fix tritonbench noise issue

Author: xuzhao9

.github/workflows/tritonbench.yml

@@ -168,11 +168,16 @@ jobs:
         run: |
           set -eux
 
+          # using `--cpuset-cpus <SINGLE_CPU_CORE>` is critical for stabilizing the performance
+          # on this runner (using SPR CPU). This might be related to task migration/Speed Select, etc.
+          # here, we are just picking a random CPU core (core 10).
+          # see https://github.com/pytorch/pytorch-integration-testing/issues/130
           container_name=$(docker run \
             ${GPU_FLAG:-} \
             -e DEVICE_NAME \
             -e DEVICE_TYPE \
             -e CONDA_ENV \
+            --cpuset-cpus 10 \
             --ipc=host \
             --tty \
             --detach \