From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Muhammad Jawad Hussain <jawad.hussain@emumba.com>,
Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH] doc: fix description of runtime directories
Date: Sun, 16 Jul 2023 11:11:14 -0700 [thread overview]
Message-ID: <20230716181114.63452-1-stephen@networkplumber.org> (raw)
In-Reply-To: <20221103132926.445627-2-juraj.linkes@pantheon.tech>
The documentation was never updated when the DPDK EAL
was modified to follow standard runtime conventions.
Fixes: 1835a22f342f ("support systemd service convention for runtime directory")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
doc/guides/prog_guide/multi_proc_support.rst | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/doc/guides/prog_guide/multi_proc_support.rst b/doc/guides/prog_guide/multi_proc_support.rst
index 815e8bdc4332..cdebfa8d05bb 100644
--- a/doc/guides/prog_guide/multi_proc_support.rst
+++ b/doc/guides/prog_guide/multi_proc_support.rst
@@ -107,15 +107,18 @@ Running Multiple Independent DPDK Applications
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In addition to the above scenarios involving multiple DPDK processes working together,
-it is possible to run multiple DPDK processes side-by-side,
+it is possible to run multiple DPDK processes concurrently,
where those processes are all working independently.
Support for this usage scenario is provided using the ``--file-prefix`` parameter to the EAL.
-By default, the EAL creates hugepage files on each hugetlbfs filesystem using the rtemap_X filename,
+The EAL puts shared runtime files in a directory based on standard conventions.
+If ``$RUNTIME_DIRECTORY'' is defined in the environment it is used (as ``$RUNTIME_DIRECTORY/dpdk'').
+Otherwise, if DPDK is run as root user, it uses /var/run/dpdk
+or if run as non-root user then the /tmp/dpdk (or $XDG_RUNTIME_DIRECTORY/dpdk) is used.
+Hugepage files on each hugetlbfs filesystem using the rtemap_X filename,
where X is in the range 0 to the maximum number of hugepages -1.
-Similarly, it creates shared configuration files, memory mapped in each process, using the /var/run/.rte_config filename,
-when run as root (or $HOME/.rte_config when run as a non-root user;
-if filesystem and device permissions are set up to allow this).
+Similarly, it creates shared configuration files, memory mapped in each process,
+using the .rte_config filename.
The rte part of the filenames of each of the above is configurable using the file-prefix parameter.
In addition to specifying the file-prefix parameter,
--
2.39.2
next prev parent reply other threads:[~2023-07-16 18:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-03 13:29 [PATCH v1 0/2] python gitignore and line length Juraj Linkeš
2022-11-03 13:29 ` [PATCH v1 1/2] git: ignore standard python files Juraj Linkeš
2022-11-04 9:16 ` Juraj Linkeš
2022-11-04 9:26 ` Bruce Richardson
2023-07-16 18:11 ` Stephen Hemminger [this message]
2023-07-20 3:26 ` [PATCH] doc: fix description of runtime directories Thomas Monjalon
2022-11-03 13:29 ` [PATCH v1 2/2] doc: increase python max line to 88 Juraj Linkeš
2022-11-04 9:16 ` Juraj Linkeš
2022-11-04 9:28 ` Bruce Richardson
2022-11-04 16:57 ` Stephen Hemminger
2022-11-10 9:15 ` Juraj Linkeš
2022-11-10 16:27 ` Stephen Hemminger
2023-09-26 12:10 ` [PATCH v2 1/2] doc: increase python max line length to 100 Juraj Linkeš
2023-09-26 12:10 ` [PATCH v2 2/2] dts: reformat to 100 line length Juraj Linkeš
2023-09-26 21:52 ` Jeremy Spewock
2023-09-28 7:27 ` Juraj Linkeš
2023-09-27 8:08 ` Bruce Richardson
2023-09-28 7:33 ` Juraj Linkeš
2023-09-28 8:42 ` Bruce Richardson
2023-09-26 13:00 ` [PATCH v2 1/2] doc: increase python max line length to 100 Bruce Richardson
2023-09-28 12:18 ` [PATCH v3 " Juraj Linkeš
2023-09-28 12:18 ` [PATCH v3 2/2] dts: reformat to 100 line length Juraj Linkeš
2023-09-29 16:53 ` Jeremy Spewock
2023-10-13 7:58 ` [PATCH v4 1/2] doc: increase python max line length to 100 Juraj Linkeš
2023-10-13 7:58 ` [PATCH v4 2/2] dts: reformat to 100 line length Juraj Linkeš
2023-10-16 6:45 ` [PATCH v5 1/2] doc: increase python max line length to 100 Juraj Linkeš
2023-10-16 6:45 ` [PATCH v5 2/2] dts: reformat to 100 line length Juraj Linkeš
2023-11-20 12:36 ` [PATCH v6 1/2] doc: increase python max line length to 100 Juraj Linkeš
2023-11-20 12:36 ` [PATCH v6 2/2] dts: reformat to 100 line length Juraj Linkeš
2023-11-20 16:50 ` Thomas Monjalon
2023-11-21 9:27 ` Juraj Linkeš
2023-10-13 16:09 ` [PATCH v4 1/2] doc: increase python max line length to 100 Stephen Hemminger
2023-10-16 6:44 ` Juraj Linkeš
2023-10-12 12:52 ` [PATCH v3 " Paul Szczepanek
2023-10-13 7:56 ` Juraj Linkeš
2022-11-04 9:15 ` [PATCH v1 0/2] python gitignore and line length Juraj Linkeš
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