104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
|
|
* procfs-based user access to knfsd statistics
|
|
*
|
|
* /proc/net/rpc/nfsd
|
|
*
|
|
* Format:
|
|
* rc <hits> <misses> <nocache>
|
|
* Statistsics for the reply cache
|
|
* fh <stale> <total-lookups> <anonlookups> <dir-not-in-dcache> <nondir-not-in-dcache>
|
|
* statistics for filehandle lookup
|
|
* io <bytes-read> <bytes-written>
|
|
* statistics for IO throughput
|
|
* th <threads> <fullcnt> <10%-20%> <20%-30%> ... <90%-100%> <100%>
|
|
* time (seconds) when nfsd thread usage above thresholds
|
|
* and number of times that all threads were in use
|
|
* ra cache-size <10% <20% <30% ... <100% not-found
|
|
* number of times that read-ahead entry was found that deep in
|
|
* the cache.
|
|
* plus generic RPC stats (see net/sunrpc/stats.c)
|
|
*
|
|
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#include <linux/seq_file.h>
|
|
#include <linux/module.h>
|
|
#include <linux/sunrpc/stats.h>
|
|
#include <net/net_namespace.h>
|
|
|
|
#include "nfsd.h"
|
|
|
|
struct nfsd_stats nfsdstats;
|
|
struct svc_stat nfsd_svcstats = {
|
|
.program = &nfsd_program,
|
|
};
|
|
|
|
static int nfsd_proc_show(struct seq_file *seq, void *v)
|
|
{
|
|
int i;
|
|
|
|
seq_printf(seq, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n",
|
|
nfsdstats.rchits,
|
|
nfsdstats.rcmisses,
|
|
nfsdstats.rcnocache,
|
|
nfsdstats.fh_stale,
|
|
nfsdstats.fh_lookup,
|
|
nfsdstats.fh_anon,
|
|
nfsdstats.fh_nocache_dir,
|
|
nfsdstats.fh_nocache_nondir,
|
|
nfsdstats.io_read,
|
|
nfsdstats.io_write);
|
|
/* thread usage: */
|
|
seq_printf(seq, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt);
|
|
for (i=0; i<10; i++) {
|
|
unsigned int jifs = nfsdstats.th_usage[i];
|
|
unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ;
|
|
seq_printf(seq, " %u.%03u", sec, msec);
|
|
}
|
|
|
|
/* newline and ra-cache */
|
|
seq_printf(seq, "\nra %u", nfsdstats.ra_size);
|
|
for (i=0; i<11; i++)
|
|
seq_printf(seq, " %u", nfsdstats.ra_depth[i]);
|
|
seq_putc(seq, '\n');
|
|
|
|
/* show my rpc info */
|
|
svc_seq_show(seq, &nfsd_svcstats);
|
|
|
|
#ifdef CONFIG_NFSD_V4
|
|
/* Show count for individual nfsv4 operations */
|
|
/* Writing operation numbers 0 1 2 also for maintaining uniformity */
|
|
seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
|
|
for (i = 0; i <= LAST_NFS4_OP; i++)
|
|
seq_printf(seq, " %u", nfsdstats.nfs4_opcount[i]);
|
|
|
|
seq_putc(seq, '\n');
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nfsd_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, nfsd_proc_show, NULL);
|
|
}
|
|
|
|
static const struct file_operations nfsd_proc_fops = {
|
|
.open = nfsd_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
void
|
|
nfsd_stat_init(void)
|
|
{
|
|
svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_fops);
|
|
}
|
|
|
|
void
|
|
nfsd_stat_shutdown(void)
|
|
{
|
|
svc_proc_unregister(&init_net, "nfsd");
|
|
}
|