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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /fs/nfsd/stats.c | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | fs/nfsd/stats.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c new file mode 100644 index 000000000..b1bc582b0 --- /dev/null +++ b/fs/nfsd/stats.c @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 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 proc_ops nfsd_proc_ops = { + .proc_open = nfsd_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, +}; + +void +nfsd_stat_init(void) +{ + svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_ops); +} + +void +nfsd_stat_shutdown(void) +{ + svc_proc_unregister(&init_net, "nfsd"); +} |