2 * nfsstat.c Output NFS statistics
4 * Copyright (C) 1995-2005 Olaf Kirch <okir@suse.de>
11 #define NFSSRVSTAT "/proc/net/rpc/nfsd"
12 #define NFSCLTSTAT "/proc/net/rpc/nfs"
14 #define MOUNTSFILE "/proc/mounts"
28 static unsigned int srvproc2info[20], srvproc2info_old[20]; /* NFSv2 call counts ([0] == 18) */
29 static unsigned int cltproc2info[20], cltproc2info_old[20]; /* NFSv2 call counts ([0] == 18) */
30 static unsigned int srvproc3info[24], srvproc3info_old[24]; /* NFSv3 call counts ([0] == 22) */
31 static unsigned int cltproc3info[24], cltproc3info_old[24]; /* NFSv3 call counts ([0] == 22) */
32 static unsigned int srvproc4info[4], srvproc4info_old[4]; /* NFSv4 call counts ([0] == 2) */
33 static unsigned int cltproc4info[37], cltproc4info_old[37]; /* NFSv4 call counts ([0] == 35) */
34 static unsigned int srvproc4opsinfo[42], srvproc4opsinfo_old[42]; /* NFSv4 call counts ([0] == 40) */
35 static unsigned int srvnetinfo[5], srvnetinfo_old[5]; /* 0 # of received packets
40 static unsigned int cltnetinfo[5], cltnetinfo_old[5]; /* 0 # of received packets
46 static unsigned int srvrpcinfo[6], srvrpcinfo_old[6]; /* 0 total # of RPC calls
47 * 1 total # of bad calls
49 * 3 authentication failed
52 static unsigned int cltrpcinfo[4], cltrpcinfo_old[4]; /* 0 total # of RPC calls
53 * 1 retransmitted calls
57 static unsigned int srvrcinfo[9], srvrcinfo_old[9]; /* 0 repcache hits
60 * (for pre-2.4 kernels:)
63 * 5 noncached non-directories
64 * 6 noncached directories
68 static unsigned int srvfhinfo[7], srvfhinfo_old[7]; /* (for kernels >= 2.4.0)
72 * 3 noncached directories
73 * 4 noncached non-directories
74 * leave hole to relocate stale for order
78 static const char * nfsv2name[18] = {
79 "null", "getattr", "setattr", "root", "lookup", "readlink",
80 "read", "wrcache", "write", "create", "remove", "rename",
81 "link", "symlink", "mkdir", "rmdir", "readdir", "fsstat"
84 static const char * nfsv3name[22] = {
85 "null", "getattr", "setattr", "lookup", "access", "readlink",
86 "read", "write", "create", "mkdir", "symlink", "mknod",
87 "remove", "rmdir", "rename", "link", "readdir", "readdirplus",
88 "fsstat", "fsinfo", "pathconf", "commit"
91 static const char * nfssrvproc4name[2] = {
96 static const char * nfscltproc4name[35] = {
97 "null", "read", "write", "commit", "open", "open_conf",
98 "open_noat", "open_dgrd", "close", "setattr", "fsinfo", "renew",
99 "setclntid", "confirm", "lock",
100 "lockt", "locku", "access", "getattr", "lookup", "lookup_root",
101 "remove", "rename", "link", "symlink", "create", "pathconf",
102 "statfs", "readlink", "readdir", "server_caps", "delegreturn", "getacl",
103 "setacl", "fs_locations"
106 static const char * nfssrvproc4opname[40] = {
107 "op0-unused", "op1-unused", "op2-future", "access", "close", "commit",
108 "create", "delegpurge", "delegreturn", "getattr", "getfh", "link",
109 "lock", "lockt", "locku", "lookup", "lookup_root", "nverify",
110 "open", "openattr", "open_conf", "open_dgrd", "putfh", "putpubfh",
111 "putrootfh", "read", "readdir", "readlink", "remove", "rename",
112 "renew", "restorefh", "savefh", "secinfo", "setattr", "setcltid",
113 "setcltidconf", "verify", "write", "rellockowner"
116 #define LABEL_srvnet "Server packet stats:\n"
117 #define LABEL_srvrpc "Server rpc stats:\n"
118 #define LABEL_srvrc "Server reply cache:\n"
