#include <config.h>
#endif
-#define NFSSVCSTAT "/proc/net/rpc/nfsd"
+#define NFSSRVSTAT "/proc/net/rpc/nfsd"
#define NFSCLTSTAT "/proc/net/rpc/nfs"
#define MOUNTSFILE "/proc/mounts"
#include <string.h>
#include <fcntl.h>
#include <errno.h>
+#include <signal.h>
+#include <time.h>
#define MAXNRVALS 32
-static unsigned int svcv2info[20]; /* NFSv2 call counts ([0] == 18) */
-static unsigned int cltv2info[20]; /* NFSv2 call counts ([0] == 18) */
-static unsigned int svcv3info[24]; /* NFSv3 call counts ([0] == 22) */
-static unsigned int cltv3info[24]; /* NFSv3 call counts ([0] == 22) */
-static unsigned int svcv4info[4]; /* NFSv4 call counts ([0] == 2) */
-static unsigned int cltv4info[34]; /* NFSv4 call counts ([0] == 32) */
-static unsigned int svcv4opinfo[42];/* NFSv4 call counts ([0] == 40) */
-static unsigned int svcnetinfo[5]; /* 0 # of received packets
- * 1 UDP packets
- * 2 TCP packets
- * 3 TCP connections
- */
-static unsigned int cltnetinfo[5]; /* 0 # of received packets
- * 1 UDP packets
- * 2 TCP packets
- * 3 TCP connections
- */
-
-static unsigned int svcrpcinfo[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]; /* 0 total # of RPC calls
- * 1 retransmitted calls
- * 2 cred refreshs
- */
-
-static unsigned int svcrcinfo[9]; /* 0 repcache hits
- * 1 repcache hits
- * 2 uncached reqs
- * (for pre-2.4 kernels:)
- * 3 FH lookups
- * 4 'anon' FHs
- * 5 noncached non-directories
- * 6 noncached directories
- * 7 stale
- */
-
-static unsigned int svcfhinfo[7]; /* (for kernels >= 2.4.0)
- * 0 stale
- * 1 FH lookups
- * 2 'anon' FHs
- * 3 noncached directories
- * 4 noncached non-directories
- * leave hole to relocate stale for order
- * compatability.
- */
+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_old[5]; /* 0 # of received packets
+ * 1 UDP packets
+ * 2 TCP packets
+ * 3 TCP connections
+ */
+
+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_old[4]; /* 0 total # of RPC calls
+ * 1 retransmitted calls
+ * 2 cred refreshs
+ */
+
+static unsigned int srvrcinfo[9], srvrcinfo_old[9]; /* 0 repcache hits
+ * 1 repcache hits
+ * 2 uncached reqs
+ * (for pre-2.4 kernels:)
+ * 3 FH lookups
+ * 4 'anon' FHs
+ * 5 noncached non-directories
+ * 6 noncached directories
+ * 7 stale
+ */
+
+static unsigned int srvfhinfo[7], srvfhinfo_old[7]; /* (for kernels >= 2.4.0)
+ * 0 stale
+ * 1 FH lookups
+ * 2 'anon' FHs
+ * 3 noncached directories
+ * 4 noncached non-directories
+ * leave hole to relocate stale for order
+ * compatability.
+ */
static const char * nfsv2name[18] = {
"null", "getattr", "setattr", "root", "lookup", "readlink",
"fsstat", "fsinfo", "pathconf", "commit"
};
-static const char * nfssvrv4name[2] = {
+static const char * nfssrvproc4name[2] = {
"null",
"compound",
};
-static const char * nfscltv4name[32] = {
+static const char * nfscltproc4name[35] = {
"null", "read", "write", "commit", "open", "open_conf",
"open_noat", "open_dgrd", "close", "setattr", "fsinfo", "renew",
"setclntid", "confirm", "lock",
"lockt", "locku", "access", "getattr", "lookup", "lookup_root",
"remove", "rename", "link", "symlink", "create", "pathconf",
- "statfs", "readlink", "readdir", "server_caps", "delegreturn",
+ "statfs", "readlink", "readdir", "server_caps", "delegreturn", "getacl",
+ "setacl", "fs_locations"
};
-static const char * nfssvrv4opname[40] = {
+static const char * nfssrvproc4opname[40] = {
"op0-unused", "op1-unused", "op2-future", "access", "close", "commit",
"create", "delegpurge", "delegreturn", "getattr", "getfh", "link",
"lock", "lockt", "locku", "lookup", "lookup_root", "nverify",
"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;
-#define STRUCTSIZE(x) sizeof(x)/sizeof(*x)
-
-static statinfo svcinfo[] = {
- { "net", STRUCTSIZE(svcnetinfo), svcnetinfo },
- { "rpc", STRUCTSIZE(svcrpcinfo), svcrpcinfo },
- { "rc", STRUCTSIZE(svcrcinfo), svcrcinfo },
- { "fh", STRUCTSIZE(svcfhinfo), svcfhinfo },
- { "proc2", STRUCTSIZE(svcv2info), svcv2info },
- { "proc3", STRUCTSIZE(svcv3info), svcv3info },
- { "proc4", STRUCTSIZE(svcv4info), svcv4info },
- { "proc4ops", STRUCTSIZE(svcv4opinfo),svcv4opinfo},
- { NULL, 0, NULL }
-};
-
-static statinfo cltinfo[] = {
- { "net", STRUCTSIZE(cltnetinfo), cltnetinfo },
- { "rpc", STRUCTSIZE(cltrpcinfo), cltrpcinfo },
- { "proc2", STRUCTSIZE(cltv2info), cltv2info },
- { "proc3", STRUCTSIZE(cltv3info), cltv3info },
- { "proc4", STRUCTSIZE(cltv4info), cltv4info },
- { NULL, 0, NULL }
-};
+/*
+ * We now build the arrays of statinfos using macros, which will make it easier
+ * 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, 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(net,s), \
+ SRV(rpc,s), \
+ SRV(rc,s), \
+ SRV(fh,s), \
+ SRV(proc2,s), \
+ SRV(proc3,s),\
+ SRV(proc4,s), \
+ SRV(proc4ops,s),\
+ { NULL, NULL, 0, NULL }\
+ }
+#define DECLARE_CLT(n, s...) static statinfo n##s[] = { \
+ CLT(net,s), \
+ CLT(rpc,s), \
+ CLT(proc2,s),\
+ CLT(proc3,s), \
+ CLT(proc4,s),\
+ { NULL, NULL, 0, NULL }\
+ }
+DECLARE_SRV(srvinfo);
+DECLARE_SRV(srvinfo, _old);
+DECLARE_CLT(cltinfo);
+DECLARE_CLT(cltinfo, _old);
static void print_numbers(const char *, unsigned int *,
unsigned int);
static statinfo *get_stat_info(const char *, struct statinfo *);
-static int mounts(const char *);
+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 diff_stats(struct statinfo *, struct statinfo *, int);
+static void unpause(int);
+
+static time_t starttime;
#define PRNT_CALLS 0x0001
#define PRNT_RPC 0x0002
-v, --verbose, --all\tSame as '-o all'\n\
-r, --rpc\t\tShow RPC statistics\n\
-n, --nfs\t\tShow NFS statistics\n\
+ -Z, --sleep\tSaves stats, pauses, diffs current and saved\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' },
+ { "sleep", 0, 0, 'Z' },
{ NULL, 0, 0, 0 }
};
int opt_all = 0,
opt_srv = 0,
