From: Bruce Richardson <bruce.richardson@intel.com>
To: "Juraj Linkeš" <juraj.linkes@pantheon.tech>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] DPDK 20.08 meson build testpmd not detecting all NUMA nodes
Date: Fri, 28 Aug 2020 11:20:02 +0100 [thread overview]
Message-ID: <20200828102002.GB575@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <ebcdedcfb6b745a9ae29872aee335bb9@pantheon.tech>
On Fri, Aug 28, 2020 at 09:26:12AM +0000, Juraj Linkeš wrote:
> Hello DPDK devs,
>
> I've meson built (using just meson build && ninja -C build) dpdk-20.08 (downloaded from the site) on a Taishan arm server and dpdk-testpmd is incorrectly detecting NUMA nodes on the system:
> EAL: Detected 16 lcore(s)
> EAL: Detected 1 NUMA nodes
>
> lscpu report 4 NUMA nodes:
> NUMA node0 CPU(s): 0-15
> NUMA node1 CPU(s): 16-31
> NUMA node2 CPU(s): 32-47
> NUMA node3 CPU(s): 48-63
>
> When built with make T=arm64-armv8a-linuxapp-gcc testpmd is detecting NUMA nodes correctly:
> EAL: Detected 64 lcore(s)
> EAL: Detected 4 NUMA nodes
>
> Any idea what's the difference between the builds? I've looked at NUMA config options but those seem ok to me:
> grep NUMA arm64-armv8a-linuxapp-gcc/.config build/rte_build_config.h
> arm64-armv8a-linuxapp-gcc/.config:CONFIG_RTE_MAX_NUMA_NODES=8
> arm64-armv8a-linuxapp-gcc/.config:# a "type" is a combination of page size and NUMA node. total number of memseg
> arm64-armv8a-linuxapp-gcc/.config:CONFIG_RTE_EAL_NUMA_AWARE_HUGEPAGES=y
> arm64-armv8a-linuxapp-gcc/.config:CONFIG_RTE_LIBRTE_VHOST_NUMA=y
> build/rte_build_config.h:#define RTE_EAL_NUMA_AWARE_HUGEPAGES 1
> build/rte_build_config.h:#define RTE_HAS_LIBNUMA 1
> build/rte_build_config.h:#define RTE_LIBRTE_VHOST_NUMA 1
> build/rte_build_config.h:#define RTE_MAX_NUMA_NODES 4
>
> Any pointers are welcome.
>
What is the max lcores value in your build config? Do you know what
settings are being chosen for your platform in config/arm/meson.build?
Regards,
/Bruce
next prev parent reply other threads:[~2020-08-28 10:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 9:26 Juraj Linkeš
2020-08-28 10:20 ` Bruce Richardson [this message]
2020-08-28 10:29 ` Bruce Richardson
2020-08-28 11:11 ` Juraj Linkeš
2020-08-28 13:10 ` Bruce Richardson
2020-08-28 15:15 ` Ruifeng Wang
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