test(lmbench): 添加进程和信号性能测试脚本

添加进程管理和信号处理的性能测试脚本：

进程测试：
- process_fork_lat.sh: fork 系统调用延迟
- process_exec_lat.sh: exec 系统调用延迟
- process_shell_lat.sh: shell 进程启动延迟
- process_ctx_lat.sh: 进程上下文切换延迟
- process_getppid_lat.sh: getppid 系统调用延迟

信号测试：
- signal_install_lat.sh: 信号处理器安装延迟
- signal_catch_lat.sh: 信号捕获处理延迟
- signal_prot_lat.sh: 信号保护处理延迟

这些测试评估进程生命周期和信号处理的性能开销。

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

Author: mistcoversmyeyes

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

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: process_ctx_lat
+# Binary: lat_ctx
+# Description: Process context switch latency test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running process_ctx_lat test ==="
+${LMBENCH_BIN}/lat_ctx -P 1 18
+
+echo "Test completed successfully"

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

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

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

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

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

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

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

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

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

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

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

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

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

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Test: signal_prot_lat
+# Binary: lat_sig
+# Description: Signal protection latency test
+
+set -e
+
+if [ -z "$LMBENCH_BIN" ]; then
+    echo "Error: Please source env.sh first"
+    exit 1
+fi
+
+echo "=== Running signal_prot_lat test ==="
+${LMBENCH_BIN}/lat_sig -W 30 -N 300 prot ${LMBENCH_EXT2_DIR}/${LMBENCH_TEST_FILE}
+
+echo "Test completed successfully"