opt_clt = 0,
- opt_prt = 0;
+ opt_prt = 0,
+ opt_sleep = 0;
int c;
char *progname;
-
+
+ struct statinfo *serverinfo = srvinfo,
+ *serverinfo_tmp = srvinfo_old,
+ *clientinfo = cltinfo,
+ *clientinfo_tmp = cltinfo_old;
+
+ struct sigaction act = {
+ .sa_handler = unpause,
+ .sa_flags = SA_ONESHOT,
+ };
+
if ((progname = strrchr(argv[0], '/')))
progname++;
else
progname = argv[0];
- while ((c = getopt_long(argc, argv, "234acmno:vrsz\1\2", longopts, NULL)) != EOF) {
+ while ((c = getopt_long(argc, argv, "234acmno:Zvrsz\1\2", longopts, NULL)) != EOF) {
switch (c) {
case 'a':
fprintf(stderr, "nfsstat: nfs acls are not yet supported.\n");
return 2;
}
break;
+ case 'Z':
+ opt_sleep = 1;
+ break;
case '2':
case '3':
case '4':
"server.\n");
}
+ if (opt_sleep) {
+ serverinfo = srvinfo_old;
+ serverinfo_tmp = srvinfo;
+ clientinfo = cltinfo_old;
+ clientinfo_tmp = cltinfo;
+ }
+
if (opt_srv)
- get_stats(NFSSVCSTAT, svcinfo, &opt_srv, opt_clt, "Server");
+ get_stats(NFSSRVSTAT, serverinfo, &opt_srv, opt_clt, 1);
if (opt_clt)
- get_stats(NFSCLTSTAT, cltinfo, &opt_clt, opt_srv, "Client");
+ get_stats(NFSCLTSTAT, clientinfo, &opt_clt, opt_srv, 0);
+
+ /* save stat snapshots; wait for signal; then diff current and saved stats */
+ 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 (sigaction(SIGINT, &act, NULL) != 0) {
+ fprintf(stderr, "Error: couldn't register for signal and pause.\n");
+ return 1;
+ }
+ pause();
+ if (opt_srv) {
+ get_stats(NFSSRVSTAT, serverinfo_tmp, &opt_srv, opt_clt, 1);
+ diff_stats(serverinfo_tmp, serverinfo, 1);
+ }
+ if (opt_clt) {
+ 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",
- svcnetinfo, 4
+ srvnetinfo, 4
);
printf("\n");
}
if (opt_prt & PRNT_RPC) {
print_numbers(
- "Server rpc stats:\n"
+ LABEL_srvrpc
"calls badcalls badauth badclnt xdrcall\n",
- svcrpcinfo, 5
+ srvrpcinfo, 5
);
printf("\n");
}
if (opt_prt & PRNT_RC) {
print_numbers(
- "Server reply cache:\n"
+ LABEL_srvrc
"hits misses nocache\n",
- svcrcinfo, 3
+ srvrcinfo, 3
);
printf("\n");
}
* We preseve the 2.2 order
*/
if (opt_prt & PRNT_FH) {
- if (get_stat_info("fh", svcinfo)) { /* >= 2.4 */
- int t = svcfhinfo[3];
- svcfhinfo[3]=svcfhinfo[4];
- svcfhinfo[4]=t;
+ if (get_stat_info("fh", srvinfo)) { /* >= 2.4 */
+ int t = srvfhinfo[3];
+ srvfhinfo[3]=srvfhinfo[4];
+ srvfhinfo[4]=t;
- svcfhinfo[5]=svcfhinfo[0]; /* relocate 'stale' */
+ srvfhinfo[5]=srvfhinfo[0]; /* relocate 'stale' */
print_numbers(
- "Server file handle cache:\n"
+ LABEL_srvfh
"lookup anon ncachedir ncachedir stale\n",
- svcfhinfo + 1, 5);
+ srvfhinfo + 1, 5);
} else /* < 2.4 */
print_numbers(
- "Server file handle cache:\n"
+ LABEL_srvfh
"lookup anon ncachedir ncachedir stale\n",
- svcrcinfo + 3, 5);
+ srvrcinfo + 3, 5);
printf("\n");
}
if (opt_prt & PRNT_CALLS) {
- if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(svcv2info)))
+ if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc2info)))
print_callstats(
- "Server nfs v2:\n",
- nfsv2name, svcv2info + 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(svcv3info)))
+ if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc3info)))
print_callstats(
- "Server nfs v3:\n",
- nfsv3name, svcv3info + 1, sizeof(nfsv3name)/sizeof(char *)
+ LABEL_srvproc3,
