test(lmbench): 添加进程间通信 (IPC) 性能测试脚本

添加 IPC 机制的性能测试脚本：

管道测试：
- pipe_bw.sh: 管道带宽测试
- pipe_lat.sh: 管道延迟测试

FIFO 测试：
- fifo_lat.sh: FIFO 延迟测试

信号量测试：
- semaphore_lat.sh: 信号量操作延迟测试

这些测试用于评估不同 IPC 机制的性能特征。

Signed-off-by: yuming <mingjiangyu1@qq.com>

Author: mistcoversmyeyes

user/apps/tests/benchmark/lmbench/scripts/fifo_lat.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: fifo_lat
+# Binary: lat_fifo
+# Description: FIFO latency test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running fifo_lat test ==="
+${LMBENCH_BIN}/lat_fifo -P 1
+
+echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/scripts/pipe_bw.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: pipe_bw
+# Binary: bw_pipe
+# Description: Pipe bandwidth test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running pipe_bw test ==="
+${LMBENCH_BIN}/bw_pipe -P 1
+
+echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/scripts/pipe_lat.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: pipe_lat
+# Binary: lat_pipe
+# Description: Pipe latency test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running pipe_lat test ==="
+${LMBENCH_BIN}/lat_pipe -P 1
+
+echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/scripts/semaphore_lat.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: semaphore_lat
+# Binary: lat_sem
+# Description: Semaphore latency test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running semaphore_lat test ==="
+${LMBENCH_BIN}/lat_sem -P 1 -N 21
+
+echo "Test completed successfully"