From: <jerinj@marvell.com>
Cc: <dev@dpdk.org>, <thomas@monjalon.net>, <ruifeng.wang@arm.com>,
Jerin Jacob <jerinj@marvell.com>
Subject: [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation
Date: Sun, 11 Jul 2021 13:28:21 +0530 [thread overview]
Message-ID: <20210711075821.3022587-1-jerinj@marvell.com> (raw)
From: Jerin Jacob <jerinj@marvell.com>
Documented the role of RTE_ARM_EAL_RDTSC_USE_PMU to enable
PMU based rte_rdtsc().
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
doc/guides/prog_guide/profile_app.rst | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/doc/guides/prog_guide/profile_app.rst b/doc/guides/prog_guide/profile_app.rst
index 52f85bb9e0..bd6700ef85 100644
--- a/doc/guides/prog_guide/profile_app.rst
+++ b/doc/guides/prog_guide/profile_app.rst
@@ -94,7 +94,16 @@ an ARMv8 machine.
make
sudo insmod pmu_el0_cycle_counter.ko
-Please refer to :doc:`../linux_gsg/build_dpdk` for details on compiling DPDK with meson.
+Please refer to :doc:`../linux_gsg/build_dpdk` for generic details on compiling DPDK with meson.
+
+In order to enable ``PMU`` based ``rte_rdtsc()``, user needs to configure the
+build with ``-Dc_args='-DRTE_ARM_EAL_RDTSC_USE_PMU'``.
+
+Example:
+
+.. code-block:: console
+
+ meson --cross config/arm/arm64_armv8_linux_gcc -Dc_args='-DRTE_ARM_EAL_RDTSC_USE_PMU' build
.. warning::
--
2.32.0
next reply other threads:[~2021-07-11 7:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-11 7:58 jerinj [this message]
2021-07-12 6:39 ` Ruifeng Wang
2021-07-31 16:42 ` Thomas Monjalon
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