diff --git a/.github/workflows/benchmark.yaml b/.github/workflows/benchmark.yaml
index a6438df..67acb51 100644
--- a/.github/workflows/benchmark.yaml
+++ b/.github/workflows/benchmark.yaml
@@ -46,25 +46,53 @@ jobs:
       - name: Run bench against baseline
         run: cargo bench --bench "*iai*" > iai_feature
 
-      - name: Write result in PR
-        uses: actions/github-script@v5
+      - name: Find Comment
+        uses: peter-evans/find-comment@v2
+        id: fc
         with:
-          script: |
-            const fs = require('fs');
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-author: 'github-actions[bot]'
+          body-includes: Benchmark Result
 
-            // read the output file
-            // const criterion_result = fs.readFileSync("bench_result", {encoding:'utf8', flag:'r'});
-            // const iai_baseline = fs.readFileSync("iai_baseline", {encoding:'utf8', flag:'r'});
-            const iai_feature = fs.readFileSync("iai_feature", {encoding:'utf8', flag:'r'});
+      - id: get-comment-body
+        run: |
+          content=$(cat iai_feature)
+          echo $content
+          body="Benchmark Result:```txt\n${content}```\n"
+          echo $body
+          body="${body//$'\n'/'%0A'}"
+          body="${body//'%'/'%25'}"
+          echo $body
+          echo "::set-output name=body::$body"
+
+      - name: Create or update comment
+        uses: peter-evans/create-or-update-comment@v2
+        with:
+          comment-id: ${{ steps.fc.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          body: ${{ steps.get-comment-body.outputs.body }}
+          edit-mode: replace
 
-            // form message
-            const quote = "```";
-            const message = `👋\n\niai changes:\n ${quote}txt\n${iai_feature}${quote}`;
 
-            // post comment
-            github.rest.issues.createComment({
-              issue_number: context.issue.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: message
-            })
+      #- name: Write result in PR
+      #  uses: actions/github-script@v5
+      #  with:
+      #    script: |
+      #      const fs = require('fs');
+#
+      #      // read the output file
+      #      // const criterion_result = fs.readFileSync("bench_result", {encoding:'utf8', flag:'r'});
+      #      // const iai_baseline = fs.readFileSync("iai_baseline", {encoding:'utf8', flag:'r'});
+      #      const iai_feature = fs.readFileSync("iai_feature", {encoding:'utf8', flag:'r'});
+#
+      #      // form message
+      #      const quote = "```";
+      #      const message = `👋\n\niai changes:\n ${quote}txt\n${iai_feature}${quote}`;
+#
+      #      // post comment
+      #      github.rest.issues.createComment({
+      #        issue_number: context.issue.number,
+      #        owner: context.repo.owner,
+      #        repo: context.repo.repo,
+      #        body: message
+      #      })