Blame view
net/sunrpc/stats.c
7.11 KB
1da177e4c
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
/* * linux/net/sunrpc/stats.c * * procfs-based user access to generic RPC statistics. The stats files * reside in /proc/net/rpc. * * The read routines assume that the buffer passed in is just big enough. * If you implement an RPC service that has its own stats routine which * appends the generic RPC stats, make sure you don't exceed the PAGE_SIZE * limit. * * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de> */ #include <linux/module.h> |
5a0e3ad6a
|
16 |
#include <linux/slab.h> |
1da177e4c
|
17 18 19 |
#include <linux/init.h> #include <linux/kernel.h> |
1da177e4c
|
20 21 22 23 |
#include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/svcsock.h> |
11c556b3d
|
24 |
#include <linux/sunrpc/metrics.h> |
2446ab607
|
25 |
#include <linux/rcupdate.h> |
1da177e4c
|
26 |
|
4f42d0d53
|
27 |
#include "netns.h" |
1da177e4c
|
28 |
|
4f42d0d53
|
29 |
#define RPCDBG_FACILITY RPCDBG_MISC |
1da177e4c
|
30 31 32 33 34 35 36 |
/* * Get RPC client stats */ static int rpc_proc_show(struct seq_file *seq, void *v) { const struct rpc_stat *statp = seq->private; const struct rpc_program *prog = statp->program; |
ea339d46b
|
37 |
unsigned int i, j; |
1da177e4c
|
38 39 |
seq_printf(seq, |
49e31cbac
|
40 41 |
"net %u %u %u %u ", |
1da177e4c
|
42 43 44 45 46 |
statp->netcnt, statp->netudpcnt, statp->nettcpcnt, statp->nettcpconn); seq_printf(seq, |
49e31cbac
|
47 48 |
"rpc %u %u %u ", |
1da177e4c
|
49 50 51 52 53 54 55 56 |
statp->rpccnt, statp->rpcretrans, statp->rpcauthrefresh); for (i = 0; i < prog->nrvers; i++) { const struct rpc_version *vers = prog->version[i]; if (!vers) continue; |
49e31cbac
|
57 |
seq_printf(seq, "proc%u %u", |
1da177e4c
|
58 59 |
vers->number, vers->nrprocs); for (j = 0; j < vers->nrprocs; j++) |
49e31cbac
|
60 |
seq_printf(seq, " %u", |
1da177e4c
|
61 62 63 64 65 66 67 68 69 |
vers->procs[j].p_count); seq_putc(seq, ' '); } return 0; } static int rpc_proc_open(struct inode *inode, struct file *file) { |
d9dda78ba
|
70 |
return single_open(file, rpc_proc_show, PDE_DATA(inode)); |
1da177e4c
|
71 |
} |
da7071d7e
|
72 |
static const struct file_operations rpc_proc_fops = { |
1da177e4c
|
73 74 75 76 77 78 79 80 81 82 83 84 85 86 |
.owner = THIS_MODULE, .open = rpc_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* * Get RPC server stats */ void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) { const struct svc_program *prog = statp->program; const struct svc_procedure *proc; const struct svc_version *vers; |
ea339d46b
|
87 |
unsigned int i, j; |
1da177e4c
|
88 89 |
seq_printf(seq, |
49e31cbac
|
90 91 |
"net %u %u %u %u ", |
1da177e4c
|
92 93 94 95 96 |
statp->netcnt, statp->netudpcnt, statp->nettcpcnt, statp->nettcpconn); seq_printf(seq, |
49e31cbac
|
97 98 |
"rpc %u %u %u %u %u ", |
1da177e4c
|
99 100 101 102 103 104 105 106 107 |
statp->rpccnt, statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt, statp->rpcbadfmt, statp->rpcbadauth, statp->rpcbadclnt); for (i = 0; i < prog->pg_nvers; i++) { if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc)) continue; |
49e31cbac
|
108 |
seq_printf(seq, "proc%d %u", i, vers->vs_nproc); |
1da177e4c
|
109 |
for (j = 0; j < vers->vs_nproc; j++, proc++) |
49e31cbac
|
110 |
seq_printf(seq, " %u", proc->pc_count); |
1da177e4c
|
111 112 113 114 |
seq_putc(seq, ' '); } } |
24c3767e4
|
115 |
EXPORT_SYMBOL_GPL(svc_seq_show); |
1da177e4c
|
116 |
|
11c556b3d
|
117 118 119 120 121 122 123 |
/** * rpc_alloc_iostats - allocate an rpc_iostats structure * @clnt: RPC program, version, and xprt * */ struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt) { |
edef1297f
|
124 125 126 127 128 129 130 131 132 |
struct rpc_iostats *stats; int i; stats = kcalloc(clnt->cl_maxproc, sizeof(*stats), GFP_KERNEL); if (stats) { for (i = 0; i < clnt->cl_maxproc; i++) spin_lock_init(&stats[i].om_lock); } return stats; |
11c556b3d
|
133 |
} |
e8914c65f
|
134 |
EXPORT_SYMBOL_GPL(rpc_alloc_iostats); |
11c556b3d
|
135 136 137 138 139 140 141 142 143 144 |
/** * rpc_free_iostats - release an rpc_iostats structure * @stats: doomed rpc_iostats structure * */ void rpc_free_iostats(struct rpc_iostats *stats) { kfree(stats); } |
e8914c65f
|
145 |
EXPORT_SYMBOL_GPL(rpc_free_iostats); |
11c556b3d
|
146 147 148 149 |
/** * rpc_count_iostats - tally up per-task stats * @task: completed rpc_task |
0a7021952
|
150 |
* @stats: array of stat structures |
11c556b3d
|
151 |
*/ |
0a7021952
|
152 |
void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats) |
11c556b3d
|
153 154 |
{ struct rpc_rqst *req = task->tk_rqstp; |
11c556b3d
|
155 |
struct rpc_iostats *op_metrics; |
edef1297f
|
156 |
ktime_t delta, now; |
11c556b3d
|
157 |
|
0a7021952
|
158 |
if (!stats || !req) |
11c556b3d
|
159 |
return; |
55ae1aabf
|
160 |
|
edef1297f
|
161 |
now = ktime_get(); |
cc0175c1d
|
162 |
op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx]; |
11c556b3d
|
163 |
|
edef1297f
|
164 |
spin_lock(&op_metrics->om_lock); |
11c556b3d
|
165 166 167 |
op_metrics->om_ops++; op_metrics->om_ntrans += req->rq_ntrans; op_metrics->om_timeouts += task->tk_timeouts; |
d60dbb20a
|
168 |
op_metrics->om_bytes_sent += req->rq_xmit_bytes_sent; |
dd2b63d04
|
169 |
op_metrics->om_bytes_recv += req->rq_reply_bytes_recvd; |
11c556b3d
|
170 |
|
ff8399709
|
171 172 |
delta = ktime_sub(req->rq_xtime, task->tk_start); op_metrics->om_queue = ktime_add(op_metrics->om_queue, delta); |
11c556b3d
|
173 |
|
d60dbb20a
|
174 |
op_metrics->om_rtt = ktime_add(op_metrics->om_rtt, req->rq_rtt); |
11c556b3d
|
175 |
|
edef1297f
|
176 |
delta = ktime_sub(now, task->tk_start); |
ff8399709
|
177 |
op_metrics->om_execute = ktime_add(op_metrics->om_execute, delta); |
edef1297f
|
178 179 |
spin_unlock(&op_metrics->om_lock); |
11c556b3d
|
180 |
} |
0a7021952
|
181 |
EXPORT_SYMBOL_GPL(rpc_count_iostats); |
11c556b3d
|
182 |
|
ec535ce15
|
183 184 |
static void _print_name(struct seq_file *seq, unsigned int op, struct rpc_procinfo *procs) |
cc0175c1d
|
185 186 187 188 189 190 191 192 |
{ if (procs[op].p_name) seq_printf(seq, "\t%12s: ", procs[op].p_name); else if (op == 0) seq_printf(seq, "\t NULL: "); else seq_printf(seq, "\t%12u: ", op); } |
11c556b3d
|
193 194 195 |
void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt) { struct rpc_iostats *stats = clnt->cl_metrics; |
2446ab607
|
196 |
struct rpc_xprt *xprt; |
11c556b3d
|
197 198 199 200 201 202 203 204 |
unsigned int op, maxproc = clnt->cl_maxproc; if (!stats) return; seq_printf(seq, "\tRPC iostats version: %s ", RPC_IOSTATS_VERS); seq_printf(seq, "p/v: %u/%u (%s) ", |
55909f21a
|
205 |
clnt->cl_prog, clnt->cl_vers, clnt->cl_program->name); |
11c556b3d
|
206 |
|
2446ab607
|
207 208 |
rcu_read_lock(); xprt = rcu_dereference(clnt->cl_xprt); |
