diff --git a/.github/workflows/perf.yml b/.github/workflows/perf.yml
index 8e7029bd6e8..cade518d447 100644
--- a/.github/workflows/perf.yml
+++ b/.github/workflows/perf.yml
@@ -41,7 +41,7 @@ jobs:
         run: |
           if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
             echo "run_biweekly=true" >> $GITHUB_OUTPUT
-          elif [ $(( $(date +'%V') % 2 )) -eq 1 ]; then
+          elif [ $(( $(date +'%V') % 2 )) -eq 0 ]; then
             echo "run_biweekly=true" >> $GITHUB_OUTPUT
           else
             echo "run_biweekly=false" >> $GITHUB_OUTPUT
@@ -66,18 +66,23 @@ jobs:
           echo "SPEC_DIR=/nfs/home/ci-runner/master-perf-report/cr${DATE}-${SHORT_SHA}" >> $GITHUB_ENV
           echo "CKPT_HOME=/nfs/home/share/checkpoints_profiles/spec06_rv64gcb_O3_20m_gcc12.2.0-intFpcOff-jeMalloc/checkpoint-0-0-0" >> $GITHUB_ENV
           echo "CKPT_JSON_PATH=/nfs/home/share/checkpoints_profiles/spec06_rv64gcb_O3_20m_gcc12.2.0-intFpcOff-jeMalloc/checkpoint-0-0-0/cluster-0-0.json" >> $GITHUB_ENV
-
+    
       - name: Test
         if: steps.determine_run.outputs.run_biweekly == 'true'
         run: |
-          python3 $GITHUB_WORKSPACE/scripts/xiangshan.py --clean
-          mkdir -p $NOOP_HOME/build
-          echo "hello world" > $NOOP_HOME/build/test.log
+          if [ -e "$SPEC_DIR/emu" ]; then
+            echo "no need build"
+          else
+            python3 $GITHUB_WORKSPACE/scripts/xiangshan.py --clean
+            mkdir -p $NOOP_HOME/build
+            echo "need build"
+          fi
 
       # - name: Clean Up
       #   if: steps.determine_run.outputs.run_biweekly == 'true'
       #   run: |
       #     python3 $GITHUB_WORKSPACE/scripts/xiangshan.py --clean
+
       # - name: Build EMU with DRAMsim3
       #   if: steps.determine_run.outputs.run_biweekly == 'true'
       #   run: |
@@ -93,6 +98,7 @@ jobs:
       #       mkdir -p $SPEC_DIR
       #       cp $NOOP_HOME/build/emu $SPEC_DIR/emu
       #     fi
+
       # - name: Run SPEC CPU2006 checkpoints
       #   if: steps.determine_run.outputs.run_biweekly == 'true'
       #   run: |
@@ -101,6 +107,7 @@ jobs:
       #       --xs $NOOP_HOME --threads 16 --dir $SPEC_DIR --resume \
       #       -L "node033 node034 node036 node037 node038 node039 node040 node041 node042"
       #     find $NOOP_HOME/build/ -maxdepth 1 -name "*.vcd" -exec mv {} $SPEC_DIR \;
+
       # - name: Report SPEC CPU2006 score
       #   if: steps.determine_run.outputs.run_biweekly == 'true'
       #   run: |
@@ -114,6 +121,7 @@ jobs:
       #     mkdir $GITHUB_WORKSPACE/result
       #     cp $SPEC_DIR/err_ckps.json $GITHUB_WORKSPACE/result/err_ckps.json
       #     cp $SPEC_DIR/score.txt $GITHUB_WORKSPACE/result/score.txt
+
       # - name: Upload result
       #   if: steps.determine_run.outputs.run_biweekly == 'true'
       #   uses: actions/upload-artifact@v4