From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: "Burakov, Anatoly" <anatoly.burakov@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>,
"Hunt, David" <david.hunt@intel.com>
Cc: "Loftus, Ciara" <ciara.loftus@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3 6/7] power: support monitoring multiple Rx queues
Date: Mon, 28 Jun 2021 13:29:10 +0000 [thread overview]
Message-ID: <DM6PR11MB4491030DED8F1E21880416C89A039@DM6PR11MB4491.namprd11.prod.outlook.com> (raw)
In-Reply-To: <676eab0e1eb6c63acb170893675daa5a39eac29d.1624884053.git.anatoly.burakov@intel.com>
> Use the new multi-monitor intrinsic to allow monitoring multiple ethdev
> Rx queues while entering the energy efficient power state. The multi
> version will be used unconditionally if supported, and the UMWAIT one
> will only be used when multi-monitor is not supported by the hardware.
>
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> ---
> doc/guides/prog_guide/power_man.rst | 9 ++--
> lib/power/rte_power_pmd_mgmt.c | 76 ++++++++++++++++++++++++++++-
> 2 files changed, 80 insertions(+), 5 deletions(-)
>
> diff --git a/doc/guides/prog_guide/power_man.rst b/doc/guides/prog_guide/power_man.rst
> index fac2c19516..3245a5ebed 100644
> --- a/doc/guides/prog_guide/power_man.rst
> +++ b/doc/guides/prog_guide/power_man.rst
> @@ -221,13 +221,16 @@ power saving whenever empty poll count reaches a certain number.
> The "monitor" mode is only supported in the following configurations and scenarios:
>
> * If ``rte_cpu_get_intrinsics_support()`` function indicates that
> + ``rte_power_monitor_multi()`` function is supported by the platform, then
> + monitoring multiple Ethernet Rx queues for traffic will be supported.
> +
> +* If ``rte_cpu_get_intrinsics_support()`` function indicates that only
> ``rte_power_monitor()`` is supported by the platform, then monitoring will be
> limited to a mapping of 1 core 1 queue (thus, each Rx queue will have to be
> monitored from a different lcore).
>
> -* If ``rte_cpu_get_intrinsics_support()`` function indicates that the
> - ``rte_power_monitor()`` function is not supported, then monitor mode will not
> - be supported.
> +* If ``rte_cpu_get_intrinsics_support()`` function indicates that neither of the
> + two monitoring functions are supported, then monitor mode will not be supported.
>
> * Not all Ethernet devices support monitoring, even if the underlying
> platform may support the necessary CPU instructions. Please refer to
> diff --git a/lib/power/rte_power_pmd_mgmt.c b/lib/power/rte_power_pmd_mgmt.c
> index 7762cd39b8..aab2d4f1ee 100644
> --- a/lib/power/rte_power_pmd_mgmt.c
> +++ b/lib/power/rte_power_pmd_mgmt.c
> @@ -155,6 +155,24 @@ queue_list_remove(struct pmd_core_cfg *cfg, const union queue *q)
> return 0;
> }
>
> +static inline int
> +get_monitor_addresses(struct pmd_core_cfg *cfg,
> + struct rte_power_monitor_cond *pmc)
> +{
> + const struct queue_list_entry *qle;
> + size_t i = 0;
> + int ret;
> +
> + TAILQ_FOREACH(qle, &cfg->head, next) {
> + struct rte_power_monitor_cond *cur = &pmc[i];
Looks like you never increment 'i' value inside that function.
Also it probably will be safer to add 'num' parameter to check that
we will never over-run pmc[] boundaries.
> + const union queue *q = &qle->queue;
> + ret = rte_eth_get_monitor_addr(q->portid, q->qid, cur);
> + if (ret < 0)
> + return ret;
> + }
> + return 0;
> +}
> +
> static void
> calc_tsc(void)
> {
> @@ -183,6 +201,48 @@ calc_tsc(void)
> }
> }
>
> +static uint16_t
> +clb_multiwait(uint16_t port_id, uint16_t qidx,
> + struct rte_mbuf **pkts __rte_unused, uint16_t nb_rx,
> + uint16_t max_pkts __rte_unused, void *addr __rte_unused)
> +{
> + const unsigned int lcore = rte_lcore_id();
> + const union queue q = {.portid = port_id, .qid = qidx};
> + const bool empty = nb_rx == 0;
> + struct pmd_core_cfg *q_conf;
> +
> + q_conf = &lcore_cfg[lcore];
> +
> + /* early exit */
> + if (likely(!empty)) {
> + q_conf->empty_poll_stats = 0;
> + } else {
> + /* do we care about this particular queue? */
> + if (!queue_is_power_save(q_conf, &q))
> + return nb_rx;
I still don't understand the need of 'special' power_save queue here...
Why we can't just have a function:
get_number_of_queues_whose_sequential_empty_polls_less_then_threshold(struct pmd_core_cfg *lcore_cfg),
and then just:
/* all queues have at least EMPTYPOLL_MAX sequential empty polls */
if (get_number_of_queues_whose_sequential_empty_polls_less_then_threshold(q_conf) == 0) {
/* go into power-save mode here */
}
> +
> + /*
> + * we can increment unconditionally here because if there were
> + * non-empty polls in other queues assigned to this core, we
> + * dropped the counter to zero anyway.
> + */
> + q_conf->empty_poll_stats++;
> + if (unlikely(q_conf->empty_poll_stats > EMPTYPOLL_MAX)) {
> + struct rte_power_monitor_cond pmc[RTE_MAX_ETHPORTS];
I think you need here:
struct rte_power_monitor_cond pmc[q_conf->n_queues];
> + uint16_t ret;
> +
> + /* gather all monitoring conditions */
> + ret = get_monitor_addresses(q_conf, pmc);
> +
> + if (ret == 0)
> + rte_power_monitor_multi(pmc,
> + q_conf->n_queues, UINT64_MAX);
> + }
> + }
> +
> + return nb_rx;
> +}
> +
> static uint16_t
> clb_umwait(uint16_t port_id, uint16_t qidx, struct rte_mbuf **pkts __rte_unused,
> uint16_t nb_rx, uint16_t max_pkts __rte_unused,
> @@ -348,14 +408,19 @@ static int
> check_monitor(struct pmd_core_cfg *cfg, const union queue *qdata)
> {
> struct rte_power_monitor_cond dummy;
> + bool multimonitor_supported;
>
> /* check if rte_power_monitor is supported */
> if (!global_data.intrinsics_support.power_monitor) {
> RTE_LOG(DEBUG, POWER, "Monitoring intrinsics are not supported\n");
> return -ENOTSUP;
> }
> + /* check if multi-monitor is supported */
> + multimonitor_supported =
> + global_data.intrinsics_support.power_monitor_multi;
>
> - if (cfg->n_queues > 0) {
> + /* if we're adding a new queue, do we support multiple queues? */
> + if (cfg->n_queues > 0 && !multimonitor_supported) {
> RTE_LOG(DEBUG, POWER, "Monitoring multiple queues is not supported\n");
> return -ENOTSUP;
> }
> @@ -371,6 +436,13 @@ check_monitor(struct pmd_core_cfg *cfg, const union queue *qdata)
> return 0;
> }
>
> +static inline rte_rx_callback_fn
> +get_monitor_callback(void)
> +{
> + return global_data.intrinsics_support.power_monitor_multi ?
> + clb_multiwait : clb_umwait;
> +}
> +
> int
> rte_power_ethdev_pmgmt_queue_enable(unsigned int lcore_id, uint16_t port_id,
> uint16_t queue_id, enum rte_power_pmd_mgmt_type mode)
> @@ -434,7 +506,7 @@ rte_power_ethdev_pmgmt_queue_enable(unsigned int lcore_id, uint16_t port_id,
> if (ret < 0)
> goto end;
>
> - clb = clb_umwait;
> + clb = get_monitor_callback();
> break;
> case RTE_POWER_MGMT_TYPE_SCALE:
> /* check if we can add a new queue */
> --
> 2.25.1
next prev parent reply other threads:[~2021-06-28 13:30 UTC|newest]
Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 12:00 [dpdk-dev] [PATCH v1 0/7] Enhancements for PMD power management Anatoly Burakov
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 1/7] power_intrinsics: allow monitor checks inversion Anatoly Burakov
2021-06-21 12:56 ` Ananyev, Konstantin
2021-06-23 9:43 ` Burakov, Anatoly
2021-06-23 9:55 ` Ananyev, Konstantin
2021-06-23 10:00 ` Burakov, Anatoly
2021-06-23 11:00 ` Ananyev, Konstantin
2021-06-23 12:12 ` Burakov, Anatoly
2021-06-23 13:27 ` Ananyev, Konstantin
2021-06-23 14:13 ` Burakov, Anatoly
2021-06-24 9:47 ` Ananyev, Konstantin
2021-06-24 14:34 ` Burakov, Anatoly
2021-06-24 14:57 ` Ananyev, Konstantin
2021-06-24 15:04 ` Burakov, Anatoly
2021-06-24 15:25 ` Ananyev, Konstantin
2021-06-24 15:54 ` Burakov, Anatoly
2021-07-09 15:03 ` David Marchand
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-06-02 12:59 ` Loftus, Ciara
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-06-22 9:13 ` Ananyev, Konstantin
2021-06-23 9:46 ` Burakov, Anatoly
2021-06-23 9:52 ` Ananyev, Konstantin
2021-06-25 11:52 ` Burakov, Anatoly
2021-06-25 14:42 ` Ananyev, Konstantin
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-06-22 9:41 ` Ananyev, Konstantin
2021-06-23 9:36 ` Burakov, Anatoly
2021-06-23 9:49 ` Ananyev, Konstantin
2021-06-23 9:56 ` Burakov, Anatoly
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 6/7] power: support monitoring " Anatoly Burakov
2021-06-01 12:00 ` [dpdk-dev] [PATCH v1 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 0/7] Enhancements for PMD power management Anatoly Burakov
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-06-28 12:19 ` Ananyev, Konstantin
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-06-28 12:37 ` Ananyev, Konstantin
2021-06-28 12:43 ` Burakov, Anatoly
2021-06-28 12:58 ` Ananyev, Konstantin
2021-06-28 13:29 ` Burakov, Anatoly
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-06-28 7:10 ` David Marchand
2021-06-28 9:25 ` Burakov, Anatoly
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 6/7] power: support monitoring " Anatoly Burakov
2021-06-25 14:00 ` [dpdk-dev] [PATCH v2 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 0/7] Enhancements for PMD power management Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 6/7] power: support monitoring " Anatoly Burakov
2021-06-28 13:29 ` Ananyev, Konstantin [this message]
2021-06-28 14:09 ` Burakov, Anatoly
2021-06-29 0:07 ` Ananyev, Konstantin
2021-06-29 11:05 ` Burakov, Anatoly
2021-06-29 11:39 ` Burakov, Anatoly
2021-06-29 12:14 ` Ananyev, Konstantin
2021-06-29 13:23 ` Burakov, Anatoly
2021-06-28 12:41 ` [dpdk-dev] [PATCH v3 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 0/7] Enhancements for PMD power management Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 6/7] power: support monitoring " Anatoly Burakov
2021-06-28 15:54 ` [dpdk-dev] [PATCH v4 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 0/7] Enhancements for PMD power management Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-06-30 9:52 ` David Hunt
2021-07-01 9:01 ` David Hunt
2021-07-05 10:24 ` Burakov, Anatoly
2021-06-30 11:04 ` Ananyev, Konstantin
2021-07-05 10:23 ` Burakov, Anatoly
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 6/7] power: support monitoring " Anatoly Burakov
2021-06-30 10:29 ` Ananyev, Konstantin
2021-07-05 10:08 ` Burakov, Anatoly
2021-06-29 15:48 ` [dpdk-dev] [PATCH v5 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-07-05 15:21 ` [dpdk-dev] [PATCH v6 0/7] Enhancements for PMD power management Anatoly Burakov
2021-07-05 15:21 ` [dpdk-dev] [PATCH v6 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-07-05 15:21 ` [dpdk-dev] [PATCH v6 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-07-05 15:21 ` [dpdk-dev] [PATCH v6 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-08-04 9:52 ` Kinsella, Ray
2021-07-05 15:21 ` [dpdk-dev] [PATCH v6 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-07-07 10:14 ` Ananyev, Konstantin