11c556b3d
|
209 210 |
if (xprt) xprt->ops->print_stats(xprt, seq); |
2446ab607
|
211 |
rcu_read_unlock(); |
11c556b3d
|
212 213 214 215 216 |
seq_printf(seq, "\tper-op statistics "); for (op = 0; op < maxproc; op++) { struct rpc_iostats *metrics = &stats[op]; |
cc0175c1d
|
217 |
_print_name(seq, op, clnt->cl_procinfo); |
11c556b3d
|
218 219 220 221 222 223 224 |
seq_printf(seq, "%lu %lu %lu %Lu %Lu %Lu %Lu %Lu ", metrics->om_ops, metrics->om_ntrans, metrics->om_timeouts, metrics->om_bytes_sent, metrics->om_bytes_recv, |
ff8399709
|
225 226 227 |
ktime_to_ms(metrics->om_queue), ktime_to_ms(metrics->om_rtt), ktime_to_ms(metrics->om_execute)); |
11c556b3d
|
228 229 |
} } |
e8914c65f
|
230 |
EXPORT_SYMBOL_GPL(rpc_print_iostats); |
11c556b3d
|
231 |
|
1da177e4c
|
232 233 234 235 |
/* * Register/unregister RPC proc files */ static inline struct proc_dir_entry * |
ec7652aaf
|
236 237 |
do_register(struct net *net, const char *name, void *data, const struct file_operations *fops) |
1da177e4c
|
238 |
{ |
4f42d0d53
|
239 |
struct sunrpc_net *sn; |
1da177e4c
|
240 |
|
4f42d0d53
|
241 242 |
dprintk("RPC: registering /proc/net/rpc/%s ", name); |
ec7652aaf
|
243 |
sn = net_generic(net, sunrpc_net_id); |
4f42d0d53
|
244 |
return proc_create_data(name, 0, sn->proc_net_rpc, fops, data); |
1da177e4c
|
245 246 247 |
} struct proc_dir_entry * |
ec7652aaf
|
248 |
rpc_proc_register(struct net *net, struct rpc_stat *statp) |
1da177e4c
|
249 |
{ |
ec7652aaf
|
250 |
return do_register(net, statp->program->name, statp, &rpc_proc_fops); |
1da177e4c
|
251 |
} |
e8914c65f
|
252 |
EXPORT_SYMBOL_GPL(rpc_proc_register); |
1da177e4c
|
253 254 |
void |
ec7652aaf
|
255 |
rpc_proc_unregister(struct net *net, const char *name) |
1da177e4c
|
256 |
{ |
4f42d0d53
|
257 |
struct sunrpc_net *sn; |
ec7652aaf
|
258 |
sn = net_generic(net, sunrpc_net_id); |
4f42d0d53
|
259 |
remove_proc_entry(name, sn->proc_net_rpc); |
1da177e4c
|
260 |
} |
e8914c65f
|
261 |
EXPORT_SYMBOL_GPL(rpc_proc_unregister); |
1da177e4c
|
262 263 |
struct proc_dir_entry * |
246590f56
|
264 |
svc_proc_register(struct net *net, struct svc_stat *statp, const struct file_operations *fops) |
1da177e4c
|
265 |
{ |
246590f56
|
266 |
return do_register(net, statp->program->pg_name, statp, fops); |
1da177e4c
|
267 |
} |
24c3767e4
|
268 |
EXPORT_SYMBOL_GPL(svc_proc_register); |
1da177e4c
|
269 270 |
void |
246590f56
|
271 |
svc_proc_unregister(struct net *net, const char *name) |
1da177e4c
|
272 |
{ |
4f42d0d53
|
273 |
struct sunrpc_net *sn; |
246590f56
|
274 |
sn = net_generic(net, sunrpc_net_id); |
4f42d0d53
|
275 |
remove_proc_entry(name, sn->proc_net_rpc); |
1da177e4c
|
276 |
} |
24c3767e4
|
277 |
EXPORT_SYMBOL_GPL(svc_proc_unregister); |
1da177e4c
|
278 |
|
4f42d0d53
|
279 |
int rpc_proc_init(struct net *net) |
1da177e4c
|
280 |
{ |
4f42d0d53
|
281 |
struct sunrpc_net *sn; |
46121cf7d
|
282 283 |
dprintk("RPC: registering /proc/net/rpc "); |
4f42d0d53
|
284 285 286 287 288 289 |
sn = net_generic(net, sunrpc_net_id); sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net); if (sn->proc_net_rpc == NULL) return -ENOMEM; return 0; |
1da177e4c
|
290 |
} |
4f42d0d53
|
291 |
void rpc_proc_exit(struct net *net) |
1da177e4c
|
292 |
{ |
46121cf7d
|
293 294 |
dprintk("RPC: unregistering /proc/net/rpc "); |
4f42d0d53
|
295 |
remove_proc_entry("rpc", net->proc_net); |
1da177e4c
|
296 |
} |