#define MAXNRVALS 32
-static unsigned int srvproc2info[20], srvproc2info_tmp[20]; /* NFSv2 call counts ([0] == 18) */
-static unsigned int cltproc2info[20], cltproc2info_tmp[20]; /* NFSv2 call counts ([0] == 18) */
-static unsigned int srvproc3info[24], srvproc3info_tmp[24]; /* NFSv3 call counts ([0] == 22) */
-static unsigned int cltproc3info[24], cltproc3info_tmp[24]; /* NFSv3 call counts ([0] == 22) */
-static unsigned int srvproc4info[4], srvproc4info_tmp[4]; /* NFSv4 call counts ([0] == 2) */
-static unsigned int cltproc4info[37], cltproc4info_tmp[37]; /* NFSv4 call counts ([0] == 35) */
-static unsigned int srvproc4opsinfo[42], srvproc4opsinfo_tmp[42]; /* NFSv4 call counts ([0] == 40) */
-static unsigned int srvnetinfo[5], srvnetinfo_tmp[5]; /* 0 # of received packets
+static unsigned int srvproc2info[20], srvproc2info_old[20]; /* NFSv2 call counts ([0] == 18) */
+static unsigned int cltproc2info[20], cltproc2info_old[20]; /* NFSv2 call counts ([0] == 18) */
+static unsigned int srvproc3info[24], srvproc3info_old[24]; /* NFSv3 call counts ([0] == 22) */
+static unsigned int cltproc3info[24], cltproc3info_old[24]; /* NFSv3 call counts ([0] == 22) */
+static unsigned int srvproc4info[4], srvproc4info_old[4]; /* NFSv4 call counts ([0] == 2) */
+static unsigned int cltproc4info[37], cltproc4info_old[37]; /* NFSv4 call counts ([0] == 35) */
+static unsigned int srvproc4opsinfo[42], srvproc4opsinfo_old[42]; /* NFSv4 call counts ([0] == 40) */
+static unsigned int srvnetinfo[5], srvnetinfo_old[5]; /* 0 # of received packets
* 1 UDP packets
* 2 TCP packets
* 3 TCP connections
*/
-static unsigned int cltnetinfo[5], cltnetinfo_tmp[5]; /* 0 # of received packets
+static unsigned int cltnetinfo[5], cltnetinfo_old[5]; /* 0 # of received packets
* 1 UDP packets
* 2 TCP packets
* 3 TCP connections
*/
-static unsigned int srvrpcinfo[6], srvrpcinfo_tmp[6]; /* 0 total # of RPC calls
+static unsigned int srvrpcinfo[6], srvrpcinfo_old[6]; /* 0 total # of RPC calls
* 1 total # of bad calls
* 2 bad format
* 3 authentication failed
* 4 unknown client
*/
-static unsigned int cltrpcinfo[4], cltrpcinfo_tmp[4]; /* 0 total # of RPC calls
+static unsigned int cltrpcinfo[4], cltrpcinfo_old[4]; /* 0 total # of RPC calls
* 1 retransmitted calls
* 2 cred refreshs
*/
-static unsigned int srvrcinfo[9], srvrcinfo_tmp[9]; /* 0 repcache hits
+static unsigned int srvrcinfo[9], srvrcinfo_old[9]; /* 0 repcache hits
* 1 repcache hits
* 2 uncached reqs
* (for pre-2.4 kernels:)
* 7 stale
*/
-static unsigned int srvfhinfo[7], srvfhinfo_tmp[7]; /* (for kernels >= 2.4.0)
+static unsigned int srvfhinfo[7], srvfhinfo_old[7]; /* (for kernels >= 2.4.0)
* 0 stale
* 1 FH lookups
* 2 'anon' FHs
"setcltidconf", "verify", "write", "rellockowner"
};
+#define LABEL_srvnet "Server packet stats:\n"
+#define LABEL_srvrpc "Server rpc stats:\n"
+#define LABEL_srvrc "Server reply cache:\n"
+#define LABEL_srvfh "Server file handle cache:\n"
+#define LABEL_srvproc2 "Server nfs v2:\n"
+#define LABEL_srvproc3 "Server nfs v3:\n"
+#define LABEL_srvproc4 "Server nfs v4:\n"
+#define LABEL_srvproc4ops "Server nfs v4 operations:\n"
+#define LABEL_cltnet "Client packet stats:\n"
+#define LABEL_cltrpc "Client rpc stats:\n"
+#define LABEL_cltproc2 "Client nfs v2:\n"
+#define LABEL_cltproc3 "Client nfs v3:\n"
+#define LABEL_cltproc4 "Client nfs v4:\n"
+
typedef struct statinfo {
char *tag;
+ char *label;
int nrvals;
unsigned int * valptr;
} statinfo;
/*
* We now build the arrays of statinfos using macros, which will make it easier
- * to add new variables for --diff-stat.
