关于优化Policy Center（自主管理版本10）构建编译时长的技术问询

Hey there, sorry to hear those hour-long build times are tanking your team's productivity—dealing with a huge product model in Policy Center v10 can definitely slow things to a crawl. Let's walk through actionable fixes for each of your questions:

一、VM属性与构建配置优化 #

These tweaks leverage your server's resources to speed up compilation and reduce overhead:

• Boost JVM memory allocation: Large product models eat up memory, leading to frequent garbage collection pauses. Add these flags to your build command or startup script:

  -Xmx16g -Xms8g -XX:+UseG1GC
  

  Adjust the values based on your server's available RAM—if you have more resources, bump Xmx to 24g or 32g for better performance.
• Enable incremental builds: Policy Center supports incremental compilation, which only rebuilds modified files instead of the entire model. Make sure your build config has incrementalBuild=true enabled (it’s usually on by default, but double-check!).
• Utilize multi-core CPUs: Speed up parallel compilation with these properties:

  -Dbuild.parallel=true -Dbuild.threads=8
  

  Set build.threads to 1.5-2x your CPU core count for optimal results.

二、禁用产品模型验证 #

Yes, you can disable this step in development environments to cut down build time significantly:

• Add this system property to your build command:

  -Dpc.model.validation.disabled=true
  

  Important note: Only use this in dev! Model validation catches critical errors in your product configuration—always re-enable it for production builds to avoid breaking your system.

三、禁用数据库升级 #

If your dev environment’s database is already up-to-date, you can skip the schema upgrade step entirely:

• Use this property to disable database upgrades during builds:

  -Ddb.upgrade.disabled=true
  

  Remember to re-enable this temporarily if you make model changes that require database schema updates, then disable it again once the upgrade is done.

Extra Tips for Long-Term Improvement #

• Split your product model: If feasible, break your large model into smaller, modular components. You can then build only the module you’re working on, using pre-compiled jars for the rest—this can slash build times drastically.
• Clean up build cache: Occasionally, corrupted cache files can trigger unnecessary full builds. Clear the cache directory (default path: ~/.policycenter/build) to rule out this issue.

备注：内容来源于stack exchange，提问作者miikey722