12.0 perf update

source/devices/AM62LX/linux/RT_Linux_Performance_Guide.rst

@@ -1,8 +1,10 @@
-=======================================
- RT-linux 11.02.08.02 Performance Guide
-=======================================
+###################################
+RT-linux 12.00.00 Performance Guide
+###################################
 
-.. rubric::  **Read This First**
+***************
+Read This First
+***************
 
 **All performance numbers provided in this document are gathered using
 following Evaluation Modules unless otherwise specified.**
@@ -15,70 +17,23 @@ following Evaluation Modules unless otherwise specified.**
 
 Table:  Evaluation Modules
 
-|
-
-.. rubric::  About This Manual
+*****************
+About This Manual
+*****************
 
 This document provides performance data for each of the device drivers
 which are part of the Process SDK Linux package. This document should be
 used in conjunction with release notes and user guides provided with the
 Process SDK Linux package for information on specific issues present
 with drivers included in a particular release.
 
-.. rubric::  If You Need Assistance
-
 For further information or to report any problems, contact
 https://e2e.ti.com/ or https://support.ti.com/
 
 |
 
+*****************
 System Benchmarks
------------------
-
-Stress-ng and Cyclic Test
-
-.. _RT-linux-performance:
-
-stress-ng (next-generation) will stress test a embedded platform in various selectable ways.
-It was designed to exercise various physical subsystems as well as the various
-operating system kernel interfaces. stress-ng can also measure test throughput rates;
-this can be useful to observe performance changes across different operating system or types of hardware.
-
-Cyclictest is most commonly used for benchmarking RT systems.
-It is one of the most frequently used tools for evaluating the relative performance of real-time systems.
-Some performance tests which use Cyclictest are System benchmarking, Latency debugging with tracing and
-approximating application performance.
-
-Test commands used for running stress-ng and cyclictest together
-
-.. code:: console
+*****************
 
-   stress-ng --cpu-method=all -c 4 &
-   cyclictest -m -Sp80 -D6h -h400 -i200 -M -q
-
-The following summarizes the latencies observed using the yocto based
-default SDK image:
-
-.. note::
-
-   Using the OP-TEE TRNG driver can impact this benchmark's performance due to
-   frequent context switching between Normal World (Linux) and Secure World (OP-TEE),
-   that occurs when the kernel's hardware random number generator interface
-   (hwrng) requests entropy from the secure TRNG to replenish the Linux entropy
-   pool.
-
-   The Linux TRNG driver can mitigate these latency spikes. This involves
-   enabling the Pseudo RNG driver in OP-TEE as documented in the Foundational
-   Components section: :ref:`building-optee-with-prng`, and enabling the RNG
-   node in the Linux kernel device tree. This way the HW TRNG is accessed from
-   the kernel itself.
-
-
-.. csv-table::
-   :header: "Latencies","CPU 0","CPU 1"
-
-   "Minimum (usec)","5","5"
-   "Average (usec)","8","7"
-   "Maximum (usec)","62","47"
-
-.. image:: img/rt-cpu-method-all-latency-histogram.png
+|

source/devices/AM62PX/linux/RT_Linux_Performance_Guide.rst

@@ -1,9 +1,10 @@
-=======================================
- RT-linux 11.02.08.02 Performance Guide
-=======================================
+###################################
+RT-linux 12.00.00 Performance Guide
+###################################
 
-.. rubric::  **Read This First**
-   :name: read-this-first-kernel-perf-guide
+***************
+Read This First
+***************
 
 **All performance numbers provided in this document are gathered using
 following Evaluation Modules unless otherwise specified.**
@@ -16,69 +17,23 @@ following Evaluation Modules unless otherwise specified.**
 
 Table:  Evaluation Modules
 
-.. rubric::  About This Manual
-   :name: about-this-manual-rt-kernel-perf-guide
+*****************
+About This Manual
+*****************
 
 This document provides performance data for each of the device drivers
 which are part of the Processor SDK Linux package. This document should be
 used in conjunction with release notes and user guides provided with the
 Processor SDK Linux package for information on specific issues present
 with drivers included in a particular release.
 
-.. rubric::  If You Need Assistance
-   :name: if-you-need-assistance-rt-kernel-perf-guide
-
 For further information or to report any problems, contact
 https://e2e.ti.com/ or https://support.ti.com/
 
 |
 
+*****************
 System Benchmarks
------------------
-
-Stress-ng and Cyclic Test
-
-.. _RT-linux-performance:
-
-stress-ng (next-generation) will stress test a embedded platform in various selectable ways.
-It was designed to exercise various physical subsystems as well as the various
-operating system kernel interfaces. stress-ng can also measure test throughput rates;
-this can be useful to observe performance changes across different operating system or types of hardware.
-
-Cyclictest is most commonly used for benchmarking RT systems.
-It is one of the most frequently used tools for evaluating the relative performance of real-time systems.
-Some performance tests which use Cyclictest are System benchmarking, Latency debugging with tracing and
-approximating application performance.
-
-Test commands used for running stress-ng and cyclictest together
-
-.. code:: console
-
-   stress-ng --cpu-method=all -c 4 &
-   cyclictest -m -Sp80 -D6h -h400 -i200 -M -q
+*****************
 
-The following summarizes the latencies observed using the yocto based
-default SDK image
-
-.. note::
-
-   Using the OP-TEE TRNG driver can impact this benchmark's performance due to
-   frequent context switching between Normal World (Linux) and Secure World (OP-TEE),
-   that occurs when the kernel's hardware random number generator interface
-   (hwrng) requests entropy from the secure TRNG to replenish the Linux entropy
-   pool.
-
-   The Linux TRNG driver can mitigate these latency spikes. This involves
-   enabling the Pseudo RNG driver in OP-TEE as documented in the Foundational
-   Components section: :ref:`building-optee-with-prng`, and enabling the RNG
-   node in the Linux kernel device tree. This way the HW TRNG is accessed from
-   the kernel itself.
-
-.. csv-table::
-   :header: "Latencies","CPU 0","CPU 1","CPU 2","CPU 3"
-
-   "Minimum (usec)","5","5","5","5"
-   "Average (usec)","6","6","6","6"
-   "Maximum (usec)","33","36","34","40"
-
-.. image:: img/rt-cpu-method-all-latency-histogram.png
+|