Use Bazel to build and run aio qps worker

tools/internal_ci/helper_scripts/prepare_build_linux_perf_multilang_rc

@@ -37,4 +37,9 @@ gsutil cp gs://grpc-testing-secrets/grpc_kokoro_performance_ssh_keys/id_rsa ~/.s
 echo -e 'Host grpc-kokoro-performance*\n\tStrictHostKeyChecking no' >> ~/.ssh/config
 chmod 600 ~/.ssh/id_rsa ~/.ssh/config
 
+# Install Bazel through apt
+curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
+echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list
+sudo apt update && sudo apt install -y bazel
+
 git submodule update --init

tools/run_tests/performance/build_performance.sh

@@ -73,7 +73,7 @@ do
     python tools/run_tests/run_tests.py -l "$language" -c "$CONFIG" --compiler python2.7 --build_only -j 8
     ;;
   "python_asyncio")
-    python tools/run_tests/run_tests.py -l python -c "$CONFIG" --compiler python3.6 --build_only -j 8
+    bazel build -c opt //src/python/grpcio_tests/tests_aio/benchmark:worker
     ;;
   *)
     python tools/run_tests/run_tests.py -l "$language" -c "$CONFIG" --build_only -j 8

tools/run_tests/performance/run_worker_python_asyncio.sh

@@ -17,6 +17,4 @@ set -ex
 
 cd "$(dirname "$0")/../../.."
 
-export GRPC_ENABLE_FORK_SUPPORT=0
-export PYTHONPATH=src/python/grpcio_tests:src/python/gens
-py36_native/bin/python src/python/grpcio_tests/tests_aio/benchmark/worker.py "$@"
+blaze-bin/src/python/grpcio_tests/tests_aio/benchmark:worker "$@"