minor tune

Author: Bodong-Yang

src/otaclient/configs/_cfg_consts.py

@@ -29,31 +29,31 @@
 class StorageDeviceType(StrEnum):
     """Classification of rootfs storage device performance tier.
 
-    L1: High-performance storage (NVMe SSD).
-    L2: Medium-performance storage (SATA SSD).
-    L3: Low-performance storage (eMMC, SATA HDD, or unknown).
+    - L1: High-performance storage (NVMe SSD).
+    - L2: Medium-performance storage (SATA SSD).
+    - L3: Low-performance storage (eMMC, SATA HDD, or unknown).
+
+    Thread count ranges per storage tier (scaled by CPU count):
+
+    - L1 (NVMe SSD):  24 - 32 threads
+    - L2 (SATA SSD):  16 - 24 threads
+    - L3 (eMMC/HDD):  10 - 16 threads
     """
 
     L1 = "L1"
     L2 = "L2"
     L3 = "L3"
 
     def map_device_rank_to_download_threads(self) -> int:
-        """Calculate download thread count based on this storage tier and CPU count.
-
-        Thread count ranges per storage tier (scaled by CPU count):
-            L1 (NVMe SSD):  24 - 32 threads
-            L2 (SATA SSD):  16 - 24 threads
-            L3 (eMMC/HDD):  8 - 12 threads
-        """
+        """Calculate download thread count based on this storage tier and CPU count."""
         cpu_count = os.cpu_count() or 4
 
         if self == StorageDeviceType.L1:
             threads = min(32, max(24, cpu_count * 4))
         elif self == StorageDeviceType.L2:
             threads = min(24, max(16, cpu_count * 3))
         else:  # L3
-            threads = min(12, max(8, cpu_count * 2))
+            threads = min(16, max(10, cpu_count * 2))
 
         logger.info(
             f"download threads calculated: {threads} "