- * e.g., SRV(net) expands into the struct statinfo: { "net", 5, srvnetinfo }
+ * to add new variables for --sleep. e.g., SRV(net) expands into the struct
+ * statinfo: { "net", "Server packet stats:\n", 5, srvnetinfo }
*/
#define ARRAYSIZE(x) sizeof(x)/sizeof(*x)
-#define STATINFO(k, t, s...) { #t, ARRAYSIZE(k##t##info##s), k##t##info##s }
+#define STATINFO(k, t, s...) { #t, LABEL_##k##t, ARRAYSIZE(k##t##info##s), k##t##info##s }
#define SRV(t, s...) STATINFO(srv, t, s)
#define CLT(t, s...) STATINFO(clt, t, s)
#define DECLARE_SRV(n, s...) static statinfo n##s[] = { \
SRV(proc3,s),\
SRV(proc4,s), \
SRV(proc4ops,s),\
- { NULL, 0, NULL }\
+ { NULL, NULL, 0, NULL }\
}
#define DECLARE_CLT(n, s...) static statinfo n##s[] = { \
CLT(net,s), \
CLT(proc2,s),\
CLT(proc3,s), \
CLT(proc4,s),\
- { NULL, 0, NULL }\
+ { NULL, NULL, 0, NULL }\
}
DECLARE_SRV(srvinfo);
-DECLARE_SRV(srvinfo, _tmp);
+DECLARE_SRV(srvinfo, _old);
DECLARE_CLT(cltinfo);
-DECLARE_CLT(cltinfo, _tmp);
+DECLARE_CLT(cltinfo, _old);
static void print_numbers(const char *, unsigned int *,
unsigned int);
static void print_callstats(const char *, const char **,
unsigned int *, unsigned int);
-static int parse_statfile(const char *, struct statinfo *);
+static int parse_raw_statfile(const char *, struct statinfo *);
+static int parse_pretty_statfile(const char *, struct statinfo *);
static statinfo *get_stat_info(const char *, struct statinfo *);
static int mounts(const char *);
-static void get_stats(const char *, statinfo *, int *, int, const char *);
+static void get_stats(const char *, struct statinfo *, int *, int,
+ int);
static int has_stats(const unsigned int *);
-static void copy_stats(statinfo *, statinfo *);
-static void diff_stats(statinfo *, statinfo *);
+static void diff_stats(struct statinfo *, struct statinfo *, int);
static void unpause(int);
static time_t starttime;
-v, --verbose, --all\tSame as '-o all'\n\
-r, --rpc\t\tShow RPC statistics\n\
-n, --nfs\t\tShow NFS statistics\n\
- -D, --diff-stat\tSaves stats, pauses, diffs current and saved\n\
+ -Z, --sleep\t\tSaves stats, pauses, diffs current and saved\n\
+ -S, --since file\tShows difference between current stats and those in 'file'\n\
--version\t\tShow program version\n\
--help\t\tWhat you just did\n\
\n", name);
{ "zero", 0, 0, 'z' },
{ "help", 0, 0, '\1' },
{ "version", 0, 0, '\2' },
- { "diff-stat", 0, 0, 'D' },
+ { "sleep", 0, 0, 'Z' },
+ { "since", 1, 0, 'S' },
{ NULL, 0, 0, 0 }
};
opt_srv = 0,
opt_clt = 0,
opt_prt = 0,
- opt_diffstat = 0;
+ opt_sleep = 0,
+ opt_since = 0;
int c;
- char *progname;
+ char *progname,
+ *serverfile = NFSSRVSTAT,
+ *clientfile = NFSCLTSTAT;
+
+ struct statinfo *serverinfo = srvinfo,
+ *serverinfo_tmp = srvinfo_old,
+ *clientinfo = cltinfo,
+ *clientinfo_tmp = cltinfo_old;
struct sigaction act = {
.sa_handler = unpause,
else
progname = argv[0];
- while ((c = getopt_long(argc, argv, "234acmno:Dvrsz\1\2", longopts, NULL)) != EOF) {
+ while ((c = getopt_long(argc, argv, "234acmno:ZS:vrsz\1\2", longopts, NULL)) != EOF) {
switch (c) {
case 'a':
fprintf(stderr, "nfsstat: nfs acls are not yet supported.\n");
