【STM32MP135F-DK】Real-time performance evaluation

fangkaixin

【STM32MP135F-DK】Real-time performance evaluation [Copy link]

<div class='showpostmsg'><i class="pstatus"> This post was last edited by fangkaixin on 2024-1-7 15:27 </i> * @Author: fangkaixin fangkaixin@estun.com * @Date: 2024-01-04 18:10:57 * @LastEditors: fangkaixin fangkaixin@estun.com * @LastEditTime: 2024-01-04 19:11:59 * @FilePath: \undefinedc:\Users\fangkaixin\Desktop\# STM32MP13X 实时性能评估综述.md * @Description: 图片上传还有点问题，周末搞一下 * * Copyright (c) 2024 by fangkaixin, All Rights Reserved. # STM32MP13X Real-time Performance Evaluation Overview As a processor that focuses on real-time performance, the STM32MP13X series processor has demonstrated its powerful real-time processing potential with the support of the X-LINUX-RT expansion package. This article will comprehensively evaluate its real-time performance and explore its advantages and application prospects in real-time applications. ## Hardware Features and Performance The STM32MP13X series processors are well-known for their low-power design and rich peripheral support. This provides a strong hardware foundation for its real-time application field and can meet the needs of various real-time scenarios. ## X-LINUX-RT expansion package functions The X-LINUX-RT expansion package is designed for the real-time characteristics of the STM32MP series processors, which brings the following key features to this series of processors: - **Determinism and low latency:** Extremely low latency requirements are achieved by fixing the processor frequency and using high-resolution timers. - **Power management optimization:** Ensures the best performance and life of the processor, and optimizes frequency settings for different series. ## Real-time application scenarios The real-time performance of STM32MP13X shows great potential in fields with high real-time requirements, such as industrial automation, robotics, and medical equipment. For example, in industrial automation, it can quickly respond to sensor data and process it in real time, thereby improving the efficiency and accuracy of the production line. ## Development tools and support The development environment and tool chain for STM32MP13X are fully supported, equipped with powerful IDE and debugging tools, providing developers with a convenient development experience. Technical support and rich resources also provide great help to developers. ## Real-time performance test### 1. Prepare the test environment (this article only tests the X-LINUX-RT extension package based on the Developer Package) #### 1.1 OpenSTLinux SDK + STM32MP1 Developer Package, we have downloaded and installed it before, see the previous article ["Playing with ecosystem software package, kernel compilation first attempt"](https://bbs.eeworld.com.cn/thread-1267897-1-1.html) #### 1.2 Download X-LINUX-RT meta and clone the following repository to the specified path```bash cd<developer directory="" installation="" package="">/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/ git clone -b mickledore https://github.com/STMicroelectronics/meta-st-x-linux-rt.git ``` #### 1.3 Modify BSP. In order to enable real-time performance features, you need to modify two BSP components: Linux kernel and OP-TEE OS ##### 1.3.1 Modify Linux kernel Apply the patch in the Linux kernel path`<developer directory="" installation="" package="">/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/meta-st-x-linux-rt/recipes-kernel/linux/6.1/6.1.28` ` ``bash for p in `ls -1<developer directory="" installation="" package="">/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/meta-st-x-linux-rt/recipes-kernel/linux/6.1/6.1.28/*.patch`; do patch -p1 < $p; done ``` <ignore_js_op> <img style="cursor:pointer;" id="aimg_770893" aid="770893" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202401/07/152657j0zaut8n0dbf1nnm.png" file="data/attachment/forum/202401/07/152657j0zaut8n0dbf1nnm.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_770893_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>uname.png</strong> <em class="xg1">(38.63 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_770893" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=770893&handlekey=savephoto_770893">save to album</a> </p> <p class="xg1 y">2024-1-7 15:26 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> ##### 1.3.2 Modify the patch applied by OP-TEE OS in the OP-TEE OS directory `<developer directory="" installation="" package="">/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/meta-st-x-linux-rt/recipes-security/optee/optee-os` ``` bash for p in `ls -1<developer directory="" installation="" package="">/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/meta-st-x-linux-rt/recipes-security/optee/optee-os/*.patch`; do patch -p1 < $p; done ``` ### 2. Run the performance test command and use the cyclictest tool to perform real-time performance test of the system. The following is the test command: ```bash cyclictest --mlockall -t -a --priority=99 --interval=200 --distance=0 -l 1000 ``` ## Performance test and comparison In order to achieve real-time performance, a series of tests were conducted before and after using the X-LINUX-RT real-time extension package, as well as before and after increasing the pressure load. The following are the results of the cyclictest test: #### 1. No load, without using the X-LINUX-RT real-time extension package <ignore_js_op> <img style="cursor:pointer;" id="aimg_770886" aid="770886" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202401/07/151916d3yi6mm40rfv4ovr.png" file="data/attachment/forum/202401/07/151916d3yi6mm40rfv4ovr.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_770886_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>无RT.png</strong> <em class="xg1">(15.28 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_770886" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=770886&handlekey=savephoto_770886">save to album</a> </p> <p class="xg1 y">2024-1-7 15:19 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> #### 2. No load, using the X-LINUX-RT real-time extension package <ignore_js_op> <img style="cursor:pointer;" id="aimg_770882" aid="770882" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202401/07/151600cppr1lappwrz4uwz.png" file="data/attachment/forum/202401/07/151600cppr1lappwrz4uwz.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_770882_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>RT-无负载.png</strong> <em class="xg1">(70.49 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_770882" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=770882&handlekey=savephoto_770882">save to album</a> </p> <p class="xg1 y">2024-1-7 15:16 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> #### 3. Adding load, using the X-LINUX-RT real-time extension package <ignore_js_op> <img style="cursor:pointer;" id="aimg_770890" aid="770890" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202401/07/152430t6zbhvk8phv8zvs8.png" file="data/attachment/forum/202401/07/152430t6zbhvk8phv8zvs8.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_770890_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>负载.png</strong> <em class="xg1">(355.52 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_770890" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=770890&handlekey=savephoto_770890">save to album</a> </p> <p class="xg1 y">2024-1-7 15:24 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> <ignore_js_op> <img style="cursor:pointer;" id="aimg_770892" aid="770892" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202401/07/152546fmnlnd088cxn88ii.png" file="data/attachment/forum/202401/07/152546fmnlnd088cxn88ii.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_770892_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>RT-负载.png</strong> <em class="xg1">(78.41 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_770892" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=770892&handlekey=savephoto_770892">save to album</a> </p> <p class="xg1 y">2024-1-7 15:25 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> From the above results, it can be seen that under a single-core processor with a maximum main frequency of 1Ghz, running the rich ecosystem OpenSTlinux system, the optimization effect given by the X-LINUX-RT real-time expansion package is already very obvious. I believe that it will be seen in more real-time scenarios in the future. ## Future Outlook With the continuous development of technology, the STM32MP13X series processors will continue to make progress in the real-time field. Future versions may further optimize real-time performance and continuously improve based on user feedback to meet a wider range of real-time application needs. In summary, for the STM32MP13X series processors, ST customized the development of the X-LINUX-RT expansion package instead of directly using the real-time patch of the kernel community, indicating its emphasis on the real-time application field. With its powerful hardware support and the real-time optimization of the X-LINUX-RT expansion package, it has demonstrated significant advantages in the real-time field. It is not only suitable for existing real-time scenarios, but is also expected to become one of the preferred processors for more real-time applications in the future. I believe that it will get better and better in the future. </developer></developer></developer></developer></developer></div><script> var loginstr = '<div class="locked">To view all the contents of the post, please <a href="/bbs/member.php?mod=logging&action=login" style="color:#e60000" class="loginf">log in</a> or <a href="/bbs/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">register</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

