diff --git a/.github/workflows/smoke.yml b/.github/workflows/smoke.yml
index b35ab515397..19b3b459843 100644
--- a/.github/workflows/smoke.yml
+++ b/.github/workflows/smoke.yml
@@ -105,7 +105,7 @@ jobs:
         declare -A rust_target_map=( ["amd64"]="x86_64-unknown-linux-musl" ["arm64"]="aarch64-unknown-linux-musl" ["ppc64le"]="powerpc64le-unknown-linux-gnu")
         RUST_TARGET=${rust_target_map[${{ matrix.arch }}]}
         cargo install --locked --version 0.2.5 cross
-        make -e RUST_TARGET_STATIC=$RUST_TARGET -e CARGO=cross static-release
+        RUSTFLAGS="-C instrument-coverage" make -e RUST_TARGET_STATIC=$RUST_TARGET -e CARGO=cross static-release
     - name: Build Nydus RISC-V
       if: matrix.arch == 'riscv64'
       run: |
@@ -158,9 +158,9 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v4
-    - name: Docker Cache
-      uses: jpribyl/action-docker-layer-caching@v0.1.0
-      continue-on-error: true
+    # - name: Docker Cache
+    #   uses: jpribyl/action-docker-layer-caching@v0.1.0
+    #   continue-on-error: true
     - name: Download Nydus
       uses: actions/download-artifact@v4
       with:
@@ -193,6 +193,21 @@ jobs:
       with:
         go-version-file: 'go.work'
         cache-dependency-path: "**/*.sum"
+    - name: Free Disk Space
+      uses: jlumbroso/free-disk-space@main
+      with:
+        # this might remove tools that are actually needed,
+        # if set to "true" but frees about 6 GB
+        tool-cache: false
+        
+        # all of these default to true, but feel free to set to
+        # "false" if necessary for your workflow
+        android: true
+        dotnet: true
+        haskell: true
+        large-packages: true
+        docker-images: true
+        swap-storage: true
     - name: Integration Test
       run: |
         sudo mkdir -p /usr/bin/nydus-latest /home/runner/work/workdir
@@ -215,6 +230,16 @@ jobs:
 
         curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sudo sh -s -- -b /usr/bin v1.64.8
         sudo -E make smoke-only
+    - name: Generate integration test code coverage
+      run: |
+        cargo +stable install grcov --locked
+        grcov . -s . --binary-path ./target/x86_64-unknown-linux-musl/release -t covdir --branch --ignore-not-existing -o ./lcov.info
+    - name: Upload nydus coverage file
+      uses: actions/upload-artifact@v4
+      with:
+        name: integration-test-coverage-artifact
+        path: |
+          lcov.info
 
   nydus-unit-test:
     runs-on: ubuntu-latest
@@ -254,7 +279,7 @@ jobs:
     - name: Upload contrib coverage file
       uses: actions/upload-artifact@v4
       with:
-        name: contrib-test-coverage-artifact
+        name: contrib-unit-test-coverage-artifact
         path: |
           contrib/nydusify/coverage.txt
 
@@ -283,27 +308,31 @@ jobs:
       - name: Upload nydus coverage file
         uses: actions/upload-artifact@v4
         with:
-          name: nydus-test-coverage-artifact
+          name: nydus-unit-test-coverage-artifact
           path: |
             codecov.json
 
   upload-coverage-to-codecov:
     runs-on: ubuntu-latest
-    needs: [contrib-unit-test-coverage, nydus-unit-test-coverage]
+    needs: [contrib-unit-test-coverage, nydus-unit-test-coverage, nydus-integration-test]
     steps:
     - uses: actions/checkout@v4
-    - name: Download nydus coverage file
+    - name: Download nydus unit test coverage file
+      uses: actions/download-artifact@v4
+      with:
+        name: nydus-unit-test-coverage-artifact
+    - name: Download contrib unit test coverage file
       uses: actions/download-artifact@v4
       with:
-        name: nydus-test-coverage-artifact
-    - name: Download contrib coverage file
+        name: contrib-unit-test-coverage-artifact
+    - name: Download integration test coverage file
       uses: actions/download-artifact@v4
       with:
-        name: contrib-test-coverage-artifact
+        name: integration-test-coverage-artifact
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4
       with:
-        files: ./codecov.json,./coverage.txt
+        files: ./codecov.json,./coverage.txt,./lcov.info
         token: ${{ secrets.CODECOV_TOKEN }}
         verbose: true
         fail_ci_if_error: true
diff --git a/smoke/tests/native_layer_test.go b/smoke/tests/native_layer_test.go
index 30e20dfd9a1..f9f292475a2 100644
--- a/smoke/tests/native_layer_test.go
+++ b/smoke/tests/native_layer_test.go
@@ -65,7 +65,8 @@ func (n *NativeLayerTestSuite) TestMakeLayers() test.Generator {
 					param.GetString(paramFSVersion) != "5" ||
 					param.GetString(paramBatch) != "0" ||
 					param.GetBool(paramEncrypt) != false ||
-					param.GetString(paramChunkDedupDb) != "")
+					param.GetString(paramChunkDedupDb) != "" ||
+					param.GetString(paramCacheType) != "")
 			}
 
 			// rafs v6 not support cached mode nor dummy cache