119 #define LABEL_srvfh "Server file handle cache:\n"
120 #define LABEL_srvproc2 "Server nfs v2:\n"
121 #define LABEL_srvproc3 "Server nfs v3:\n"
122 #define LABEL_srvproc4 "Server nfs v4:\n"
123 #define LABEL_srvproc4ops "Server nfs v4 operations:\n"
124 #define LABEL_cltnet "Client packet stats:\n"
125 #define LABEL_cltrpc "Client rpc stats:\n"
126 #define LABEL_cltproc2 "Client nfs v2:\n"
127 #define LABEL_cltproc3 "Client nfs v3:\n"
128 #define LABEL_cltproc4 "Client nfs v4:\n"
130 typedef struct statinfo {
134 unsigned int * valptr;
138 * We now build the arrays of statinfos using macros, which will make it easier
139 * to add new variables for --sleep. e.g., SRV(net) expands into the struct
140 * statinfo: { "net", "Server packet stats:\n", 5, srvnetinfo }
142 #define ARRAYSIZE(x) sizeof(x)/sizeof(*x)
143 #define STATINFO(k, t, s...) { #t, LABEL_##k##t, ARRAYSIZE(k##t##info##s), k##t##info##s }
144 #define SRV(t, s...) STATINFO(srv, t, s)
145 #define CLT(t, s...) STATINFO(clt, t, s)
146 #define DECLARE_SRV(n, s...) static statinfo n##s[] = { \
155 { NULL, NULL, 0, NULL }\
157 #define DECLARE_CLT(n, s...) static statinfo n##s[] = { \
163 { NULL, NULL, 0, NULL }\
165 DECLARE_SRV(srvinfo);
166 DECLARE_SRV(srvinfo, _old);
167 DECLARE_CLT(cltinfo);
168 DECLARE_CLT(cltinfo, _old);
170 static void print_all_stats(int, int, int);
171 static void print_server_stats(int, int);
172 static void print_client_stats(int, int);
173 static void print_stats_list(int);
174 static void print_numbers(const char *, unsigned int *,
176 static void print_callstats(const char *, const char **,
177 unsigned int *, unsigned int);
178 static void print_callstats_list(const char *, const char **,
179 unsigned int *, unsigned int);
180 static int parse_raw_statfile(const char *, struct statinfo *);
181 static int parse_pretty_statfile(const char *, struct statinfo *);
183 static statinfo *get_stat_info(const char *, struct statinfo *);
185 static int mounts(const char *);
187 static void get_stats(const char *, struct statinfo *, int *, int,
189 static int has_stats(const unsigned int *);
190 static int has_rpcstats(const unsigned int *, int);
191 static void diff_stats(struct statinfo *, struct statinfo *, int);
192 static void unpause(int);
193 static void update_old_counters(struct statinfo *, struct statinfo *);
195 static time_t starttime;
197 #define PRNT_CALLS 0x0001
198 #define PRNT_RPC 0x0002
199 #define PRNT_NET 0x0004
200 #define PRNT_FH 0x0008
201 #define PRNT_RC 0x0010
202 #define PRNT_AUTO 0x1000
203 #define PRNT_V2 0x2000
204 #define PRNT_V3 0x4000
205 #define PRNT_V4 0x8000
206 #define PRNT_ALL 0x0fff
214 void usage(char *name)
216 printf("Usage: %s [OPTION]...\n\
218 -m, --mounts Show statistics on mounted NFS filesystems\n\
219 -c, --client Show NFS client statistics\n\
220 -s, --server Show NFS server statistics\n\
221 -2 Show NFS version 2 statistics\n\
222 -3 Show NFS version 3 statistics\n\
223 -4 Show NFS version 4 statistics\n\
224 -o [facility] Show statistics on particular facilities.\n\
225 nfs NFS protocol information\n\
226 rpc General RPC information\n\
227 net Network layer statistics\n\
228 fh Usage information on the server's file handle cache\n\
229 rc Usage information on the server's request reply cache\n\
230 all Select all of the above\n\
231 -v, --verbose, --all Same as '-o all'\n\
232 -r, --rpc Show RPC statistics\n\
233 -n, --nfs Show NFS statistics\n\
234 -Z[#], --sleep[=#] Collects stats until interrupted.\n\
235 Cumulative stats are then printed\n\
236 If # is provided, stats will be output every\n\
238 -S, --since file Shows difference between current stats and those in 'file'\n\
239 -l, --list Prints stats in list format\n\
240 --version Show program version\n\
241 --help What you just did\n\
246 static struct option longopts[] =
248 { "acl", 0, 0, 'a' },
249 { "all", 0, 0, 'v' },
250 { "auto", 0, 0, '\3' },
251 { "client", 0, 0, 'c' },
252 { "mounted", 0, 0, 'm' },
253 { "nfs", 0, 0, 'n' },
254 { "rpc", 0, 0, 'r' },
255 { "server", 0, 0, 's' },
256 { "verbose", 0, 0, 'v' },
257 { "zero", 0, 0, 'z' },
258 { "help", 0, 0, '\1' },
259 { "version", 0, 0, '\2' },
260 { "sleep", 2, 0, 'Z' },
261 { "since", 1, 0, 'S' },
262 { "list", 0, 0, 'l' },
268 main(int argc, char **argv)
279 *serverfile = NFSSRVSTAT,
280 *clientfile = NFSCLTSTAT;
282 struct statinfo *serverinfo = srvinfo,
283 *serverinfo_tmp = srvinfo_old,
284 *clientinfo = cltinfo,
285 *clientinfo_tmp = cltinfo_old;
287 struct sigaction act = {
288 .sa_handler = unpause,
289 .sa_flags = SA_ONESHOT,
292 if ((progname = strrchr(argv[0], '/')))
297 while ((c = getopt_long(argc, argv, "234acmno:Z::S:vrslz\1\2", longopts, NULL)) != EOF) {
300 fprintf(stderr, "nfsstat: nfs acls are not yet supported.\n");
306 opt_prt |= PRNT_CALLS;
309 if (!strcmp(optarg, "nfs"))
310 opt_prt |= PRNT_CALLS;
311 else if (!strcmp(optarg, "rpc"))
313 else if (!strcmp(optarg, "net"))
315 else if (!strcmp(optarg, "rc"))
317 else if (!strcmp(optarg, "fh"))
319 else if (!strcmp(optarg, "all"))
320 opt_prt |= PRNT_CALLS | PRNT_RPC | PRNT_NET | PRNT_RC | PRNT_FH;
322 fprintf(stderr, "nfsstat: unknown category: "
330 sleep_time = atoi(optarg);
341 opt_prt |= versions[c - '2'];
347 opt_prt |= PRNT_AUTO;
359 fprintf(stderr, "nfsstat: zeroing of nfs statistics "
360 "not yet supported\n");
363 return mounts(MOUNTSFILE);
368 fprintf(stdout, "nfsstat: " VERSION "\n");
371 printf("Try `%s --help' for more information.\n", progname);
377 opt_srv = opt_clt = 1;
380 if (!(opt_srv + opt_clt))
381 opt_srv = opt_clt = 1;
382 if (!(opt_prt & 0xfff)) {
383 opt_prt |= PRNT_CALLS + PRNT_RPC;
385 if (!(opt_prt & 0xe000)) {
386 opt_prt |= PRNT_AUTO;
388 if ((opt_prt & (PRNT_FH|PRNT_RC)) && !opt_srv) {
390 "You requested file handle or request cache "
391 "statistics while using the -c option.\n"
392 "This information is available only for the NFS "
396 if (opt_since || opt_sleep) {
397 serverinfo = srvinfo_old;
398 serverinfo_tmp = srvinfo;
399 clientinfo = cltinfo_old;
400 clientinfo_tmp = cltinfo;
404 get_stats(serverfile, serverinfo, &opt_srv, opt_clt, 1);
406 get_stats(clientfile, clientinfo, &opt_clt, opt_srv, 0);
408 if (opt_sleep && !sleep_time) {
409 starttime = time(NULL);
410 printf("Collecting statistics; press CTRL-C to view results from interval (i.e., from pause to CTRL-C).\n");
411 if (sigaction(SIGINT, &act, NULL) != 0) {
412 fprintf(stderr, "Error: couldn't register for signal and pause.\n");
418 if (opt_since || opt_sleep) {
420 get_stats(NFSSRVSTAT, serverinfo_tmp, &opt_srv, opt_clt, 1);
421 diff_stats(serverinfo_tmp, serverinfo, 1);
424 get_stats(NFSCLTSTAT, clientinfo_tmp, &opt_clt, opt_srv, 0);
425 diff_stats(clientinfo_tmp, clientinfo, 0);
431 get_stats(NFSSRVSTAT, serverinfo_tmp , &opt_srv, opt_clt, 1);
