[Bench] add SubmitKernel benchmark variant with longer kernel

devops/scripts/benchmarks/benches/compute.py

@@ -149,15 +149,17 @@ def benchmarks(self) -> list[Benchmark]:
             for in_order_queue in [0, 1]:
                 for measure_completion in [0, 1]:
                     for use_events in [0, 1]:
-                        benches.append(
-                            SubmitKernel(
-                                self,
-                                runtime,
-                                in_order_queue,
-                                measure_completion,
-                                use_events,
+                        for kernel_exec_time in [1, 20]:
+                            benches.append(
+                                SubmitKernel(
+                                    self,
+                                    runtime,
+                                    in_order_queue,
+                                    measure_completion,
+                                    use_events,
+                                    kernel_exec_time,
+                                )
                             )
-                        )
 
         # Add SinKernelGraph benchmarks
         for runtime in self.enabled_runtimes():
@@ -332,11 +334,20 @@ def teardown(self):
 
 
 class SubmitKernel(ComputeBenchmark):
-    def __init__(self, bench, runtime: RUNTIMES, ioq, MeasureCompletion=0, UseEvents=0):
+    def __init__(
+        self,
+        bench,
+        runtime: RUNTIMES,
+        ioq,
+        MeasureCompletion=0,
+        UseEvents=0,
+        KernelExecTime=1,
+    ):
         self.ioq = ioq
         self.runtime = runtime
         self.MeasureCompletion = MeasureCompletion
         self.UseEvents = UseEvents
+        self.KernelExecTime = KernelExecTime
         self.NumKernels = 10
         super().__init__(
             bench, f"api_overhead_benchmark_{runtime.value}", "SubmitKernel"
@@ -353,7 +364,11 @@ def name(self):
         # to match the existing already stored results
         events_str = " not using events" if not self.UseEvents else ""
 
-        return f"api_overhead_benchmark_{self.runtime.value} SubmitKernel {order}{completion_str}{events_str}"
+        kernel_exec_time_str = (
+            f" KernelExecTime={self.KernelExecTime}" if self.KernelExecTime != 1 else ""
+        )
+
+        return f"api_overhead_benchmark_{self.runtime.value} SubmitKernel {order}{completion_str}{events_str}{kernel_exec_time_str}"
 
     def display_name(self) -> str:
         order = "in order" if self.ioq else "out of order"
@@ -362,6 +377,8 @@ def display_name(self) -> str:
             info.append("with measure completion")
         if self.UseEvents:
             info.append("using events")
+        if self.KernelExecTime != 1:
+            info.append(f"KernelExecTime={self.KernelExecTime}")
         additional_info = f" {' '.join(info)}" if info else ""
         return f"{self.runtime.value.upper()} SubmitKernel {order}{additional_info}, NumKernels {self.NumKernels}"
 
@@ -373,7 +390,11 @@ def explicit_group(self):
         # to match the existing already stored results
         events_str = " not using events" if not self.UseEvents else ""
 
-        return f"SubmitKernel {order}{completion_str}{events_str}"
+        kernel_exec_time_str = (
+            f" KernelExecTime={self.KernelExecTime}" if self.KernelExecTime != 1 else ""
+        )
+
+        return f"SubmitKernel {order}{completion_str}{events_str}{kernel_exec_time_str}"
 
     def description(self) -> str:
         order = "in-order" if self.ioq else "out-of-order"
@@ -386,6 +407,7 @@ def description(self) -> str:
         return (
             f"Measures CPU time overhead of submitting {order} kernels through {runtime_name} API{completion_desc}. "
             f"Runs {self.NumKernels} simple kernels with minimal execution time to isolate API overhead from kernel execution time."
+            f"Each kernel executes for approximately {self.KernelExecTime} micro seconds."
         )
 
     def range(self) -> tuple[float, float]:
@@ -398,7 +420,7 @@ def bin_args(self) -> list[str]:
             "--iterations=100000",
             "--Profiling=0",
             f"--NumKernels={self.NumKernels}",
-            "--KernelExecTime=1",
+            f"--KernelExecTime={self.KernelExecTime}",
             f"--UseEvents={self.UseEvents}",
         ]