusage_time    177 gc.c           	    mark_time = getrusage_time();\
getrusage_time    183 gc.c           	    mark_time = getrusage_time() - mark_time;\
getrusage_time    191 gc.c           	    sweep_time = getrusage_time();\
getrusage_time    197 gc.c           	    sweep_time = getrusage_time() - sweep_time;\
getrusage_time    933 gc.c               objspace->profile.invoke_time = getrusage_time();