Minix1.5/amoeba/kernel/amstat.h

struct amstat {
	long ams_clfail;
	long ams_svfail;
	long ams_clcrash;
	long ams_rxcl;
	long ams_rxsv;
	long ams_trans;
	long ams_loctrans;
	long ams_remtrans;
	long ams_getreq;
	long ams_putrep;
	long ams_naks;
};