return 2;
}
break;
- case 'D':
- opt_diffstat = 1;
+ case 'Z':
+ opt_sleep = 1;
+ break;
+ case 'S':
+ opt_since = 1;
+ serverfile = optarg;
+ clientfile = optarg;
break;
case '2':
case '3':
"server.\n");
}
+ if (opt_since || opt_sleep) {
+ serverinfo = srvinfo_old;
+ serverinfo_tmp = srvinfo;
+ clientinfo = cltinfo_old;
+ clientinfo_tmp = cltinfo;
+ }
+
if (opt_srv)
- get_stats(NFSSRVSTAT, srvinfo, &opt_srv, opt_clt, "Server");
+ get_stats(serverfile, serverinfo, &opt_srv, opt_clt, 1);
if (opt_clt)
- get_stats(NFSCLTSTAT, cltinfo, &opt_clt, opt_srv, "Client");
+ get_stats(clientfile, clientinfo, &opt_clt, opt_srv, 0);
- /* save stat snapshots; wait for signal; then diff current and saved stats */
- if (opt_diffstat) {
+ if (opt_sleep) {
starttime = time(NULL);
printf("Collecting statistics; press CTRL-C to view results from interval (i.e., from pause to CTRL-C).\n");
- if (opt_srv)
- copy_stats(srvinfo_tmp, srvinfo);
- if (opt_clt)
- copy_stats(cltinfo_tmp, cltinfo);
if (sigaction(SIGINT, &act, NULL) != 0) {
fprintf(stderr, "Error: couldn't register for signal and pause.\n");
return 1;
}
pause();
+ }
+
+ if (opt_since || opt_sleep) {
if (opt_srv) {
- get_stats(NFSSRVSTAT, srvinfo, &opt_srv, opt_clt, "Server");
- diff_stats(srvinfo, srvinfo_tmp);
+ get_stats(NFSSRVSTAT, serverinfo_tmp, &opt_srv, opt_clt, 1);
+ diff_stats(serverinfo_tmp, serverinfo, 1);
}
if (opt_clt) {
- get_stats(NFSCLTSTAT, cltinfo, &opt_clt, opt_srv, "Client");
- diff_stats(cltinfo, cltinfo_tmp);
+ get_stats(NFSCLTSTAT, clientinfo_tmp, &opt_clt, opt_srv, 0);
+ diff_stats(clientinfo_tmp, clientinfo, 0);
}
}
if (opt_srv) {
if (opt_prt & PRNT_NET) {
print_numbers(
- "Server packet stats:\n"
+ LABEL_srvnet
"packets udp tcp tcpconn\n",
srvnetinfo, 4
);
}
if (opt_prt & PRNT_RPC) {
print_numbers(
- "Server rpc stats:\n"
+ LABEL_srvrpc
"calls badcalls badauth badclnt xdrcall\n",
srvrpcinfo, 5
);
}
if (opt_prt & PRNT_RC) {
print_numbers(
- "Server reply cache:\n"
+ LABEL_srvrc
"hits misses nocache\n",
srvrcinfo, 3
);
srvfhinfo[5]=srvfhinfo[0]; /* relocate 'stale' */
print_numbers(
- "Server file handle cache:\n"
+ LABEL_srvfh
"lookup anon ncachedir ncachedir stale\n",
srvfhinfo + 1, 5);
} else /* < 2.4 */
print_numbers(
- "Server file handle cache:\n"
+ LABEL_srvfh
"lookup anon ncachedir ncachedir stale\n",
srvrcinfo + 3, 5);
printf("\n");
if (opt_prt & PRNT_CALLS) {
if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc2info)))
print_callstats(
- "Server nfs v2:\n",
- nfsv2name, srvproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
+ LABEL_srvproc2,
+ nfsv2name, srvproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
);
if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc3info)))
print_callstats(
- "Server nfs v3:\n",
+ LABEL_srvproc3,
nfsv3name, srvproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
);
if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc4info))) {
print_callstats(
- "Server nfs v4:\n",
+ LABEL_srvproc4,
nfssrvproc4name, srvproc4info + 1, sizeof(nfssrvproc4name)/sizeof(char *)
);
print_callstats(
- "Server nfs v4 operations:\n",
+ LABEL_srvproc4ops,
nfssrvproc4opname, srvproc4opsinfo + 1, sizeof(nfssrvproc4opname)/sizeof(char *)
);
}
if (opt_clt) {
if (opt_prt & PRNT_NET) {
print_numbers(
- "Client packet stats:\n"
+ LABEL_cltnet
"packets udp tcp tcpconn\n",
cltnetinfo, 4
);
}
if (opt_prt & PRNT_RPC) {
print_numbers(
- "Client rpc stats:\n"
+ LABEL_cltrpc
"calls retrans authrefrsh\n",
cltrpcinfo, 3
);
if (opt_prt & PRNT_CALLS) {
if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc2info)))
print_callstats(
- "Client nfs v2:\n",
+ LABEL_cltproc2,
nfsv2name, cltproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
);
if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc3info)))
print_callstats(
- "Client nfs v3:\n",
+ LABEL_cltproc3,
nfsv3name, cltproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
);
if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc4info)))
print_callstats(
- "Client nfs v4:\n",
+ LABEL_cltproc4,
nfscltproc4name, cltproc4info + 1, sizeof(nfscltproc4name)/sizeof(char *)
);
}
printf("\n");
}
-
+/* returns 0 on success, 1 otherwise */
static int
-parse_statfile(const char *name, struct statinfo *statp)
+parse_raw_statfile(const char *name, struct statinfo *statp)
{
char buffer[4096], *next;
FILE *fp;
*/
if ((fp = fopen(name, "r")) == NULL) {
// fprintf(stderr, "Warning: %s: %m\n", name);
- return 0;
+ return 1;
}
while (fgets(buffer, sizeof(buffer), fp) != NULL) {
}
fclose(fp);
- return 1;
+ return 0;
+}
+
+/* returns 0 on success, 1 otherwise */
+static int
+parse_pretty_statfile(const char *filename, struct statinfo *info)
+{
+ int numvals, curindex, numconsumed, n, sum, err = 1;
+ char buf[4096], *bufp, *fmt, is_proc;
+ FILE *fp = NULL;
+ struct statinfo *ip;
+
+ if ((fp = fopen(filename, "r")) == NULL)
+ //err(2, "Unable to open statfile '%s'.\n", filename);
+ goto out;
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ for (ip = info; ip->tag; ip++) {
+ if (strcmp(buf, ip->label))
+ continue;
+
+ sum = 0;
+ numvals = ip->nrvals - 1;
+ is_proc = strncmp("proc", ip->tag, 4) ? 0 : 1;
+ if (is_proc) {
+ fmt = " %u %*u%% %n";
+ curindex = 1;
+ ip->valptr[0] = 0;
+ } else {
+ fmt = " %u %n";
+ curindex = 0;
+ }
+more_stats:
+ /* get (and skip) header */
+ if (fgets(buf, sizeof(buf), fp) == NULL) {
+ fprintf(stderr, "Failed to locate header after "
+ "label for '%s' in %s.\n",
+ ip->tag, filename);
+ goto out;
+ }
+ /* no header -- done with this "tag" */
+ if (*buf == '\n') {
+ ip->valptr[numvals] = sum;
+ break;
+ }
+ /* get stats */
+ if (fgets(buf, sizeof(buf), fp) == NULL) {
+ fprintf(stderr, "Failed to locate stats after "
+ "header for '%s' in %s.\n",
+ ip->tag, filename);
+ goto out;
+ }
+ bufp = buf;
+ for (; curindex < numvals; curindex++) {
+ n = sscanf(bufp, fmt, &ip->valptr[curindex],
+ &numconsumed);
+ if (n != 1)
+ break;
+ if (is_proc) {
+ ip->valptr[0]++;
+ sum++;
+ }
+ sum += ip->valptr[curindex];
+ bufp += numconsumed;
+ }
+ goto more_stats;
+ }
+ }
+ err = 0;
+out:
+ if (fp)
+ fclose(fp);
+ return err;
}
static int
}
static void
-get_stats(const char *file, statinfo *info, int *opt, int other_opt, const char *label)