432 diff_stats(serverinfo_tmp, serverinfo, 1);
435 get_stats(NFSCLTSTAT, clientinfo_tmp, &opt_clt, opt_srv, 0);
436 diff_stats(clientinfo_tmp, clientinfo, 0);
439 print_stats_list(opt_prt);
441 print_all_stats(opt_srv, opt_clt, opt_prt);
445 update_old_counters(clientinfo_tmp, clientinfo);
450 print_stats_list(opt_prt);
452 print_all_stats(opt_srv, opt_clt, opt_prt);
460 print_all_stats (int opt_srv, int opt_clt, int opt_prt)
462 print_server_stats(opt_srv, opt_prt);
463 print_client_stats(opt_clt, opt_prt);
467 print_server_stats(int opt_srv, int opt_prt)
470 if (opt_prt & PRNT_NET) {
473 "packets udp tcp tcpconn\n",
478 if (opt_prt & PRNT_RPC) {
479 if (!opt_sleep && !has_rpcstats(srvrpcinfo, 5)) {
482 "calls badcalls badauth badclnt xdrcall\n",
488 if (opt_prt & PRNT_RC) {
491 "hits misses nocache\n",
498 * 2.2 puts all fh-related info after the 'rc' header
499 * 2.4 puts all fh-related info after the 'fh' header, but relocates
500 * 'stale' to the start and swaps dir and nondir :-(
501 * We preseve the 2.2 order
503 if (opt_prt & PRNT_FH) {
504 if (get_stat_info("fh", srvinfo)) { /* >= 2.4 */
505 int t = srvfhinfo[3];
506 srvfhinfo[3]=srvfhinfo[4];
509 srvfhinfo[5]=srvfhinfo[0]; /* relocate 'stale' */
513 "lookup anon ncachedir ncachedir stale\n",
518 "lookup anon ncachedir ncachedir stale\n",
522 if (opt_prt & PRNT_CALLS) {
523 if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc2info)))
526 nfsv2name, srvproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
528 if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc3info)))
531 nfsv3name, srvproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
533 if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc4info))) {
536 nfssrvproc4name, srvproc4info + 1, sizeof(nfssrvproc4name)/sizeof(char *)
540 nfssrvproc4opname, srvproc4opsinfo + 1, sizeof(nfssrvproc4opname)/sizeof(char *)
547 print_client_stats(int opt_clt, int opt_prt)
550 if (opt_prt & PRNT_NET) {
553 "packets udp tcp tcpconn\n",
558 if (opt_prt & PRNT_RPC) {
559 if (!opt_sleep && !has_rpcstats(cltrpcinfo, 3)) {
562 "calls retrans authrefrsh\n",
568 if (opt_prt & PRNT_CALLS) {
569 if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc2info)))
572 nfsv2name, cltproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
574 if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc3info)))
577 nfsv3name, cltproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
579 if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc4info)))
582 nfscltproc4name, cltproc4info + 1, sizeof(nfscltproc4name)/sizeof(char *)
589 print_stats_list(int opt_prt)
591 if (opt_prt & PRNT_CALLS) {
592 if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc2info))) {
593 print_callstats_list(
595 nfsv2name, srvproc2info + 1, sizeof(nfsv2name)/sizeof(char *));
597 print_callstats_list(
599 nfsv2name, cltproc2info + 1, sizeof(nfsv2name)/sizeof(char *));
602 if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc3info))) {
603 print_callstats_list(
605 nfsv3name, srvproc3info + 1, sizeof(nfsv3name)/sizeof(char *));
607 print_callstats_list(
609 nfsv3name, cltproc3info + 1, sizeof(nfsv3name)/sizeof(char *));
612 if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc4info))) {
613 print_callstats_list(
615 nfssrvproc4name, srvproc4info + 1, sizeof(nfssrvproc4name)/sizeof(char *));
