Report number of CPU cores and threads in system info

benchmark/foundation/system_info.py

@@ -1,5 +1,6 @@
 import json
 import platform
+import psutil
 import subprocess
 import sys
 
@@ -68,6 +69,8 @@ def gatherSystemInfo(ctx):
     # TODO(sergey): Make this to work on Windows and macOS
     cpu_info = cpuinfo.get_cpu_info()
     system_info['cpu_brand'] = cpu_info['brand']
+    system_info["num_cpu_cores"] = psutil.cpu_count(logical=False)
+    system_info["num_cpu_threads"] = psutil.cpu_count(logical=True)
     system_info['devices'] = _getBlenderDeviceInfo(ctx)
     # TODO(sergey): query number of CPUs and threads.
     return system_info