diff options
Diffstat (limited to 'utils/nfsstat/nfsstat.c')
| -rw-r--r-- | utils/nfsstat/nfsstat.c | 1183 |
1 files changed, 1183 insertions, 0 deletions
diff --git a/utils/nfsstat/nfsstat.c b/utils/nfsstat/nfsstat.c new file mode 100644 index 0000000..ca84532 --- /dev/null +++ b/utils/nfsstat/nfsstat.c @@ -0,0 +1,1183 @@ +/* + * nfsstat.c Output NFS statistics + * + * Copyright (C) 1995-2005 Olaf Kirch <okir@suse.de> + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#define NFSSRVSTAT "/proc/net/rpc/nfsd" +#define NFSCLTSTAT "/proc/net/rpc/nfs" + +#define MOUNTSFILE "/proc/mounts" + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <getopt.h> +#include <string.h> +#include <fcntl.h> +#include <errno.h> +#include <signal.h> +#include <time.h> + +#define MAXNRVALS 32 + +enum { + SRVPROC2_SZ = 18, + CLTPROC2_SZ = 18, + SRVPROC3_SZ = 22, + CLTPROC3_SZ = 22, + SRVPROC4_SZ = 2, + CLTPROC4_SZ = 59, + SRVPROC4OPS_SZ = 71, +}; + +static unsigned int srvproc2info[SRVPROC2_SZ+2], + srvproc2info_old[SRVPROC2_SZ+2]; /* NFSv2 call counts ([0] == 18) */ +static unsigned int cltproc2info[CLTPROC2_SZ+2], + cltproc2info_old[CLTPROC2_SZ+2]; /* NFSv2 call counts ([0] == 18) */ +static unsigned int srvproc3info[SRVPROC3_SZ+2], + srvproc3info_old[SRVPROC3_SZ+2]; /* NFSv3 call counts ([0] == 22) */ +static unsigned int cltproc3info[CLTPROC3_SZ+2], + cltproc3info_old[CLTPROC3_SZ+2]; /* NFSv3 call counts ([0] == 22) */ +static unsigned int srvproc4info[SRVPROC4_SZ+2], + srvproc4info_old[SRVPROC4_SZ+2]; /* NFSv4 call counts ([0] == 2) */ +static unsigned int cltproc4info[CLTPROC4_SZ+2], + cltproc4info_old[CLTPROC4_SZ+2]; /* NFSv4 call counts ([0] == 49) */ +static unsigned int srvproc4opsinfo[SRVPROC4OPS_SZ+2], + srvproc4opsinfo_old[SRVPROC4OPS_SZ+2]; /* NFSv4 call counts ([0] == 59) */ +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 unsigned int srvioinfo[3], srvioinfo_old[3]; /* 0 bytes read + * 1 bytes written + */ + +static unsigned int srvrainfo[13], srvrainfo_old[13]; /* 0 ra cache size + * 1..11 depth of ra cache hit + * 12 ra cache misses + */ + +static const char * nfsv2name[SRVPROC2_SZ] = { + "null", "getattr", "setattr", "root", "lookup", "readlink", + "read", "wrcache", "write", "create", "remove", "rename", + "link", "symlink", "mkdir", "rmdir", "readdir", "fsstat" +}; + +static const char * nfsv3name[SRVPROC3_SZ] = { + "null", "getattr", "setattr", "lookup", "access", "readlink", + "read", "write", "create", "mkdir", "symlink", "mknod", + "remove", "rmdir", "rename", "link", "readdir", "readdirplus", + "fsstat", "fsinfo", "pathconf", "commit" +}; + +static const char * nfssrvproc4name[SRVPROC4_SZ] = { + "null", + "compound", +}; + +static const char * nfscltproc4name[CLTPROC4_SZ] = { + "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", "getacl", + "setacl", "fs_locations", + "rel_lkowner", "secinfo", "fsid_present", + /* nfsv4.1 client ops */ + "exchange_id", + "create_session", + "destroy_session", + "sequence", + "get_lease_time", + "reclaim_comp", + "layoutget", + "getdevinfo", + "layoutcommit", + "layoutreturn", + "secinfo_no", + "test_stateid", + "free_stateid", + "getdevicelist", + "bind_conn_to_ses", + "destroy_clientid", + /* nfsv4.2 client ops */ + "seek", + "allocate", + "deallocate", + "layoutstats", + "clone", +}; + +static const char * nfssrvproc4opname[SRVPROC4OPS_SZ] = { + "op0-unused", "op1-unused", "op2-future", "access", "close", "commit", + "create", "delegpurge", "delegreturn", "getattr", "getfh", "link", + "lock", "lockt", "locku", "lookup", "lookup_root", "nverify", + "open", "openattr", "open_conf", "open_dgrd", "putfh", "putpubfh", + "putrootfh", "read", "readdir", "readlink", "remove", "rename", + "renew", "restorefh", "savefh", "secinfo", "setattr", "setcltid", + "setcltidconf", "verify", "write", "rellockowner", + /* nfsv4.1 server ops */ + "bc_ctl", + "bind_conn", + "exchange_id", + "create_ses", + "destroy_ses", + "free_stateid", + "getdirdeleg", + "getdevinfo", + "getdevlist", + "layoutcommit", + "layoutget", + "layoutreturn", + "secinfononam", + "sequence", + "set_ssv", + "test_stateid", + "want_deleg", + "destroy_clid", + "reclaim_comp", + /* nfsv4.2 server ops */ + "allocate", + "copy", + "copy_notify", + "deallocate", + "ioadvise", + "layouterror", + "layoutstats", + "offloadcancel", + "offloadstatus", + "readplus", + "seek", + "write_same", +}; + +#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_srvio "Server io stats:\n" +#define LABEL_srvra "Server read ahead 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 --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(io,s), \ + SRV(ra,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_all_stats(int, int, int); +static void print_server_stats(int); +static void print_client_stats(int); +static void print_stats_list(int, int, int); +static void print_numbers(const char *, unsigned int *, + unsigned int); +static void print_callstats(const char *, const char **, + unsigned int *, unsigned int); +static void print_callstats_list(const char *, const char **, + unsigned int *, unsigned int); +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 *, struct statinfo *, int *, int, + int); +static int has_stats(const unsigned int *, int); +static int has_rpcstats(const unsigned int *, int); +static void diff_stats(struct statinfo *, struct statinfo *, int); +static void unpause(int); +static void update_old_counters(struct statinfo *, struct statinfo *); + +static time_t starttime; + +#define PRNT_CALLS 0x0001 +#define PRNT_RPC 0x0002 +#define PRNT_NET 0x0004 +#define PRNT_FH 0x0008 +#define PRNT_RC 0x0010 +#define PRNT_IO 0x0020 +#define PRNT_RA 0x0040 +#define PRNT_AUTO 0x1000 +#define PRNT_V2 0x2000 +#define PRNT_V3 0x4000 +#define PRNT_V4 0x8000 +#define PRNT_ALL 0x0fff + +int versions[] = { + PRNT_V2, + PRNT_V3, + PRNT_V4 +}; + +static void usage(char *name) +{ + printf("Usage: %s [OPTION]...\n\ +\n\ + -m, --mounts Show statistics on mounted NFS filesystems\n\ + -c, --client Show NFS client statistics\n\ + -s, --server Show NFS server statistics\n\ + -2 Show NFS version 2 statistics\n\ + -3 Show NFS version 3 statistics\n\ + -4 Show NFS version 4 statistics\n\ + -o [facility] Show statistics on particular facilities.