From: Thomas Monjalon <thomas@monjalon.net>
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com, andrew.rybchenko@oktetlabs.ru,
keesang.song@amd.com, anatoly.burakov@intel.com,
david.marchand@redhat.com, bruce.richardson@intel.com,
David Christensen <drc@linux.vnet.ibm.com>,
dmitry.kozliuk@gmail.com, ruifeng.wang@arm.com
Subject: Re: [dpdk-dev] NUMA node/socket
Date: Sun, 04 Jul 2021 03:53:43 +0200 [thread overview]
Message-ID: <12700395.j6fn4b5UDm@thomas> (raw)
In-Reply-To: <2863796.yO5TXMfXnl@thomas>
04/07/2021 03:38, Thomas Monjalon:
> There are some mix between NUMA node and socket IDs in DPDK.
> Examples:
> * rte_eth_dev_socket_id() returns the NUMA node.
> * rte_malloc use sockets to allocate the memory
>
> Is it critical?
There is a function, implemented for Windows only,
which distinguishes clearly node and socket
but it assumes there is only 1 node per socket:
unsigned int
eal_socket_numa_node(unsigned int socket_id)
{
return cpu_map.sockets[socket_id].node_id;
}
Reminder: AMD can be configured to have multiple nodes per socket.
next prev parent reply other threads:[~2021-07-04 1:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-04 1:38 [dpdk-dev] NUMA node/socket Thomas Monjalon
2021-07-04 1:53 ` Thomas Monjalon [this message]
2021-07-04 8:27 ` Andrew Rybchenko
2021-07-04 9:28 ` Thomas Monjalon
2021-07-04 16:18 ` Stephen Hemminger
2021-07-04 16:27 ` Dmitry Kozlyuk
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