From mboxrd@z Thu Jan 1 00:00:00 1970 From: dev-bounces-VfR2kkLFssw@public.gmane.org Subject: (no subject) Date: Mon, 8 Dec 2014 20:36:30 +0100 (CET) Message-ID: <20141208193630.7F7A18049@dpdk.org> Return-path: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" >>From stephen-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org Mon Dec 8 09:46:51 2014 Message-Id: <20141208174651.232055974-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org> User-Agent: quilt/0.63-1 Date: Mon, 08 Dec 2014 09:45:58 -0800 From: Stephen Hemminger To: Thomas Monjalon Cc: dev-VfR2kkLFssw@public.gmane.org, Stephen Hemminger Subject: [PATCH 4/6] rte_sched: keep track of RED drops References: <20141208174554.889069531-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=red-stats.patch Add new statistic to keep track of drops due to RED. Signed-off-by: Stephen Hemminger --- a/lib/librte_sched/rte_sched.c 2014-12-08 09:28:37.810590895 -0800 +++ b/lib/librte_sched/rte_sched.c 2014-12-08 09:28:37.810590895 -0800 @@ -1028,7 +1028,9 @@ rte_sched_port_update_subport_stats(stru } static inline void -rte_sched_port_update_subport_stats_on_drop(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf *pkt) +rte_sched_port_update_subport_stats_on_drop(struct rte_sched_port *port, + uint32_t qindex, + struct rte_mbuf *pkt, uint32_t red) { struct rte_sched_subport *s = port->subport + (qindex / rte_sched_port_queues_per_subport(port)); uint32_t tc_index = (qindex >> 2) & 0x3; @@ -1036,6 +1038,9 @@ rte_sched_port_update_subport_stats_on_d s->stats.n_pkts_tc_dropped[tc_index] += 1; s->stats.n_bytes_tc_dropped[tc_index] += pkt_len; +#ifdef RTE_SCHED_RED + s->stats.n_pkts_red_dropped[tc_index] += red; +#endif } static inline void @@ -1206,12 +1211,20 @@ rte_sched_port_enqueue_qwa(struct rte_sc qlen = q->qw - q->qr; /* Drop the packet (and update drop stats) when queue is full */ - if (unlikely(rte_sched_port_red_drop(port, pkt, qindex, qlen) || (qlen >= qsize))) { + if (unlikely(rte_sched_port_red_drop(port, pkt, qindex, qlen))) { +#ifdef RTE_SCHED_COLLECT_STATS + rte_sched_port_update_subport_stats_on_drop(port, qindex, pkt, 1); + rte_sched_port_update_queue_stats_on_drop(port, qindex, pkt, 1); +#endif rte_pktmbuf_free(pkt); + } + + if (qlen >= qsize) { #ifdef RTE_SCHED_COLLECT_STATS - rte_sched_port_update_subport_stats_on_drop(port, qindex, pkt); - rte_sched_port_update_queue_stats_on_drop(port, qindex, pkt); + rte_sched_port_update_subport_stats_on_drop(port, qindex, pkt, 0); + rte_sched_port_update_queue_stats_on_drop(port, qindex, pkt, 0); #endif + rte_pktmbuf_free(pkt); return 0; } --- a/lib/librte_sched/rte_sched.h 2014-12-08 09:28:37.810590895 -0800 +++ b/lib/librte_sched/rte_sched.h 2014-12-08 09:29:11.402692026 -0800 @@ -140,6 +140,9 @@ struct rte_sched_subport_stats { subport for each traffic class*/ uint32_t n_bytes_tc_dropped[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE]; /**< Number of bytes dropped by the current subport for each traffic class due to subport queues being full or congested */ +#ifdef RTE_SCHED_RED + uint32_t n_pkts_red_dropped[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE]; /**< Number of packets dropped by red */ +#endif }; /** Pipe configuration parameters. The period and credits_per_period parameters are measured @@ -168,7 +171,9 @@ struct rte_sched_queue_stats { /* Packets */ uint32_t n_pkts; /**< Number of packets successfully written to current queue */ uint32_t n_pkts_dropped; /**< Number of packets dropped due to current queue being full or congested */ - +#ifdef RTE_SCHED_RED + uint32_t n_pkts_red_dropped; +#endif /* Bytes */ uint32_t n_bytes; /**< Number of bytes successfully written to current queue */ uint32_t n_bytes_dropped; /**< Number of bytes dropped due to current queue being full or congested */