\n\ + nfs NFS protocol information\n\ + rpc General RPC information\n\ + net Network layer statistics\n\ + fh Usage information on the server's file handle cache\n\ + io Usage information on the server's io statistics\n\ + ra Usage information on the server's read ahead cache\n\ + rc Usage information on the server's request reply cache\n\ + all Select all of the above\n\ + -v, --verbose, --all Same as '-o all'\n\ + -r, --rpc Show RPC statistics\n\ + -n, --nfs Show NFS statistics\n\ + -Z[#], --sleep[=#] Collects stats until interrupted.\n\ + Cumulative stats are then printed\n\ + If # is provided, stats will be output every\n\ + # seconds.\n\ + -S, --since file Shows difference between current stats and those in 'file'\n\ + -l, --list Prints stats in list format\n\ + --version Show program version\n\ + --help What you just did\n\ +\n", name); + exit(0); +} + +static struct option longopts[] = +{ + { "acl", 0, 0, 'a' }, + { "all", 0, 0, 'v' }, + { "auto", 0, 0, '\3' }, + { "client", 0, 0, 'c' }, + { "mounts", 0, 0, 'm' }, + { "nfs", 0, 0, 'n' }, + { "rpc", 0, 0, 'r' }, + { "server", 0, 0, 's' }, + { "verbose", 0, 0, 'v' }, + { "zero", 0, 0, 'z' }, + { "help", 0, 0, '\1' }, + { "version", 0, 0, '\2' }, + { "sleep", 2, 0, 'Z' }, + { "since", 1, 0, 'S' }, + { "list", 0, 0, 'l' }, + { NULL, 0, 0, 0 } +}; +int opt_sleep; + +int +main(int argc, char **argv) +{ + int opt_all = 0, + opt_srv = 0, + opt_clt = 0, + opt_prt = 0, + sleep_time = 0, + opt_list =0, + opt_since = 0; + int c; + 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, + .sa_flags = SA_RESETHAND, + }; + + if ((progname = strrchr(argv[0], '/'))) + progname++; + else + progname = argv[0]; + + while ((c = getopt_long(argc, argv, "234acmno:Z::S:vrslz\1\2", longopts, NULL)) != EOF) { + switch (c) { + case 'a': + fprintf(stderr, "nfsstat: nfs acls are not yet supported.\n"); + return 1; + case 'c': + opt_clt = 1; + break; + case 'n': + opt_prt |= PRNT_CALLS; + break; + case 'o': + if (!strcmp(optarg, "nfs")) + opt_prt |= PRNT_CALLS; + else if (!strcmp(optarg, "rpc")) + opt_prt |= PRNT_RPC; + else if (!strcmp(optarg, "net")) + opt_prt |= PRNT_NET; + else if (!strcmp(optarg, "rc")) + opt_prt |= PRNT_RC; + else if (!strcmp(optarg, "fh")) + opt_prt |= PRNT_FH; + else if (!strcmp(optarg, "io")) + opt_prt |= PRNT_IO; + else if (!strcmp(optarg, "ra")) + opt_prt |= PRNT_RA; + else if (!strcmp(optarg, "all")) + opt_prt |= PRNT_CALLS | PRNT_RPC | PRNT_NET | PRNT_RC | PRNT_FH | PRNT_IO | PRNT_RA; + else { + fprintf(stderr, "nfsstat: unknown category: " + "%s\n", optarg); + return 2; + } + break; + case 'Z': + opt_sleep = 1; + if (optarg) { + sleep_time = atoi(optarg); + } + break; + case 'S': + opt_since = 1; + serverfile = optarg; + clientfile = optarg; + break; + case '2': + case '3': + case '4': + opt_prt |= versions[c - '2']; + break; + case 'v': + opt_all = 1; + break; + case '\3': + opt_prt |= PRNT_AUTO; + break; + case 'r': + opt_prt |= PRNT_RPC; + break; + case 's': + opt_srv = 1; + break; + case 'l': + opt_list = 1; + break; + case 'z': + fprintf(stderr, "nfsstat: zeroing of nfs statistics " + "not yet supported\n"); + return 2; + case 'm': + return ! mounts(MOUNTSFILE); + case '\1': + usage(progname); + return 0; + case '\2': + fprintf(stdout, "nfsstat: " VERSION "\n"); + return 0; + default: + printf("Try `%s --help' for more information.\n", progname); + return 1; + } + } + + if (opt_all) { + opt_srv = opt_clt = 1; + opt_prt |= PRNT_ALL; + } + if (!