diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index e007b8241f..fb7111585f 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -218,17 +218,17 @@ jobs:
           else
             echo "No cycle change detect"
           fi
-      - uses: geekyeggo/delete-artifact@v4
+      - uses: geekyeggo/delete-artifact@v5
         with:
           # test-reports has been used, it can be deleted
           name: test-reports-*
 
   clean-after-cancelled:
-    name: "Clean test reports [CANCELLED]"
+    name: "Clean test reports [ON CANCELLED]"
     if: ${{ cancelled() }}
     runs-on: [self-hosted, linux, nixos]
     needs: [run-testcases]
     steps:
-      - uses: geekyeggo/delete-artifact@v4
+      - uses: geekyeggo/delete-artifact@v5
         with:
           name: test-reports-*
diff --git a/nix/t1/mlirbc.nix b/nix/t1/mlirbc.nix
index b617df2283..ede896bf0b 100644
--- a/nix/t1/mlirbc.nix
+++ b/nix/t1/mlirbc.nix
@@ -12,7 +12,7 @@
 }:
 
 assert lib.assertMsg
-  (lib.elem target [ "ip" "ipemu" "subsystem" ])
+  (lib.elem target [ "ip" "ipemu" "subsystem" "subsystememu" ])
   "Unknown elaborate target ${target}";
 
 let
diff --git a/nix/t1/rtl.nix b/nix/t1/rtl.nix
index 2534d90107..3581c46bf3 100644
--- a/nix/t1/rtl.nix
+++ b/nix/t1/rtl.nix
@@ -13,7 +13,7 @@ let
     "--lowering-options=verifLabels,omitVersionComment"
     "--strip-debug-info"
   ];
-  fixupFilelist = lib.elem mlirbc.elaborateTarget [ "ipemu" ];
+  fixupFilelist = lib.elem mlirbc.elaborateTarget [ "ipemu" "subsystememu" ];
 in
 stdenvNoCC.mkDerivation {
   name = "t1-${mlirbc.elaborateConfig}-${mlirbc.elaborateTarget}-rtl";
diff --git a/script/default.nix b/script/default.nix
index 9aa9da3581..389d968f4e 100644
--- a/script/default.nix
+++ b/script/default.nix
@@ -5,6 +5,7 @@
 
 , metals
 , mill
+, graalvm-ce
 }:
 
 let
@@ -48,6 +49,7 @@ let
 
     nativeBuildInputs = [
       mill
+      graalvm-ce
 
       makeWrapper
       passthru.millDeps.setupHook
diff --git a/script/src/Main.scala b/script/src/Main.scala
index 1daf89e07a..49b1820c45 100644
--- a/script/src/Main.scala
+++ b/script/src/Main.scala
@@ -248,6 +248,8 @@ object Main:
             s"Can't use $dumpCycle as ratio, use 0 as waveform dump start point"
           )
           0
+        else if ratio == 0.0 then
+          0
         else
           val cycleRecordFilePath =
             os.pwd / ".github" / "cases" / config / "default.json"
@@ -340,69 +342,9 @@ object Main:
       Logger.info(s"Emulator log save to ${emulatorLogPath}")
 
     if (trace.value) then
-      Logger.info(s"Trace file save to ${outputPath} / trace.fst")
+      Logger.info(s"Trace file save to ${outputPath}/wave.fst")
   end ipemu
 
-  @main def subsystememu(
-      @arg(
-        name = "case",
-        short = 'c',
-        doc = "name alias for loading test case"
-      ) testCase: String,
-      @arg(
-        name = "config",
-        short = 'c',
-        doc = "configuration name"
-      ) config: String,
-      @arg(
-        name = "trace",
-        short = 't',
-        doc = "use emulator with trace support"
-      ) trace: Flag,
-      @arg(
-        name = "trace-file",
-        doc = "Output path of the trace file"
-      ) traceFile: Option[String],
-      @arg(
-        doc = "Force using x86_64 as cross compiling host platform"
-      ) forceX86: Boolean = false,
-      @arg(
-        name = "out-dir",
-        doc = "path to save wave file and perf result file"
-      ) outDir: Option[String],
-      @arg(
-        name = "base-out-dir",
-        doc = "save result files in {base_out_dir}/{config}/{case}/{run_config}"
-      ) baseOutDir: Option[String],
-      @arg(
-        name = "emulator-path",
-        doc = "path to emulator"
-      ) emulatorPath: Option[String]
-  ): Unit =
-    val caseElfPath = resolveTestElfPath(config, testCase, forceX86)
-    val outputPath =
-      prepareOutputDir(outDir, baseOutDir, config, "subsystem", testCase)
-    val emulator = if (!emulatorPath.isEmpty) then
-      val emuPath = os.Path(emulatorPath.get, os.pwd)
-      if (!os.exists(emuPath)) then
-        sys.error(s"No emulator found at path: ${emulatorPath.get}")
-      emuPath
-    else resolveEmulatorPath(config, "subsystem", trace.value)
-
-    val emuArgs =
-      Seq(s"+init_file=${caseElfPath}") ++ optionals(
-        trace.value,
-        Seq(s"+trace_file=${
-            if (traceFile.isDefined) then os.Path(traceFile.get, os.pwd)
-            else outputPath / "trace.fst"
-          }")
-      )
-    os.proc(emuArgs).call()
-
-    if (trace.value) then
-      Logger.info(s"Trace file save to ${outputPath} / trace.fst")
-  end subsystememu
-
   @main def listConfig(): Unit =
     os.proc(
       Seq(