I developed a firmware that has an embedded webserver. I use ESP32S3 MCU For those who are curious about the product being mentioned: https://enervision.ind.br/produto/mqtt-view/ However, since my system is complex, and I have several tasks running at the same time. To prevent the webserver from …

This year I was excited to get this project up and running, and it turned out great. I decided to share the result with you all. [image] Change the task priority on the web server Kernel A year ago I posted asking if I could change the priority of a task at ru…

If your web server CRASHES, that is a serious problem that you can not address with priority fiddling. Find the root cause for the crash and fix it. What you possibly really mean is that the server gets starved and therefore becomes unresponsive. Yes, that can happen, and there is not a whole lot …

First: Thank you for taking the time to help me. I am very grateful for your attention. There may be an error in the translation from my “Portuguese” to English (I use Google Translate). When I say that my system “crashes” it is not exactly a “crash”. It becomes slow, takes a long time to res…

If your web server is idle most of the time, it can not starve the rest of your system while no client is attached (unless you coded your server hapharzedly), so you will not benefit from raising the priority once a client is attached. If your problem is that the server starves the rest of the syst…

In this case, you don’t see any sense in applying this priority change. Considering that even though the webserver has high priority, it is not being used. ? Is that your opinion? I thought that the fact that it has high priority leaves the rest of the system without resources.

No, the web server task is dormant until a client attaches, ie the web server is suspended on a call to attach() - at least if you follow the “standard” coding scheme. In that state, its priority is irrelevant as it is suspended.

I didn’t know, is this a feature of ESP-IDF 5? Or something from free-rtos?

Neither nor, it is the way TCP servers are generally coded. If your web server was provided by prefabbed code in your IDE, you may want to look at the generated code to see how it behaves; maybe your tool vendor does things differently to make the web server task fit better into their framework. But…

What security recommendations do you suggest to make the embedded web server more secure? And to prevent it from being an easy target for DDoS attacks? Change default http port 80?

first of all make sure that the user authentication is sufficiently strong to prevent malicious software to get into your web server, aside from the usual recommendations. However that is not going to help if an attacker bombards your target with SYN requests on your port. Other than that, there are…

Thank you, I will implement security. At the moment the product has no security. It doesn’t even have a login screen.

Change the task priority temporary

Kernel

allacmc (Allan Caldas) June 23, 2026, 3:06am 16

This year I was excited to get this project up and running, and it turned out great. I decided to share the result with you all.

Topic		Replies	Views
Change the task priority on the web server Kernel	3	132	June 30, 2026
Setting a task priority to fixed or changing through code Kernel	2	1087	November 3, 2021
Increase a priority of task in ISR Kernel	13	1797	September 18, 2021
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Change the task priority temporary

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