(opt_srv + opt_clt)) + opt_srv = opt_clt = 1; + if (!(opt_prt & 0xfff)) { + opt_prt |= PRNT_CALLS + PRNT_RPC; + } + if (!(opt_prt & 0xe000)) { + opt_prt |= PRNT_AUTO; + } + if ((opt_prt & (PRNT_FH|PRNT_RC|PRNT_IO|PRNT_RA)) && !opt_srv) { + fprintf(stderr, + "You requested fh/io/ra/rc " + "statistics while using the -c option.\n" + "This information is available only for the NFS " + "server.\n"); + } + + if (opt_since || opt_sleep) { + serverinfo = srvinfo_old; + serverinfo_tmp = srvinfo; + clientinfo = cltinfo_old; + clientinfo_tmp = cltinfo; + } + + if (opt_srv) + get_stats(serverfile, serverinfo, &opt_srv, opt_clt, 1); + if (opt_clt) + get_stats(clientfile, clientinfo, &opt_clt, opt_srv, 0); + + if (opt_sleep && !sleep_time) { + 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_since || (opt_sleep && !sleep_time)) { + 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(sleep_time) { + while(1) { + 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_list) { + print_stats_list(opt_srv, opt_clt, opt_prt); + } else { + print_all_stats(opt_srv, opt_clt, opt_prt); + } + fflush(stdout); + + if (opt_srv) + update_old_counters(serverinfo_tmp, serverinfo); + if (opt_clt) + update_old_counters(clientinfo_tmp, clientinfo); + + sleep(sleep_time); + } + } else { + if (opt_list) { + print_stats_list(opt_srv, opt_clt, opt_prt); + } else { + print_all_stats(opt_srv, opt_clt, opt_prt); + } + } + + return 0; +} + +static void +print_all_stats (int opt_srv, int opt_clt, int opt_prt) +{ + if (opt_srv) + print_server_stats(opt_prt); + + if (opt_clt) + print_client_stats(opt_prt); +} + +static void +print_server_stats(int opt_prt) +{ + if (opt_prt & PRNT_NET) { + if (opt_sleep && !has_rpcstats(srvnetinfo, 4)) { + } else { + print_numbers( LABEL_srvnet + "packets udp tcp tcpconn\n", + srvnetinfo, 4); + printf("\n"); + } + } + if (opt_prt & PRNT_RPC) { + if (opt_sleep && !has_rpcstats(srvrpcinfo, 5)) { + ; + } else { + print_numbers(LABEL_srvrpc + "calls badcalls badfmt badauth badclnt\n", + srvrpcinfo, 5); + printf("\n"); + } + } + if (opt_prt & PRNT_RC) { + if (opt_sleep && !has_rpcstats(srvrcinfo, 3)) { + ; + } else { + print_numbers(LABEL_srvrc + "hits misses nocache\n", + srvrcinfo, 3); + printf("\n"); + } + } + if (opt_prt & PRNT_IO) { + if (opt_sleep && !has_rpcstats(srvioinfo, 3)) { + ; + } else { + print_numbers(LABEL_srvio + "read write\n", + srvioinfo, 2); + printf("\n"); + } + } + if (opt_prt & PRNT_RA) { + if (opt_sleep && !has_rpcstats(srvrainfo, 3)) { + ; + } else { + print_numbers(LABEL_srvra + "size 0-10% 10-20% 20-30% 30-40% 40-50% 50-60% 60-70% 70-80% 80-90% 90-100% notfound\n", + srvrainfo, 12); + printf("\n"); + } + } + + /* + * 2.2 puts all fh-related info after the 'rc' header + * 2.4 puts all fh-related info after the 'fh' header, but relocates + * 'stale' to the start and swaps dir and nondir :-( + * We preseve the 2.2 order + */ + if (opt_prt & PRNT_FH) { + if (get_stat_info("fh", srvinfo)) { /* >= 2.4 */ + int t = srvfhinfo[3]; + srvfhinfo[3]=srvfhinfo[4]; + srvfhinfo[4]=t; + + srvfhinfo[5]=srvfhinfo[0]; /* relocate 'stale' */ + + print_numbers( + LABEL_srvfh + "lookup anon ncachedir ncachenondir stale\n", + srvfhinfo + 1, 5); + } else /* < 2.4 */ + print_numbers( + LABEL_srvfh + "lookup anon ncachedir ncachedir stale\n", + srvrcinfo + 3, 5); + printf("\n"); + } + if (opt_prt & PRNT_CALLS) { + int has_v2_stats = has_stats(srvproc2info, SRVPROC2_SZ+2); + int has_v3_stats = has_stats(srvproc3info, SRVPROC3_SZ+2); + int has_v4_stats = has_stats(srvproc4info, SRVPROC4_SZ+2); + + if ((opt_prt & PRNT_V2) || + ((opt_prt & PRNT_AUTO) && has_v2_stats)) { + if (!opt_sleep || has_v2_stats) { + print_callstats(LABEL_srvproc2, + nfsv2name, srvproc2info + 1, + sizeof(nfsv2name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V3) || + ((opt_prt & PRNT_AUTO) && has_v3_stats)) { + if (!opt_sleep || has_v3_stats) { + print_callstats(LABEL_srvproc3, + nfsv3name, srvproc3info + 1, + sizeof(nfsv3name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V4) || + ((opt_prt & PRNT_AUTO) && has_v4_stats)) { + if (!opt_sleep || has_v4_stats) { + print_callstats( LABEL_srvproc4, + nfssrvproc4name, srvproc4info + 1, + sizeof(nfssrvproc4name)/sizeof(char *)); + print_callstats(LABEL_srvproc4ops, + nfssrvproc4opname, srvproc4opsinfo + 1, + sizeof(nfssrvproc4opname)/sizeof(char *)); + } + } + } +} +static void +print_client_stats(int opt_prt) +{ + if (opt_prt & PRNT_NET) { + if (opt_sleep && !has_rpcstats(cltnetinfo, 4)) { + ; + } else { + print_numbers(LABEL_cltnet + "packets udp tcp tcpconn\n", + cltnetinfo, 4); + printf("\n"); + } + } + if (opt_prt & PRNT_RPC) { + if (opt_sleep && !has_rpcstats(cltrpcinfo, 3)) { + ; + } else { + print_numbers(LABEL_cltrpc + "calls retrans authrefrsh\n", + cltrpcinfo, 3); + printf("\n"); + } + } + if (opt_prt & PRNT_CALLS) { + int has_v2_stats = has_stats(cltproc2info, CLTPROC2_SZ+2); + int has_v3_stats = has_stats(cltproc3info, CLTPROC3_SZ+2); + int has_v4_stats = has_stats(cltproc4info, CLTPROC4_SZ+2); + if ((opt_prt & PRNT_V2) || + ((opt_prt & PRNT_AUTO) && has_v2_stats)) { + if (!opt_sleep || has_v2_stats) { + print_callstats(LABEL_cltproc2, + nfsv2name, cltproc2info + 1, + sizeof(nfsv2name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V3) || + ((opt_prt & PRNT_AUTO) && has_v3_stats)) { + if (!opt_sleep || has_v3_stats) { + print_callstats(LABEL_cltproc3, + nfsv3name, cltproc3info + 1, + sizeof(nfsv3name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V4) || + ((opt_prt & PRNT_AUTO) && has_v4_stats)) { + if (!opt_sleep || has_v4_stats) { + print_callstats(LABEL_cltproc4, + nfscltproc4name, cltproc4info + 1, + sizeof(nfscltproc4name)/sizeof(char *)); + } + } + } +} + +static void +print_clnt_list(int opt_prt) +{ + if (opt_prt & PRNT_CALLS) { + int has_v2_stats = has_stats(cltproc2info, CLTPROC2_SZ+2); + int has_v3_stats = has_stats(cltproc3info, CLTPROC3_SZ+2); + int has_v4_stats = has_stats(cltproc4info, CLTPROC4_SZ+2); + if ((opt_prt & PRNT_V2) || + ((opt_prt & PRNT_AUTO) && has_v2_stats)) { + if (!opt_sleep || has_v2_stats) { + print_callstats_list("nfs v2 client", + nfsv2name, cltproc2info + 1, + sizeof(nfsv2name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V3) || + ((opt_prt & PRNT_AUTO) && has_v3_stats)) { + if (!opt_sleep || has_v3_stats) { + print_callstats_list("nfs v3 client", + nfsv3name, cltproc3info + 