[integ-tests] Increase NCCL benchmark baseline

The baselines are 90% of the current performance

Author: hanwen-cluster

tests/integration-tests/tests/common/nccl_common.py

@@ -69,8 +69,8 @@ def install_and_run_nccl_benchmarks(remote_command_executor, mpi_module, schedul
         "p4d.24xlarge": 26.0,
         # p5.48xlarge - Expected "in-place busbw" bandwidth with 2 nodes, 8 tasks per node is about 250GB/s
         "p5.48xlarge": 250.0,
-        "p6-b200.48xlarge": 300,
-        "p6e-gb200.36xlarge": 500,
+        "p6-b200.48xlarge": 570,  # Initial testing performance 631.17
+        "p6e-gb200.36xlarge": 650,  # Initial testing performance 719.17
     }
 
     expected_bandwidth = instance_bandwidth_dict.get(instance)