Add page fault lmbench

.github/workflows/benchmark_asterinas.yml

@@ -43,6 +43,8 @@ jobs:
           - lmbench-select-file
           - lmbench-fs-create-delete-files-0k
           - lmbench-fs-create-delete-files-10k
+          # Mmap-related benchmarks
+          - lmbench-pagefault
       fail-fast: false
     timeout-minutes: 60
     container: 

test/benchmark/lmbench-pagefault/config.json

@@ -0,0 +1,7 @@
+{
+    "alert_threshold": "125%",
+    "alert_tool": "customSmallerIsBetter",
+    "search_pattern": "Pagefaults on ",
+    "result_index": "4",
+    "description": "The latency of handling page fault on a single processor."
+}

test/benchmark/lmbench-pagefault/result_template.json

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

test/benchmark/lmbench-pagefault/run.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: MPL-2.0
+
+set -e
+
+echo "*** Running the LMbench page fault latency test ***"
+
+dd if=/dev/zero of=/ext2/test_file bs=1M count=256
+/benchmark/bin/lmbench/lat_pagefault -P 1 /ext2/test_file