2021-07-05 15:22 ` [dpdk-dev] [PATCH v6 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-07-06 18:50 ` Ananyev, Konstantin
2021-07-07 10:06 ` Burakov, Anatoly
2021-07-07 10:11 ` Ananyev, Konstantin
2021-07-07 11:54 ` Burakov, Anatoly
2021-07-07 12:51 ` Ananyev, Konstantin
2021-07-07 14:35 ` Burakov, Anatoly
2021-07-07 17:09 ` Ananyev, Konstantin
2021-07-07 10:04 ` David Hunt
2021-07-07 10:28 ` Burakov, Anatoly
2021-07-05 15:22 ` [dpdk-dev] [PATCH v6 6/7] power: support monitoring " Anatoly Burakov
2021-07-07 10:16 ` Ananyev, Konstantin
2021-07-05 15:22 ` [dpdk-dev] [PATCH v6 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 0/7] Enhancements for PMD power management Anatoly Burakov
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-07-07 11:56 ` David Hunt
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-07-07 12:01 ` David Hunt
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-07-07 12:02 ` David Hunt
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-07-07 11:54 ` David Hunt
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 6/7] power: support monitoring " Anatoly Burakov
2021-07-07 12:03 ` David Hunt
2021-07-07 10:48 ` [dpdk-dev] [PATCH v7 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-07-07 12:03 ` David Hunt
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 0/7] Enhancements for PMD power management Anatoly Burakov
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 1/7] power_intrinsics: use callbacks for comparison Anatoly Burakov
2021-07-08 16:56 ` McDaniel, Timothy
2021-07-09 13:46 ` Thomas Monjalon
2021-07-09 14:41 ` Burakov, Anatoly
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 2/7] net/af_xdp: add power monitor support Anatoly Burakov
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 3/7] eal: add power monitor for multiple events Anatoly Burakov
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 4/7] power: remove thread safety from PMD power API's Anatoly Burakov
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 5/7] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-07-09 14:24 ` David Marchand
2021-07-09 14:42 ` Burakov, Anatoly
2021-07-09 14:46 ` David Marchand
2021-07-09 14:53 ` Burakov, Anatoly
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 6/7] power: support monitoring " Anatoly Burakov
2021-07-08 14:13 ` [dpdk-dev] [PATCH v8 7/7] l3fwd-power: support multiqueue in PMD pmgmt modes Anatoly Burakov
2021-07-09 14:50 ` David Marchand
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 0/8] Enhancements for PMD power management Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 1/8] eal: use callbacks for power monitoring comparison Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 2/8] net/af_xdp: add power monitor support Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 3/8] doc: add PMD power management NIC feature Anatoly Burakov
2021-07-09 15:57 ` Burakov, Anatoly
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 4/8] eal: add power monitor for multiple events Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 5/8] power: remove thread safety from PMD power API's Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 6/8] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 7/8] power: support monitoring " Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 15:53 ` [dpdk-dev] [PATCH v9 8/8] examples/l3fwd-power: support multiq in PMD modes Anatoly Burakov
2021-07-09 16:00 ` Anatoly Burakov
2021-07-09 16:00 ` [dpdk-dev] [PATCH v9 0/8] Enhancements for PMD power management Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 " Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 1/8] eal: use callbacks for power monitoring comparison Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 2/8] net/af_xdp: add power monitor support Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 3/8] doc: add PMD power management NIC feature Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 4/8] eal: add power monitor for multiple events Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 5/8] power: remove thread safety from PMD power API's Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 6/8] power: support callbacks for multiple Rx queues Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 7/8] power: support monitoring " Anatoly Burakov
2021-07-09 16:08 ` [dpdk-dev] [PATCH v10 8/8] examples/l3fwd-power: support multiq in PMD modes Anatoly Burakov
2021-07-09 19:24 ` [dpdk-dev] [PATCH v10 0/8] Enhancements for PMD power management David Marchand
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