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SUNRPC: Use per-CPU counters to tally server RPC counts

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- Improves counting accuracy
 - Reduces cross-CPU memory traffic

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2023-01-10 10:31:54 -05:00
parent f5f9d4a314
commit 65ba3d2425
11 changed files with 42 additions and 26 deletions
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15
fs/lockd/svc.c
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@ -721,7 +721,7 @@ out_encode_err:
/*
* Define NLM program and procedures
*/
static unsigned int nlmsvc_version1_count[17];
static DEFINE_PER_CPU_ALIGNED(unsigned long, nlmsvc_version1_count[17]);
static const struct svc_version nlmsvc_version1 = {
.vs_vers = 1,
.vs_nproc = 17,
@ -730,26 +730,31 @@ static const struct svc_version nlmsvc_version1 = {
.vs_dispatch = nlmsvc_dispatch,
.vs_xdrsize = NLMSVC_XDRSIZE,
};
static unsigned int nlmsvc_version3_count[24];
static DEFINE_PER_CPU_ALIGNED(unsigned long,
nlmsvc_version3_count[ARRAY_SIZE(nlmsvc_procedures)]);
static const struct svc_version nlmsvc_version3 = {
.vs_vers = 3,
.vs_nproc = 24,
.vs_nproc = ARRAY_SIZE(nlmsvc_procedures),
.vs_proc = nlmsvc_procedures,
.vs_count = nlmsvc_version3_count,
.vs_dispatch = nlmsvc_dispatch,
.vs_xdrsize = NLMSVC_XDRSIZE,
};
#ifdef CONFIG_LOCKD_V4
static unsigned int nlmsvc_version4_count[24];
static DEFINE_PER_CPU_ALIGNED(unsigned long,
nlmsvc_version4_count[ARRAY_SIZE(nlmsvc_procedures4)]);
static const struct svc_version nlmsvc_version4 = {
.vs_vers = 4,
.vs_nproc = 24,
.vs_nproc = ARRAY_SIZE(nlmsvc_procedures4),
.vs_proc = nlmsvc_procedures4,
.vs_count = nlmsvc_version4_count,
.vs_dispatch = nlmsvc_dispatch,
.vs_xdrsize = NLMSVC_XDRSIZE,
};
#endif
static const struct svc_version *nlmsvc_version[] = {
[1] = &nlmsvc_version1,
[3] = &nlmsvc_version3,