1, + sizeof(nfsv3name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V4) || + ((opt_prt & PRNT_AUTO) && has_v4_stats)) { + if (!opt_sleep || has_v4_stats) { + print_callstats_list("nfs v4 client", + nfscltproc4name, cltproc4info + 1, + sizeof(nfscltproc4name)/sizeof(char *)); + } + } + } +} +static void +print_serv_list(int opt_prt) +{ + if (opt_prt & PRNT_CALLS) { + int has_v2_stats = has_stats(srvproc2info, SRVPROC2_SZ+2); + int has_v3_stats = has_stats(srvproc3info, SRVPROC3_SZ+2); + int has_v4_stats = has_stats(srvproc4info, SRVPROC4_SZ+2); + if ((opt_prt & PRNT_V2) || + ((opt_prt & PRNT_AUTO) && has_v2_stats)) { + if (!opt_sleep || has_v2_stats) { + print_callstats_list("nfs v2 server", + nfsv2name, srvproc2info + 1, + sizeof(nfsv2name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V3) || + ((opt_prt & PRNT_AUTO) && has_v3_stats)) { + if (!opt_sleep || has_v3_stats) { + print_callstats_list("nfs v3 server", + nfsv3name, srvproc3info + 1, + sizeof(nfsv3name)/sizeof(char *)); + } + } + if ((opt_prt & PRNT_V4) || + ((opt_prt & PRNT_AUTO) && has_v4_stats)) { + if (!opt_sleep || has_v4_stats) { + print_callstats_list("nfs v4 server", + nfssrvproc4name, srvproc4info + 1, + sizeof(nfssrvproc4name)/sizeof(char *)); + print_callstats_list("nfs v4 servop", + nfssrvproc4opname, srvproc4opsinfo + 1, + sizeof(nfssrvproc4opname)/sizeof(char *)); + } + } + } +} +static void +print_stats_list(int opt_srv, int opt_clt, int opt_prt) +{ + if (opt_srv) + print_serv_list(opt_prt); + + if (opt_clt) + print_clnt_list(opt_prt); +} + +static statinfo * +get_stat_info(const char *sp, struct statinfo *statp) +{ + struct statinfo *ip; + + for (ip = statp; ip->tag; ip++) { + if (!strcmp(sp, ip->tag)) + return ip; + } + + return NULL; +} + +static void +print_numbers(const char *hdr, unsigned int *info, unsigned int nr) +{ + unsigned int i; + + fputs(hdr, stdout); + for (i = 0; i < nr; i++) + printf("%s%-8u", i? " " : "", info[i]); + printf("\n"); +} + +static void +print_callstats(const char *hdr, const char **names, + unsigned int *info, unsigned int nr) +{ + unsigned long long total; + unsigned long long pct; + unsigned int i, j; + + fputs(hdr, stdout); + for (i = 0, total = 0; i < nr; i++) + total += info[i]; + if (!total) + total = 1; + for (i = 0; i < nr; i += 5) { + for (j = 0; j < 5 && i + j < nr; j++) + printf("%-17s", names[i+j]); + printf("\n"); + for (j = 0; j < 5 && i + j < nr; j++) { + pct = ((unsigned long long) info[i+j]*100)/total; + printf("%-8u%3llu%% ", info[i+j], pct); + } + printf("\n"); + } + printf("\n"); +} + +static void +print_callstats_list(const char *hdr, const char **names, + unsigned int *callinfo, unsigned int nr) +{ + unsigned long long calltotal; + unsigned int i; + + for (i = 0, calltotal = 0; i < nr; i++) { + calltotal += callinfo[i]; + } + if (!calltotal) + return; + printf("%13s %13s %8llu \n", hdr, "total:", calltotal); + printf("------------- ------------- --------\n"); + for (i = 0; i < nr; i++) { + if (callinfo[i]) + printf("%13s %12s: %8u \n", hdr, names[i], callinfo[i]); + } + printf("\n"); + +} + + +/* returns 0 on success, 1 otherwise */ +static int +parse_raw_statfile(const char *name, struct statinfo *statp) +{ + char buffer[4096], *next; + FILE *fp; + + /* Being unable to read e.g. the nfsd stats file shouldn't + * be a fatal error -- it usually means the module isn't loaded. + */ + if ((fp = fopen(name, "r")) == NULL) { + // fprintf(stderr, "Warning: %s: %m\n", name); + return 1; + } + + while (fgets(buffer, sizeof(buffer), fp) != NULL) { + struct statinfo *ip; + char *sp, *line = buffer; + unsigned int i, cnt; + unsigned int total = 0; + + if ((next = strchr(line, '\n')) != NULL) + *next++ = '\0'; + if (!