temporarily speed up presubmit feedback

Author: parthea

.github/workflows/unittest.yml

@@ -29,7 +29,7 @@ jobs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
       is_full_run: ${{ steps.check-label.outputs.is_full_run }}
     env:
-      MAX_SHARDS: 16
+      MAX_SHARDS: 50
       # Define weights for long-running unit tests to balance shard execution time
       # Each weight is roughly 1 minute of expected execution time
       # Default for unset packages is 1

ci/get_package_shards.py

@@ -165,7 +165,7 @@ def group_packages(packages_map):
 
     # Dynamically determine target weight to balance across max shards.
     max_shards = int(os.environ.get("MAX_SHARDS", 16))
-    target_weight = max(10, math.ceil(total_weight / max_shards))
+    target_weight = max(5, math.ceil(total_weight / max_shards))
 
     shards_list = []
     current_shard_items = []