lugl4313820

It is not only suitable for existing real-time scenarios, but is also expected to become one of the preferred processors for more real-time applications in the future. I believe it will get better and better in the future.

Nowadays, the distinction between MCU and MPU is becoming increasingly blurred. They can complement each other.

Jacktang

Is the customized X-LINUX-RT extension package still good?

fangkaixin

Jacktang posted on 2024-1-5 07:27 The customized X-LINUX-RT extension package is still very good

The ST ecosystem is really good, with a full range of expansion packs

fangkaixin

lugl4313820 posted on 2024-1-4 19:58 It is not only suitable for existing real-time scenarios, but is also expected to become one of the preferred processors for more real-time applications in the future. I believe it will get better and better in the future. ...

In fact, MCU and MPU have different focuses. There are many real-time solutions for MPU now, such as using the small core on the MPU to run RTOS to make up for it and communicate between the cores with the large core running Linux. Another example is virtualization, which is also a development direction. ST officials have thought very carefully about this aspect. They have real-time expansion packages and can directly run RTOS.

zhgongzuoshi

Moderator, have you been operating the contents of this chapter on the development board since 1.1?

fangkaixin

zhgongzuoshi posted on 2024-7-10 10:43 Moderator, have you operated the content of this chapter on the development board since 1.1?

Yes