Add LMbench lat_sem test

.github/workflows/benchmark_asterinas.yml

@@ -45,6 +45,8 @@ jobs:
           - lmbench-fs-create-delete-files-10k
           # Mmap-related benchmarks
           - lmbench-pagefault
+          # Semaphore benchmark
+          - lmbench-semaphore
       fail-fast: false
     timeout-minutes: 60
     container: 

test/benchmark/lmbench-semaphore/config.json

@@ -0,0 +1,7 @@
+{
+    "alert_threshold": "125%",
+    "alert_tool": "customSmallerIsBetter",
+    "search_pattern": "Semaphore latency:",
+    "result_index": "3",
+    "description": "The latency of semaphore on a single processor."
+}

test/benchmark/lmbench-semaphore/result_template.json

@@ -0,0 +1,14 @@
+[
+    {
+        "name": "Average semaphore latency on Linux",
+        "unit": "µs",
+        "value": 0,
+        "extra": "linux_avg"
+    },
+    {
+        "name": "Average semaphore latency on Asterinas",
+        "unit": "µs",
+        "value": 0,
+        "extra": "aster_avg"
+    }
+]

test/benchmark/lmbench-semaphore/run.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: MPL-2.0
+
+set -e
+
+echo "*** Running the LMbench semaphore latency test ***"
+
+/benchmark/bin/lmbench/lat_sem -P 1