From: Zhihong Wang <zhihong.wang@intel.com>
To: dev@dpdk.org
Cc: konstantin.ananyev@intel.com, bruce.richardson@intel.com,
pablo.de.lara.guarch@intel.com, thomas.monjalon@6wind.com,
Zhihong Wang <zhihong.wang@intel.com>
Subject: [dpdk-dev] [PATCH v3 4/5] testpmd: handle all rxqs in rss setup
Date: Tue, 14 Jun 2016 19:08:05 -0400 [thread overview]
Message-ID: <1465945686-142094-5-git-send-email-zhihong.wang@intel.com> (raw)
In-Reply-To: <1465945686-142094-1-git-send-email-zhihong.wang@intel.com>
This patch removes constraints in rxq handling when multiqueue is enabled
to handle all the rxqs.
Current testpmd forces a dedicated core for each rxq, some rxqs may be
ignored when core number is less than rxq number, and that causes confusion
and inconvenience.
One example: One Red Hat engineer was doing multiqueue test, there're 2
ports in guest each with 4 queues, and testpmd was used as the forwarding
engine in guest, as usual he used 1 core for forwarding, as a results he
only saw traffic from port 0 queue 0 to port 1 queue 0, then a lot of
emails and quite some time are spent to root cause it, and of course it's
caused by this unreasonable testpmd behavior.
Moreover, even if we understand this behavior, if we want to test the
above case, we still need 8 cores for a single guest to poll all the
rxqs, obviously this is too expensive.
We met quite a lot cases like this, one recent example:
http://openvswitch.org/pipermail/dev/2016-June/072110.html
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
---
app/test-pmd/config.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index ede7c78..4719a08 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1199,19 +1199,13 @@ rss_fwd_config_setup(void)
cur_fwd_config.nb_fwd_ports = nb_fwd_ports;
cur_fwd_config.nb_fwd_streams =
(streamid_t) (nb_q * cur_fwd_config.nb_fwd_ports);
- if (cur_fwd_config.nb_fwd_streams > cur_fwd_config.nb_fwd_lcores)
- cur_fwd_config.nb_fwd_streams =
- (streamid_t)cur_fwd_config.nb_fwd_lcores;
- else
- cur_fwd_config.nb_fwd_lcores =
- (lcoreid_t)cur_fwd_config.nb_fwd_streams;
/* reinitialize forwarding streams */
init_fwd_streams();
setup_fwd_config_of_each_lcore(&cur_fwd_config);
rxp = 0; rxq = 0;
- for (lc_id = 0; lc_id < cur_fwd_config.nb_fwd_lcores; lc_id++) {
+ for (lc_id = 0; lc_id < cur_fwd_config.nb_fwd_streams; lc_id++) {
struct fwd_stream *fs;
fs = fwd_streams[lc_id];
--
2.5.0
next prev parent reply other threads:[~2016-06-15 6:13 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 22:46 [dpdk-dev] [PATCH 0/6] vhost/virtio performance loopback utility Zhihong Wang
2016-05-05 22:46 ` [dpdk-dev] [PATCH 1/6] testpmd: add io_retry forwarding Zhihong Wang
2016-05-25 9:32 ` Thomas Monjalon
2016-05-26 2:40 ` Wang, Zhihong
2016-05-26 6:27 ` Thomas Monjalon
2016-05-26 9:24 ` Wang, Zhihong
2016-05-05 22:46 ` [dpdk-dev] [PATCH 2/6] testpmd: configurable tx_first burst number Zhihong Wang
2016-05-25 9:35 ` Thomas Monjalon
2016-05-26 2:53 ` Wang, Zhihong
2016-05-26 6:31 ` Thomas Monjalon
2016-05-26 9:31 ` Wang, Zhihong
2016-05-05 22:46 ` [dpdk-dev] [PATCH 3/6] testpmd: show throughput in port stats Zhihong Wang
2016-05-05 22:46 ` [dpdk-dev] [PATCH 4/6] testpmd: handle all rxqs in rss setup Zhihong Wang
2016-05-25 9:42 ` Thomas Monjalon
2016-05-26 2:55 ` Wang, Zhihong
2016-06-03 9:22 ` Wang, Zhihong
2016-05-05 22:47 ` [dpdk-dev] [PATCH 5/6] testpmd: show topology at forwarding start Zhihong Wang
2016-05-25 9:45 ` Thomas Monjalon
2016-05-26 2:56 ` Wang, Zhihong
2016-05-05 22:47 ` [dpdk-dev] [PATCH 6/6] testpmd: update documentation Zhihong Wang
2016-05-25 9:48 ` Thomas Monjalon
2016-05-26 2:54 ` Wang, Zhihong
2016-05-20 8:54 ` [dpdk-dev] [PATCH 0/6] vhost/virtio performance loopback utility Wang, Zhihong
2016-05-25 9:27 ` Thomas Monjalon
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 0/5] " Zhihong Wang
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 1/5] testpmd: add retry option Zhihong Wang
2016-06-07 9:28 ` De Lara Guarch, Pablo
2016-06-08 1:29 ` Wang, Zhihong
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 2/5] testpmd: configurable tx_first burst number Zhihong Wang
2016-06-07 9:43 ` De Lara Guarch, Pablo
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 3/5] testpmd: show throughput in port stats Zhihong Wang
2016-06-07 10:02 ` De Lara Guarch, Pablo
2016-06-08 1:31 ` Wang, Zhihong
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 4/5] testpmd: handle all rxqs in rss setup Zhihong Wang
2016-06-07 10:29 ` De Lara Guarch, Pablo
2016-06-08 1:28 ` Wang, Zhihong
2016-06-01 3:27 ` [dpdk-dev] [PATCH v2 5/5] testpmd: show topology at forwarding start Zhihong Wang
2016-06-07 10:56 ` De Lara Guarch, Pablo
2016-06-14 15:13 ` De Lara Guarch, Pablo
2016-06-15 7:05 ` Wang, Zhihong
2016-06-14 23:08 ` [dpdk-dev] [PATCH v3 0/5] vhost/virtio performance loopback utility Zhihong Wang
2016-06-14 23:08 ` [dpdk-dev] [PATCH v3 1/5] testpmd: add retry option Zhihong Wang
2016-06-14 23:08 ` [dpdk-dev] [PATCH v3 2/5] testpmd: configurable tx_first burst number Zhihong Wang
2016-06-14 23:08 ` [dpdk-dev] [PATCH v3 3/5] testpmd: show throughput in port stats Zhihong Wang
2016-06-14 23:08 ` Zhihong Wang [this message]
2016-06-27 14:23 ` [dpdk-dev] [PATCH v3 4/5] testpmd: handle all rxqs in rss setup Nélio Laranjeiro
2016-06-27 22:36 ` De Lara Guarch, Pablo
2016-06-28 8:34 ` Nélio Laranjeiro
2016-06-28 11:10 ` Wang, Zhihong
2016-06-14 23:08 ` [dpdk-dev] [PATCH v3 5/5] testpmd: show topology at forwarding start Zhihong Wang
2016-06-16 11:09 ` De Lara Guarch, Pablo
2016-06-16 13:33 ` Thomas Monjalon
2016-06-15 10:04 ` [dpdk-dev] [PATCH v3 0/5] vhost/virtio performance loopback utility De Lara Guarch, Pablo
2016-06-16 14:36 ` Thomas Monjalon
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