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examples/distributor: give Rx thread a core

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Now that we're printing out a page of stats every second to the console,
we should give the stats it's own core so that we don't interfere with
the performance of the Rx core.

Signed-off-by: David Hunt <david.hunt@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
David Hunt 2017-03-20 10:08:39 +00:00 committed by Thomas Monjalon
parent fce56395a8
commit e80046e5ac
1 changed files with 16 additions and 8 deletions
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24
examples/distributor/main.c
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@ -680,9 +680,10 @@ main(int argc, char *argv[])
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid distributor parameters\n");
if (rte_lcore_count() < 4)
if (rte_lcore_count() < 5)
rte_exit(EXIT_FAILURE, "Error, This application needs at "
"least 4 logical cores to run:\n"
"least 5 logical cores to run:\n"
"1 lcore for stats (can be core 0)\n"
"1 lcore for packet RX\n"
"1 lcore for distribution\n"
"1 lcore for packet TX\n"
@ -724,7 +725,7 @@ main(int argc, char *argv[])
}
d = rte_distributor_create("PKT_DIST", rte_socket_id(),
rte_lcore_count() - 3,
rte_lcore_count() - 4,
RTE_DIST_ALG_BURST);
if (d == NULL)
rte_exit(EXIT_FAILURE, "Cannot create distributor\n");
@ -763,6 +764,18 @@ main(int argc, char *argv[])
/* tx core */
rte_eal_remote_launch((lcore_function_t *)lcore_tx,
dist_tx_ring, lcore_id);
} else if (worker_id == rte_lcore_count() - 2) {
printf("Starting rx on worker_id %d, lcore_id %d\n",
worker_id, lcore_id);
/* rx core */
struct lcore_params *p =
rte_malloc(NULL, sizeof(*p), 0);
if (!p)
rte_panic("malloc failure\n");
*p = (struct lcore_params){worker_id, d, rx_dist_ring,
dist_tx_ring, mbuf_pool};
rte_eal_remote_launch((lcore_function_t *)lcore_rx,
p, lcore_id);
} else {
printf("Starting worker on worker_id %d, lcore_id %d\n",
worker_id, lcore_id);
@ -778,11 +791,6 @@ main(int argc, char *argv[])
}
worker_id++;
}
/* call lcore_main on master core only */
struct lcore_params p = { 0, d, rx_dist_ring, dist_tx_ring, mbuf_pool};
if (lcore_rx(&p) != 0)
return -1;
freq = rte_get_timer_hz();
t = rte_rdtsc() + freq;