From: Harshula Jayasuriya <harshula@redhat.com>
To: linux-nfs@vger.kernel.org
Cc: Steve Dickson <steved@redhat.com>
Subject: [PATCH] nfs-utils: nfsstat: has_stats() does not function correctly for NFSv4 client stats
Date: Wed, 10 Nov 2010 05:50:03 +1100 [thread overview]
Message-ID: <1289328603.9490.18.camel@serendib> (raw)
Hi,
The NFSv4 client procs/ops in "struct rpc_procinfo nfs4_procedures" is
used to generate the NFS client stats interface:
------------------------------------------------------------
# cat /proc/net/rpc/nfs
net 0 0 0 0
rpc 15 0 0
proc2 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
proc3 22 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0
proc4 42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 0 0 0
------------------------------------------------------------
Note, for proc4, the number 42. That is the number of stats that follow
on the same line. Currently nfsstat's has_stats() relies on this number
to be equal to CLTPROC4_SZ. Unfortunately this is not the case. I have
changed has_stats() not to rely on these two values being equal. This
should also allow nfsstat to work with different kernel versions that
expose a different number of NFS client ops.
* Fix has_stats()
* Stop print_clnt_list() printing server stats!
* Describe the option -3 and -4 completely in the nfsstat manpage.
Signed-off-by: Harshula Jayasuriya <harshula@redhat.com>
---
utils/nfsstat/nfsstat.c | 124 ++++++++++++++++++++-------------------------
utils/nfsstat/nfsstat.man | 6 ++-
2 files changed, 59 insertions(+), 71 deletions(-)
diff --git a/utils/nfsstat/nfsstat.c b/utils/nfsstat/nfsstat.c
index bacef8e..f31bb81 100644
--- a/utils/nfsstat/nfsstat.c
+++ b/utils/nfsstat/nfsstat.c
@@ -46,7 +46,7 @@ static unsigned int cltproc3info[CLTPROC3_SZ+2],
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] == 48) */
+ 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
@@ -221,8 +221,8 @@ DECLARE_CLT(cltinfo);
DECLARE_CLT(cltinfo, _old);
static void print_all_stats(int, int, int);
-static void print_server_stats(int, int);
-static void print_client_stats(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);
@@ -239,7 +239,7 @@ static int mounts(const char *);
static void get_stats(const char *, struct statinfo *, int *, int,
int);
-static int has_stats(const unsigned 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);
@@ -468,7 +468,7 @@ main(int argc, char **argv)
pause();
}
- if (opt_since || opt_sleep) {
+ 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);
@@ -516,16 +516,16 @@ main(int argc, char **argv)
static void
print_all_stats (int opt_srv, int opt_clt, int opt_prt)
{
- print_server_stats(opt_srv, opt_prt);
- print_client_stats(opt_clt, 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_srv, int opt_prt)
+print_server_stats(int opt_prt)
{
- if (!opt_srv)
- return;
-
if (opt_prt & PRNT_NET) {
if (opt_sleep && !has_rpcstats(srvnetinfo, 4)) {
} else {
@@ -582,31 +582,29 @@ print_server_stats(int opt_srv, int opt_prt)
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_stats(srvproc2info))) {
- if (opt_sleep && !has_stats(srvproc2info)) {
- ;
- } else {
+ ((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_stats(srvproc3info))) {
- if (opt_sleep && !has_stats(srvproc3info)) {
- ;
- } else {
+ ((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_stats(srvproc4info))) {
- if (opt_sleep && !has_stats(srvproc4info)) {
- ;
- } else {
+ ((opt_prt & PRNT_AUTO) && has_v4_stats)) {
+ if (!opt_sleep || has_v4_stats) {
print_callstats( LABEL_srvproc4,
nfssrvproc4name, srvproc4info + 1,
sizeof(nfssrvproc4name)/sizeof(char *));
@@ -618,11 +616,8 @@ print_server_stats(int opt_srv, int opt_prt)
}
}
static void
-print_client_stats(int opt_clt, int opt_prt)
+print_client_stats(int opt_prt)
{
- if (!opt_clt)
- return;
-
if (opt_prt & PRNT_NET) {
if (opt_sleep && !has_rpcstats(cltnetinfo, 4)) {
;
@@ -644,31 +639,28 @@ print_client_stats(int opt_clt, 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_stats(cltproc2info))) {
- if (opt_sleep && !has_stats(cltproc2info)) {
- ;
- } else {
+ ((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_stats(cltproc3info))) {
- if (opt_sleep && !has_stats(cltproc3info)) {
- ;
- } else {
+ ((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_stats(cltproc4info))) {
- if (opt_sleep && !has_stats(cltproc4info)) {
- ;
- } else {
+ ((opt_prt & PRNT_AUTO) && has_v4_stats)) {
+ if (!opt_sleep || has_v4_stats) {
print_callstats(LABEL_cltproc4,
nfscltproc4name, cltproc4info + 1,
sizeof(nfscltproc4name)/sizeof(char *));
@@ -681,34 +673,28 @@ 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_stats(cltproc2info))) {
- if (opt_sleep && !has_stats(cltproc2info)) {
- ;
- } else {
+ ((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_stats(cltproc3info))) {
- if (opt_sleep && !has_stats(cltproc3info)) {
- ;
- } else {
+ ((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_stats(cltproc4info))) {
- if (opt_sleep && !has_stats(cltproc4info)) {
- ;
- } else {
- print_callstats_list("nfs v4 ops",
- nfssrvproc4opname, srvproc4opsinfo + 1,
- sizeof(nfssrvproc4opname)/sizeof(char *));
+ ((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 *));
@@ -720,32 +706,32 @@ 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_stats(srvproc2info))) {
- if (opt_sleep && !has_stats(srvproc2info)) {
- ;
- } else {
+ ((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_stats(srvproc3info))) {
- if (opt_sleep && !has_stats(srvproc3info)) {
- ;
- } else {
+ ((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_stats(srvproc4opsinfo))) {
- if (opt_sleep && !has_stats(srvproc4info)) {
- ;
- } else {
- print_callstats_list("nfs v4 ops",
+ ((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 *));
}
@@ -1054,9 +1040,9 @@ out:
* there are stats if the sum's greater than the entry-count.
*/
static int
-has_stats(const unsigned int *info)
+has_stats(const unsigned int *info, int nr)
{
- return (info[0] && info[info[0] + 1] > info[0]);
+ return (info[0] && info[nr-1] > info[0]);
}
static int
has_rpcstats(const unsigned int *info, int size)
diff --git a/utils/nfsstat/nfsstat.man b/utils/nfsstat/nfsstat.man
index 52215a9..cd573b0 100644
--- a/utils/nfsstat/nfsstat.man
+++ b/utils/nfsstat/nfsstat.man
@@ -30,10 +30,12 @@ Print only NFS v2 statistics. The default is to only print information
about the versions of \fBNFS\fR that have non-zero counts.
.TP
.B \-3
-Print only NFS v3 statistics.
+Print only NFS v3 statistics. The default is to only print information
+about the versions of \fBNFS\fR that have non-zero counts.
.TP
.B \-4
-Print only NFS v4 statistics.
+Print only NFS v4 statistics. The default is to only print information
+about the versions of \fBNFS\fR that have non-zero counts.
.TP
.B \-m, \-\-mounts
Print information about each of the mounted \fBNFS\fR file systems.
--
1.7.3.2
next reply other threads:[~2010-11-09 18:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 18:50 Harshula Jayasuriya [this message]
2010-11-09 19:29 ` [PATCH] nfs-utils: nfsstat: has_stats() does not function correctly for NFSv4 client stats Chuck Lever
2010-11-10 4:26 ` Harshula Jayasuriya
2010-11-10 15:08 ` Steve Dickson
2010-11-10 16:27 ` Jim Rees
2010-11-10 18:03 ` Steve Dickson
2010-11-22 17:16 ` Steve Dickson
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