(sp = strtok(line, " \t"))) + continue; + + ip = get_stat_info(sp, statp); + if (!ip) + continue; + + cnt = ip->nrvals; + + for (i = 0; i < cnt; i++) { + if (!(sp = strtok(NULL, " \t"))) + break; + ip->valptr[i] = (unsigned int) strtoul(sp, NULL, 0); + total += ip->valptr[i]; + } + ip->valptr[cnt - 1] = total; + } + + fclose(fp); + return 0; +} + +/* returns 0 on success, 1 otherwise */ +static int +parse_pretty_statfile(const char *filename, struct statinfo *info) +{ + int numvals, curindex, numconsumed, n, err = 1; + unsigned int sum; + 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++) { +#pragma GCC diagnostic ignored "-Wformat-nonliteral" + n = sscanf(bufp, fmt, &ip->valptr[curindex], + &numconsumed); +#pragma GCC diagnostic warning "-Wformat-nonliteral" + 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 +mounts(const char *name) +{ + char buffer[4096], *next; + FILE *fp; + + /* Being unable to read e.g. the nfsd stats file shouldn't + * be a fatal error -- it usually means the module isn't loaded. + */ + if ((fp = fopen(name, "r")) == NULL) { + fprintf(stderr, "Warning: %s: %s\n", name, strerror(errno)); + return 0; + } + + while (fgets(buffer, sizeof(buffer), fp) != NULL) { + char *line = buffer; + char *device, *mount, *type, *flags; + + if ((next = strchr(line, '\n')) != NULL) + *next = '\0'; + + if (!(device = strtok(line, " \t"))) + continue; + + if (!(mount = strtok(NULL, " \t"))) + continue; + + if (!(type = strtok(NULL, " \t"))) + continue; + + if (strcmp(type, "nfs") && strcmp(type,"nfs4")) { + continue; + } + + if (!(flags = strtok(NULL, " \t"))) + continue; + + printf("%s from %s\n", mount, device); + printf(" Flags:\t%s\n", flags); + printf("\n"); + + continue; + } + + fclose(fp); + return 1; +} + +static void +get_stats(const char *file, struct statinfo *info, int *opt, int other_opt, + int is_srv) +{ + 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, "Error: No %s Stats (%s: %s). \n", + label, file, strerror(errno)); + exit(2); + } + *opt = 0; + } +} + +/* + * 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, int nr) +{ + return (info[0] && info[nr-1] > info[0]); +} +static int +has_rpcstats(const unsigned int *info, int size) +{ + int i, cnt; + + for (i=0, cnt=0; i < size; i++) + cnt += info[i]; + return cnt; +} + +/* + * 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) && old[i].valptr[0]) + 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 %d received; displaying (only) statistics gathered over the last %d minutes, %d seconds:\n\n", sig, minutes, seconds); +} + +static void +update_old_counters(struct statinfo *new, struct statinfo *old) +{ + int z, i; + for (z = 0; old[z].tag; z++) + for (i = 0; i <= old[z].nrvals; i++) + old[z].valptr[i] += new[z].valptr[i]; + +} |