617 print_callstats_list(
619 nfssrvproc4opname, srvproc4opsinfo + 1, sizeof(nfssrvproc4opname)/sizeof(char *));
621 print_callstats_list(
623 nfscltproc4name, cltproc4info + 1, sizeof(nfscltproc4name)/sizeof(char *));
630 get_stat_info(const char *sp, struct statinfo *statp)
634 for (ip = statp; ip->tag; ip++) {
635 if (!strcmp(sp, ip->tag))
643 print_numbers(const char *hdr, unsigned int *info, unsigned int nr)
648 for (i = 0; i < nr; i++)
649 printf("%s%-8u", i? " " : "", info[i]);
654 print_callstats(const char *hdr, const char **names,
655 unsigned int *info, unsigned int nr)
657 unsigned long long total;
658 unsigned long long pct;
662 for (i = 0, total = 0; i < nr; i++)
666 for (i = 0; i < nr; i += 6) {
667 for (j = 0; j < 6 && i + j < nr; j++)
668 printf("%-13s", names[i+j]);
670 for (j = 0; j < 6 && i + j < nr; j++) {
671 pct = ((unsigned long long) info[i+j]*100)/total;
672 printf("%-8u%3llu%% ", info[i+j], pct);
680 print_callstats_list(const char *hdr, const char **names,
681 unsigned int *callinfo, unsigned int nr)
683 unsigned long long calltotal;
686 for (i = 0, calltotal = 0; i < nr; i++) {
687 calltotal += callinfo[i];
689 printf("%13s %13s %8llu \n", hdr, "total:", calltotal);
690 printf("------------- ------------- --------\n");
691 for (i = 0; i < nr; i++) {
692 printf("%13s %12s: %8u \n", hdr, names[i], callinfo[i]);
698 /* returns 0 on success, 1 otherwise */
700 parse_raw_statfile(const char *name, struct statinfo *statp)
702 char buffer[4096], *next;
705 /* Being unable to read e.g. the nfsd stats file shouldn't
706 * be a fatal error -- it usually means the module isn't loaded.
708 if ((fp = fopen(name, "r")) == NULL) {
709 // fprintf(stderr, "Warning: %s: %m\n", name);
713 while (fgets(buffer, sizeof(buffer), fp) != NULL) {
715 char *sp, *line = buffer;
717 unsigned int total = 0;
719 if ((next = strchr(line, '\n')) != NULL)
721 if (!(sp = strtok(line, " \t")))
724 ip = get_stat_info(sp, statp);
730 for (i = 0; i < cnt; i++) {
731 if (!(sp = strtok(NULL, " \t")))
733 ip->valptr[i] = (unsigned int) strtoul(sp, NULL, 0);
734 total += ip->valptr[i];
736 ip->valptr[cnt - 1] = total;
743 /* returns 0 on success, 1 otherwise */
745 parse_pretty_statfile(const char *filename, struct statinfo *info)
747 int numvals, curindex, numconsumed, n, err = 1;
749 char buf[4096], *bufp, *fmt, is_proc;
753 if ((fp = fopen(filename, "r")) == NULL)
754 //err(2, "Unable to open statfile '%s'.\n", filename);
757 while (fgets(buf, sizeof(buf), fp) != NULL) {
758 for (ip = info; ip->tag; ip++) {
759 if (strcmp(buf, ip->label))
763 numvals = ip->nrvals - 1;
764 is_proc = strncmp("proc", ip->tag, 4) ? 0 : 1;
766 fmt = " %u %*u%% %n";
774 /* get (and skip) header */
775 if (fgets(buf, sizeof(buf), fp) == NULL) {
776 fprintf(stderr, "Failed to locate header after "
777 "label for '%s' in %s.\n",
781 /* no header -- done with this "tag" */
783 ip->valptr[numvals] = sum;
787 if (fgets(buf, sizeof(buf), fp) == NULL) {
788 fprintf(stderr, "Failed to locate stats after "
789 "header for '%s' in %s.\n",
794 for (; curindex < numvals; curindex++) {
795 n = sscanf(bufp, fmt, &ip->valptr[curindex],
803 sum += ip->valptr[curindex];
817 mounts(const char *name)
819 char buffer[4096], *next;
822 /* Being unable to read e.g. the nfsd stats file shouldn't
823 * be a fatal error -- it usually means the module isn't loaded.
