message: Configure Gradle parallelism and Kotlin compiler in `sdk-sync`
diff: @@ -114,15 +114,36 @@ impl DefaultSdkGenerator {
  #[instrument(skip(self))]
  fn aws_sdk_assemble(&self) -> Result<()> {
  info!("Generating the SDK...");
  +
  let mut command = Command::new("./gradlew");
  command.arg("--no-daemon"); // Don't let Gradle continue running after the build
  + command.arg("--no-parallel"); // Disable Gradle parallelism
  + command.arg("--max-workers=1"); // Cap the Gradle workers at 1
  command.arg("--info"); // Increase logging verbosity for failure debugging
  + // Customize the Gradle daemon JVM args (these are required even with `--no-daemon`
  + // since Gradle still forks out a daemon process that gets terminated at the end)
  + command.arg(format!(
  + "-Dorg.gradle.jvmargs={}",
  + [
  + // Retain default Gradle JVM args
  + "-Xmx512m",
  + "-XX:MaxMetaspaceSize=256m",
  + // Disable incremental compilation and caching since we're compiling exactly once per commit
  + "-Dkotlin.incremental=false",
  + "-Dkotlin.caching.enabled=false",
  + // Run the compiler in the gradle daemon process to avoid more forking thrash
  + "-Dkotlin.compiler.execution.strategy=in-process"
  + ]
  + .join(" ")
  + ));
  +
  // Disable Smithy's codegen parallelism in favor of sdk-sync parallelism
  command.arg(format!(
  "-Djava.util.concurrent.ForkJoinPool.common.parallelism={}",
  self.smithy_parallelism
  ));
  +
  command.arg("-Paws.fullsdk=true");
  command.arg(format!(
  "-Paws.sdk.previous.release.versions.manifest={}",
  