diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
new file mode 100644
index 00000000..a46a41bb
--- /dev/null
+++ b/.github/workflows/benchmarks.yml
@@ -0,0 +1,26 @@
+name: Performance monitoring 
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+    
+
+jobs:
+  benchmarks:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]          
+        jvm: [17,19]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: coursier/cache-action@v6
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.jvm }}
+      - run: ./mill j${{ matrix.jvm }}.benchmarks.test -f1 -o j${{ matrix.jvm }}-${{ matrix.os }}.bench -rff j${{ matrix.jvm }}-${{ matrix.os }}.json -rf json
+      - uses: actions/upload-artifact@v3
+        with:
+          path: out/j${{ matrix.jvm }}/benchmarks/test/jmhRun.dest/*
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eebb15ef..1ef511ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,9 +1,6 @@
 name: SLinC CI
 on:
-  push:
-
-env:
-  JACOCO_VERSION: 0.8.8
+  pull_request:
 
 
 jobs: 
@@ -52,22 +49,4 @@ jobs:
         uses: codecov/codecov-action@v3 
         with:
           directory: out/scoverage/xmlReportAll.dest
-          flags: unittests
-  # benchmarks:
-  #   needs: unit-tests
-  #   strategy:
-  #     matrix:
-  #       os: [ubuntu-latest, macos-latest, windows-latest]          
-  #       jvm: [17,19]
-  #   runs-on: ${{ matrix.os }}
-  #   steps:
-  #     - uses: actions/checkout@v3
-  #     - uses: coursier/cache-action@v6
-  #     - uses: actions/setup-java@v3
-  #       with:
-  #         distribution: 'temurin'
-  #         java-version: ${{ matrix.jvm }}
-  #     - run: ./mill j${{ matrix.jvm }}.benchmarks.test -f1 -o j${{ matrix.jvm }}-${{ matrix.os }}.bench -rff j${{ matrix.jvm }}-${{ matrix.os }}.json -rf json
-  #     - uses: actions/upload-artifact@v3
-  #       with:
-  #         path: out/j${{ matrix.jvm }}/benchmarks/test/jmhRun.dest/*
+          flags: unittests
\ No newline at end of file