LegendPei opened a new pull request, #7872:
URL: https://github.com/apache/incubator-seata/pull/7872
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### Ⅰ. Describe what this PR did
根据当前内存值自动计算 JVM 参数（如 Xmx 和 Xms）
Automatically calculate the values for JVM parameters such as Xmx and Xms
based on the current memory value
对于windows只支持环境变量的内存分配，对于容器环境和虚拟机来说，4G的机器将采用70%，4G以上的则采用75%的内存
For Windows, only memory allocation through environment variables is
supported. For container environments and virtual machines, 70% of memory will
be used for machines with 4GB of memory, and 75% for those with more than 4GB
### Ⅱ. Does this pull request fix one issue?
<!-- If that, add "fixes #xxx" below in the next line, for example, fixes
#97. -->
#7836
### Ⅲ. Why don't you add test cases (unit test/integration test)?
对于windows的改动：支持通过环境变量来设置内存，当然也保留了原先的默认值
For changes to Windows: It now supports setting memory through environment
variables, while also retaining the original default values
<img width="2697" height="396" alt="win改后"
src="https://github.com/user-attachments/assets/63920871-65f9-47a1-ad16-54fd1b17dab4";
/>
对于容器环境 For container environments：
1. 2G
<img width="1946" height="572" alt="2g"
src="https://github.com/user-attachments/assets/938aa7a0-820d-4021-b3b7-2ab427f329bb";
/>
2. 8G
<img width="1944" height="572" alt="8g"
src="https://github.com/user-attachments/assets/bd618ab8-fd8b-4772-a870-678b0ba7c1c2";
/>
3. 用户设置环境变量时 When users set environment variables
<img width="1936" height="579" alt="设置"
src="https://github.com/user-attachments/assets/a7c5d98d-50d2-49d8-9b1f-c71fb18f6c98";
/>
4. 最低内存下限（目前设置的是256m） Minimum memory limit (currently set at 256m)
<img width="1932" height="493" alt="下限"
src="https://github.com/user-attachments/assets/00e4015f-2641-49dc-8f59-45935f2ed524";
/>
对于虚拟机 For virtual machines：
1. 当用户设置了环境变量时 When users set environment variables
<img width="1953" height="565" alt="屏幕截图 2025-12-17 204016"
src="https://github.com/user-attachments/assets/c9a71f1f-ed2c-4ae3-b70d-5971bfcbfbbb";
/>
2. 没有设置时，采用自动计算 When not set, automatic calculation is used
<img width="2129" height="617" alt="屏幕截图 2025-12-17 203758"
src="https://github.com/user-attachments/assets/04c16fae-3a28-4ad5-8728-b7f1a5d59854";
/>
### Ⅳ. Describe how to verify it
### Ⅴ. Special notes for reviews
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