825 if ((fp = fopen(name, "r")) == NULL) {
826 fprintf(stderr, "Warning: %s: %m\n", name);
830 while (fgets(buffer, sizeof(buffer), fp) != NULL) {
832 char *device, *mount, *type, *flags;
834 if ((next = strchr(line, '\n')) != NULL)
837 if (!(device = strtok(line, " \t")))
840 if (!(mount = strtok(NULL, " \t")))
843 if (!(type = strtok(NULL, " \t")))
846 if (strcmp(type, "nfs") && strcmp(type,"nfs4")) {
850 if (!(flags = strtok(NULL, " \t")))
853 printf("%s from %s\n", mount, device);
854 printf(" Flags:\t%s\n", flags);
865 get_stats(const char *file, struct statinfo *info, int *opt, int other_opt,
871 char *label = is_srv ? "Server" : "Client";
873 /* try to guess what type of stat file we're dealing with */
874 if ((fp = fopen(file, "r")) == NULL)
876 if (fgets(buf, 10, fp) == NULL)
878 if (!strncmp(buf, "net ", 4)) {
879 /* looks like raw client stats */
881 fprintf(stderr, "Warning: no server info present in "
882 "raw client stats file.\n");
885 err = parse_raw_statfile(file, info);
886 } else if (!strncmp(buf, "rc ", 3)) {
887 /* looks like raw server stats */
889 fprintf(stderr, "Warning: no client info present in "
890 "raw server stats file.\n");
893 err = parse_raw_statfile(file, info);
895 /* looks like pretty client and server stats */
896 err = parse_pretty_statfile(file, info);
902 fprintf(stderr, "Error: No %s Stats (%s: %m). \n",
911 * This is for proc2/3/4-type stats, where, in the /proc files, the first entry's value
912 * denotes the number of subsequent entries. statinfo value arrays contain an additional
913 * field at the end which contains the sum of all previous elements in the array -- so,
914 * there are stats if the sum's greater than the entry-count.
917 has_stats(const unsigned int *info)
919 return (info[0] && info[info[0] + 1] > info[0]);
922 has_rpcstats(const unsigned int *info, int size)
926 for (i=0, cnt=0; i < size; i++)
932 * take the difference of each individual stat value in 'new' and 'old'
933 * and store the results back into 'new'
936 diff_stats(struct statinfo *new, struct statinfo *old, int is_srv)
938 int i, j, nodiff_first_index, should_diff;
941 * Different stat types have different formats in the /proc
942 * files: for the proc2/3/4-type stats, the first entry has
943 * the total number of subsequent entries; one does not want
944 * to diff that first entry. The other stat types aren't like
945 * this. So, we diff a given entry if it's not of one of the
946 * procX types ("i" < 2 for clt, < 4 for srv), or if it's not
947 * the first entry ("j" > 0).
949 nodiff_first_index = 2 + (2 * is_srv);
951 for (i = 0; old[i].tag; i++) {
952 for (j = 0; j < new[i].nrvals; j++) {
953 should_diff = (i < nodiff_first_index || j > 0);
955 new[i].valptr[j] -= old[i].valptr[j];
959 * Make sure that the "totals" entry (last value in
960 * each stat array) for the procX-type stats has the
961 * "numentries" entry's (first value in procX-type
962 * stat arrays) constant value added-back after the
963 * diff -- i.e., it should always be included in the
966 if (!strncmp("proc", new[i].tag, 4) && old[i].valptr[0])
967 new[i].valptr[new[i].nrvals - 1] += new[i].valptr[0];
975 int minutes, seconds;
978 endtime = time(NULL);
979 time_diff = difftime(endtime, starttime);
980 minutes = time_diff / 60;
981 seconds = (int)time_diff % 60;
982 printf("Signal received; displaying (only) statistics gathered over the last %d minutes, %d seconds:\n\n", minutes, seconds);
986 update_old_counters(struct statinfo *new, struct statinfo *old)
989 for (z = 0; old[z].tag; z++)
990 for (i = 0; i <= old[z].nrvals; i++)
991 old[z].valptr[i] += new[z].valptr[i];