+get_stats(const char *file, struct statinfo *info, int *opt, int other_opt,
+ int is_srv)
{
- if (!parse_statfile(file, info)) {
+ FILE *fp;
+ char buf[10];
+ int err = 1;
+ char *label = is_srv ? "Server" : "Client";
+
+ /* try to guess what type of stat file we're dealing with */
+ if ((fp = fopen(file, "r")) == NULL)
+ goto out;
+ if (fgets(buf, 10, fp) == NULL)
+ goto out;
+ if (!strncmp(buf, "net ", 4)) {
+ /* looks like raw client stats */
+ if (is_srv) {
+ fprintf(stderr, "Warning: no server info present in "
+ "raw client stats file.\n");
+ *opt = 0;
+ } else
+ err = parse_raw_statfile(file, info);
+ } else if (!strncmp(buf, "rc ", 3)) {
+ /* looks like raw server stats */
+ if (!is_srv) {
+ fprintf(stderr, "Warning: no client info present in "
+ "raw server stats file.\n");
+ *opt = 0;
+ } else
+ err = parse_raw_statfile(file, info);
+ } else
+ /* looks like pretty client and server stats */
+ err = parse_pretty_statfile(file, info);
+out:
+ if (fp)
+ fclose(fp);
+ if (err) {
if (!other_opt) {
- fprintf(stderr, "Warning: No %s Stats (%s: %m). \n", label, file);
+ fprintf(stderr, "Error: No %s Stats (%s: %m). \n",
+ label, file);
exit(2);
}
*opt = 0;
return (info[0] && info[info[0] + 1] > info[0]);
}
-/* clone 'src' to 'dest' */
-static void
-copy_stats(struct statinfo *dest, struct statinfo *src)
-{
- int i, j;
-
- for (i = 0; src[i].tag; i++) {
- dest[i].tag = src[i].tag;
- dest[i].nrvals = src[i].nrvals;
- for (j = 0; j < dest[i].nrvals; j++)
- dest[i].valptr[j] = src[i].valptr[j];
- }
-}
-
/*
* take the difference of each individual stat value in 'new' and 'old'
* and store the results back into 'new'
*/
static void
-diff_stats(struct statinfo *new, struct statinfo *old)
+diff_stats(struct statinfo *new, struct statinfo *old, int is_srv)
{
- int i, j, is_srv, should_diff;
+ int i, j, nodiff_first_index, should_diff;
+
+ /*
+ * Different stat types have different formats in the /proc
+ * files: for the proc2/3/4-type stats, the first entry has
+ * the total number of subsequent entries; one does not want
+ * to diff that first entry. The other stat types aren't like
+ * this. So, we diff a given entry if it's not of one of the
+ * procX types ("i" < 2 for clt, < 4 for srv), or if it's not
+ * the first entry ("j" > 0).
+ */
+ nodiff_first_index = 2 + (2 * is_srv);
- is_srv = (new == srvinfo);
for (i = 0; old[i].tag; i++) {
for (j = 0; j < new[i].nrvals; j++) {
- /* skip items in valptr that shouldn't be changed */
- should_diff = (i < (3 + is_srv) || j > 0);
+ should_diff = (i < nodiff_first_index || j > 0);
if (should_diff)
new[i].valptr[j] -= old[i].valptr[j];
}
+
+ /*
+ * Make sure that the "totals" entry (last value in
+ * each stat array) for the procX-type stats has the
+ * "numentries" entry's (first value in procX-type
+ * stat arrays) constant value added-back after the
+ * diff -- i.e., it should always be included in the
+ * total.
+ */
+ if (!strncmp("proc", new[i].tag, 4) && old[i].valptr[0])
+ new[i].valptr[new[i].nrvals - 1] += new[i].valptr[0];
}
}
projects / nfs-utils.git / blobdiff