* [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation
@ 2021-07-11 7:58 jerinj
2021-07-12 6:39 ` Ruifeng Wang
0 siblings, 1 reply; 3+ messages in thread
From: jerinj @ 2021-07-11 7:58 UTC (permalink / raw)
Cc: dev, thomas, ruifeng.wang, Jerin Jacob
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
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation
2021-07-11 7:58 [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation jerinj
@ 2021-07-12 6:39 ` Ruifeng Wang
2021-07-31 16:42 ` Thomas Monjalon
0 siblings, 1 reply; 3+ messages in thread
From: Ruifeng Wang @ 2021-07-12 6:39 UTC (permalink / raw)
To: jerinj; +Cc: dev, thomas, jerinj, nd
> -----Original Message-----
> From: jerinj@marvell.com <jerinj@marvell.com>
> Sent: Sunday, July 11, 2021 3:58 PM
> Cc: dev@dpdk.org; thomas@monjalon.net; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com
> Subject: [PATCH] doc: enhance arm64 profiling documentation
>
> 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
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation
2021-07-12 6:39 ` Ruifeng Wang
@ 2021-07-31 16:42 ` Thomas Monjalon
0 siblings, 0 replies; 3+ messages in thread
From: Thomas Monjalon @ 2021-07-31 16:42 UTC (permalink / raw)
To: jerinj; +Cc: dev, nd, Ruifeng Wang
> > 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>
> Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-07-11 7:58 [dpdk-dev] [PATCH] doc: enhance arm64 profiling documentation jerinj
2021-07-12 6:39 ` Ruifeng Wang
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