make server client run concurrently

.github/workflows/benchmark_group_2.yml

@@ -68,19 +68,26 @@ jobs:
         run: |
           sleep 5
           cat ${{ github.workspace }}/logs/app_6379.log
-      - name: test server
-        run: echo $(curl -sSL $SERVER_IP:26379/s3/test1.txt)
+      - name: spin
+        run: sleep 60
   run-benchmark:
     name: Run Benchmark
     needs: 
       - start-runner
-      - run-server
     runs-on: ${{ needs.start-runner.outputs.benchmark-label }} # run the job on the newly created runner  
     env:
       SERVER_URL: http://${{ needs.start-runner.outputs.private-ip }}:26379
     steps:
       - name: Clone Server
         uses: actions/checkout@v4
+      - name: Build Benchmark driver
+        run: cargo build
+      - name: Wait for server
+        run: |
+          until curl --output /dev/null --silent --head --fail $SERVER_URL/; do
+              printf '.'
+              sleep 5
+          done
       - name: Run Benchmark
         run: cargo run
   stop-runner: