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| author | Chuck Lever <chuck.lever@oracle.com> | 2023-07-10 19:42:20 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2023-08-30 00:45:22 +0300 |
| commit | f208e9508ace01864f2b37a45d07cda0641ff3ea (patch) | |
| tree | f283a9b24be6fbbc8aba690906f5462cc667d76f /net/sunrpc/svc.c | |
| parent | 850bac3ae4a636e9e6bb8de62fe697ac171cb221 (diff) | |
| download | linux-f208e9508ace01864f2b37a45d07cda0641ff3ea.tar.xz | |
SUNRPC: Count ingress RPC messages per svc_pool
svc_xprt_enqueue() can be costly, since it involves selecting and
waking up a process.
More than one enqueue is done per incoming RPC. For example,
svc_data_ready() enqueues, and so does svc_xprt_receive(). Also, if
an RPC message requires more than one call to ->recvfrom() to
receive it fully, each one of those calls does an enqueue.
To get a sense of the average number of transport enqueue operations
needed to process an incoming RPC message, re-use the "packets" pool
stat. Track the number of complete RPC messages processed by each
thread pool.
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/sunrpc/svc.c')
| -rw-r--r-- | net/sunrpc/svc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index ee9d55b2f275..98dff8dfbac8 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -513,6 +513,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools, INIT_LIST_HEAD(&pool->sp_all_threads); spin_lock_init(&pool->sp_lock); + percpu_counter_init(&pool->sp_messages_arrived, 0, GFP_KERNEL); percpu_counter_init(&pool->sp_sockets_queued, 0, GFP_KERNEL); percpu_counter_init(&pool->sp_threads_woken, 0, GFP_KERNEL); } @@ -587,6 +588,7 @@ svc_destroy(struct kref *ref) for (i = 0; i < serv->sv_nrpools; i++) { struct svc_pool *pool = &serv->sv_pools[i]; + percpu_counter_destroy(&pool->sp_messages_arrived); percpu_counter_destroy(&pool->sp_sockets_queued); percpu_counter_destroy(&pool->sp_threads_woken); } |