From: Robert Hoo <robert.hu@linux•intel.com>
To: brouer@redhat•com, davem@davemloft•net, tariqt@mellanox•com,
kyle.leet@gmail•com
Cc: netdev@vger•kernel.org, robert.hu@intel•com
Subject: [pktgen script v2 0/2] Add a pktgen sample script of NUMA awareness
Date: Sun, 17 Sep 2017 20:36:36 +0800 [thread overview]
Message-ID: <1505651798-106642-1-git-send-email-robert.hu@linux.intel.com> (raw)
From: Robert Hoo <robert.hu@intel•com>
It's hard to benchmark 40G+ network bandwidth using ordinary
tools like iperf, netperf (see reference 1).
Pktgen, packet generator from Kernel sapce, shall be a candidate.
I derived this NUMA awared irq affinity sample script from
multi-queue sample02, successfully benchmarked 40G link. I think this can
also be useful for 100G reference, though I haven't got device to test yet.
This script simply does:
Detect $DEV's NUMA node belonging.
Bind each thread (processor of NUMA locality) with each $DEV queue's
irq affinity, 1:1 mapping.
How many '-t' threads input determines how many queues will be
utilized.
If '-f' designates first cpu id, then offset in the NUMA node's cpu
list.
Tested with Intel XL710 NIC with Cisco 3172 switch.
Referrences:
https://people.netfilter.org/hawk/presentations/LCA2015/net_stack_challenges_100G_LCA2015.pdf
http://www.intel.cn/content/dam/www/public/us/en/documents/reference-guides/xl710-x710-performance-tuning-linux-guide.pdf
Change log
v2:
Rebased to https://github.com/netoptimizer/network-testing/tree/master/pktgen
Move helper functions to functions.sh
More concise shell grammar usage
Take '-f' parameter into consideration. If the first CPU is designaed,
offset in the NUMA-aware CPU list.
Use err(), info() helper functions for such outputs.
Robert Hoo (2):
Add some helper functions
Add pktgen script: pktgen_sample06_numa_awared_queue_irq_affinity.sh
pktgen/functions.sh | 44 ++++++++++
...tgen_sample06_numa_awared_queue_irq_affinity.sh | 97 ++++++++++++++++++++++
2 files changed, 141 insertions(+)
create mode 100755 pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh
--
1.8.3.1
next reply other threads:[~2017-09-17 12:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-17 12:36 Robert Hoo [this message]
2017-09-17 12:36 ` [pktgen script v2 1/2] Add some helper functions Robert Hoo
2017-09-17 12:36 ` [pktgen script v2 2/2] Add pktgen script: pktgen_sample06_numa_awared_queue_irq_affinity.sh Robert Hoo
2017-09-18 9:06 ` [pktgen script v2 0/2] Add a pktgen sample script of NUMA awareness Jesper Dangaard Brouer
2017-09-22 14:06 ` Jesper Dangaard Brouer
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