session: export session counts to stats segment

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I02aec410eaa7ccb999159b6967414fbaf4e76a3f
This commit is contained in:
Florin Coras
2022-04-25 16:15:02 -07:00
committed by Dave Barach
parent c5d81b91be
commit d82f471a05

View File

@ -21,6 +21,7 @@
#include <vnet/session/application.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/fib/ip4_fib.h>
#include <vlib/stats/stats.h>
session_main_t session_main;
@ -1856,6 +1857,44 @@ session_queue_run_on_main_thread (vlib_main_t * vm)
vlib_node_set_interrupt_pending (vm, session_queue_node.index);
}
static void
session_stats_collector_fn (vlib_stats_collector_data_t *d)
{
u32 i, n_workers, n_wrk_sessions, n_sessions = 0;
session_main_t *smm = &session_main;
session_worker_t *wrk;
counter_t **counters;
counter_t *cb;
n_workers = vec_len (smm->wrk);
vlib_stats_validate (d->entry_index, 0, n_workers - 1);
counters = d->entry->data;
cb = counters[0];
for (i = 0; i < vec_len (smm->wrk); i++)
{
wrk = session_main_get_worker (i);
n_wrk_sessions = pool_elts (wrk->sessions);
cb[i] = n_wrk_sessions;
n_sessions += n_wrk_sessions;
}
vlib_stats_set_gauge (d->private_data, n_sessions);
}
static void
session_stats_collector_init (void)
{
vlib_stats_collector_reg_t reg;
reg.entry_index =
vlib_stats_add_counter_vector ("/sys/session/sessions_per_worker");
reg.private_data = vlib_stats_add_gauge ("/sys/session/sessions_total");
reg.collect_fn = session_stats_collector_fn;
vlib_stats_register_collector_fn (&reg);
vlib_stats_validate (reg.entry_index, 0, vlib_get_n_threads ());
}
static clib_error_t *
session_manager_main_enable (vlib_main_t * vm)
{
@ -1928,6 +1967,7 @@ session_manager_main_enable (vlib_main_t * vm)
session_lookup_init ();
app_namespaces_init ();
transport_init ();
session_stats_collector_init ();
smm->is_initialized = 1;
done: