Set rush parallelism to "max" (# of cores) (#6462)

- Default on Windows is "cores - 1" (microsoft/rushstack#436)
- Increasing to "max" ensures parallelism is set to the number of cores on all platforms
- Significantly improves Windows build times

eng/pipelines/templates/jobs/archetype-sdk-client.yml

@@ -80,8 +80,10 @@ jobs:
           BuildSHA: $(Build.SourceVersion)
           RepoId: "Azure/azure-sdk-for-js"
 
+      # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+      # The default on Windows is "cores - 1" (microsoft/rushstack#436).
       - script: |
-          node eng/tools/rush-runner.js build "${{parameters.ServiceDirectory}}" --verbose
+          node eng/tools/rush-runner.js build "${{parameters.ServiceDirectory}}" --verbose -p max
         displayName: "Build libraries"
 
       - script: |
@@ -233,16 +235,22 @@ jobs:
             node common/scripts/install-run-rush.js install
           displayName: "Install dependencies"
 
+        # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+        # The default on Windows is "cores - 1" (microsoft/rushstack#436).
         - script: |
-            node eng/tools/rush-runner.js build --verbose
+            node eng/tools/rush-runner.js build --verbose -p max
           displayName: "Build libraries"
 
+        # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+        # The default on Windows is "cores - 1" (microsoft/rushstack#436).
         - script: |
-            node eng/tools/rush-runner.js build:test --verbose
+            node eng/tools/rush-runner.js build:test --verbose -p max
           displayName: "Build test assets"
 
+        # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+        # The default on Windows is "cores - 1" (microsoft/rushstack#436).
         - script: |
-            node eng/tools/rush-runner.js unit-test "${{parameters.ServiceDirectory}}" --verbose
+            node eng/tools/rush-runner.js unit-test "${{parameters.ServiceDirectory}}" --verbose -p max
           displayName: "Test libraries"
 
         # Unlink node_modules folders to significantly improve performance of subsequent tasks

eng/pipelines/templates/jobs/archetype-sdk-integration.yml

@@ -84,19 +84,25 @@ jobs:
           node common/scripts/install-run-rush.js install
         displayName: "Install dependencies"
 
+      # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+      # The default on Windows is "cores - 1" (microsoft/rushstack#436).
       - script: |
-          node common/scripts/install-run-rush.js build -t "${{parameters.PackageName}}" --verbose
+          node common/scripts/install-run-rush.js build -t "${{parameters.PackageName}}" --verbose -p max
         displayName: "Build libraries"
 
+      # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+      # The default on Windows is "cores - 1" (microsoft/rushstack#436).
       - script: |
-          node common/scripts/install-run-rush.js build:test -t "${{parameters.PackageName}}" --verbose
+          node common/scripts/install-run-rush.js build:test -t "${{parameters.PackageName}}" --verbose -p max
         displayName: "Build test assets"
 
       - ${{if ne(parameters.PreIntegrationSteps, '')}}:
           - template: ../steps/${{parameters.PreIntegrationSteps}}.yml
 
+      # Option "-p max" ensures parallelism is set to the number of cores on all platforms, which improves build times.
+      # The default on Windows is "cores - 1" (microsoft/rushstack#436).
       - script: |
-          node common/scripts/install-run-rush.js integration-test:$(TestType) -t "${{parameters.PackageName}}" --verbose
+          node common/scripts/install-run-rush.js integration-test:$(TestType) -t "${{parameters.PackageName}}" --verbose -p max
         displayName: "Integration test libraries"
         env: ${{parameters.EnvVars}}
         condition: ne(variables['TestType'],'sample')