+ nfsv3name, srvproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
);
- if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(svcv4info))) {
+ if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(srvproc4info))) {
print_callstats(
- "Server nfs v4:\n",
- nfssvrv4name, svcv4info + 1, sizeof(nfssvrv4name)/sizeof(char *)
+ LABEL_srvproc4,
+ nfssrvproc4name, srvproc4info + 1, sizeof(nfssrvproc4name)/sizeof(char *)
);
print_callstats(
- "Server nfs v4 operations:\n",
- nfssvrv4opname, svcv4opinfo + 1, sizeof(nfssvrv4opname)/sizeof(char *)
+ 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
);
printf("\n");
}
if (opt_prt & PRNT_CALLS) {
- if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(cltv2info)))
+ if ((opt_prt & PRNT_V2) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc2info)))
print_callstats(
- "Client nfs v2:\n",
- nfsv2name, cltv2info + 1, sizeof(nfsv2name)/sizeof(char *)
+ LABEL_cltproc2,
+ nfsv2name, cltproc2info + 1, sizeof(nfsv2name)/sizeof(char *)
);
- if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(cltv3info)))
+ if ((opt_prt & PRNT_V3) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc3info)))
print_callstats(
- "Client nfs v3:\n",
- nfsv3name, cltv3info + 1, sizeof(nfsv3name)/sizeof(char *)
+ LABEL_cltproc3,
+ nfsv3name, cltproc3info + 1, sizeof(nfsv3name)/sizeof(char *)
);
- if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(cltv4info)))
+ if ((opt_prt & PRNT_V4) || ((opt_prt & PRNT_AUTO) && has_stats(cltproc4info)))
print_callstats(
- "Client nfs v4:\n",
- nfscltv4name, cltv4info + 1, sizeof(nfscltv4name)/sizeof(char *)
+ LABEL_cltproc4,
+ nfscltproc4name, cltproc4info + 1, sizeof(nfscltproc4name)/sizeof(char *)
);
}
}
ip->valptr[i] = atoi(sp);
total += ip->valptr[i];
}
- ip->valptr[i] = total;
+ ip->valptr[cnt - 1] = total;
}
fclose(fp);
}
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)
{
+ const char *label = is_srv ? "Server" : "Client";
+
if (!parse_statfile(file, info)) {
if (!other_opt) {
fprintf(stderr, "Warning: No %s Stats (%s: %m). \n", label, file);
}
}
+/*
+ * This is for proc2/3/4-type stats, where, in the /proc files, the first entry's value
+ * denotes the number of subsequent entries. statinfo value arrays contain an additional
+ * field at the end which contains the sum of all previous elements in the array -- so,
+ * there are stats if the sum's greater than the entry-count.
+ */
static int
has_stats(const unsigned int *info)
{
- return (info[0] && info[info[0] + 1] != info[0]);
+ return (info[0] && info[info[0] + 1] > info[0]);
+}
+
+/*
+ * 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, int is_srv)
+{
+ 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);
+
+ for (i = 0; old[i].tag; i++) {
+ for (j = 0; j < new[i].nrvals; j++) {
+ 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))
+ new[i].valptr[new[i].nrvals - 1] += new[i].valptr[0];
+ }
+}
+
+static void
+unpause(int sig)
+{
+ double time_diff;
+ int minutes, seconds;
+ time_t endtime;
+
+ endtime = time(NULL);
+ time_diff = difftime(endtime, starttime);
+ minutes = time_diff / 60;
+ seconds = (int)time_diff % 60;
+ printf("Signal received; displaying (only) statistics gathered over the last %d minutes, %d seconds:\n\n", minutes, seconds);
}
projects / nfs-utils.git / blobdiff