Profiling with VTune
~~~~~~~~~~~~~~~~~~~~
-To allow VTune attaching to the DPDK application, reconfigure and recompile
-the DPDK with ``CONFIG_RTE_ETHDEV_RXTX_CALLBACKS`` and
-``CONFIG_RTE_ETHDEV_PROFILE_WITH_VTUNE`` enabled.
+To allow VTune attaching to the DPDK application, reconfigure a DPDK build
+folder by passing ``-Dc_args=-DRTE_ETHDEV_PROFILE_WITH_VTUNE`` meson option
+and recompile the DPDK:
+
+.. code-block:: console
+
+ meson build
+ meson configure build -Dc_args=-DRTE_ETHDEV_PROFILE_WITH_VTUNE
+ ninja -C build
Profiling on ARM64
mode (kernel space).
By default the ``rte_rdtsc()`` implementation uses a portable ``cntvct_el0``
-scheme. Application can choose the PMU based implementation with
-``CONFIG_RTE_ARM_EAL_RDTSC_USE_PMU``.
+scheme.
The example below shows the steps to configure the PMU based cycle counter on
an ARMv8 machine.
cd armv8_pmu_cycle_counter_el0
make
sudo insmod pmu_el0_cycle_counter.ko
- cd $DPDK_DIR
- make config T=arm64-armv8a-linux-gcc
- echo "CONFIG_RTE_ARM_EAL_RDTSC_USE_PMU=y" >> build/.config
- make
+
+Please refer to :doc:`../linux_gsg/build_dpdk` for details on compiling DPDK with meson.
.. warning::