fix(lmbench): 修复多个测试用例的权限和文件问题

- 修复 `lmbench/mem_map_lat` 测例的权限问题，确保测试能够正确执行。
- 在 `ramfs_copy_files_bw` 测试中添加 `sudo`，以确保有足够的权限进行文件操作。
- 修复 `vfs_xx_lat` 系列测试缺少临时文件的问题，确保测试环境完整。

Author: mistcoversmyeyes

user/apps/tests/benchmark/lmbench/test_cases/mem_mmap_lat.sh

@@ -11,7 +11,7 @@ ENV_PATH="${SCTIPDIR}/../env.sh"
 source ${ENV_PATH}
 
 echo "=== Running mem_mmap_lat test ==="
-${LMBENCH_BIN_DIR}/lat_mmap 4m ${LMBENCH_EXT4_DIR}/${LMBENCH_TEST_FILE}
+sudo ${LMBENCH_BIN_DIR}/lat_mmap 4m ${LMBENCH_EXT4_DIR}/${LMBENCH_TEST_FILE}
 
 if [ $? -eq 0 ]; then
     echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/test_cases/ramfs_copy_files_bw.sh

@@ -11,7 +11,7 @@ ENV_PATH="${SCTIPDIR}/../env.sh"
 source ${ENV_PATH}
 
 echo "=== Running ramfs_copy_files_bw test ==="
-${LMBENCH_BIN_DIR}/lmdd if=${LMBENCH_TMP_DIR}/${LMBENCH_ZERO_FILE} of=${LMBENCH_TMP_DIR}/${LMBENCH_TEST_FILE}
+sudo ${LMBENCH_BIN_DIR}/lmdd if=${LMBENCH_TMP_DIR}/${LMBENCH_ZERO_FILE} of=${LMBENCH_TMP_DIR}/${LMBENCH_TEST_FILE}
 
 if [ $? -eq 0 ]; then
     echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/test_cases/vfs_fstat_lat.sh

@@ -11,7 +11,9 @@ ENV_PATH="${SCTIPDIR}/../env.sh"
 source ${ENV_PATH}
 
 echo "=== Running VFS fstat latency test ==="
+touch test_file
 ${LMBENCH_BIN_DIR}/lat_syscall -P 1 fstat test_file
+rm test_file
 
 if [ $? -eq 0 ]; then
     echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/test_cases/vfs_open_lat.sh

@@ -11,7 +11,9 @@ ENV_PATH="${SCTIPDIR}/../env.sh"
 source ${ENV_PATH}
 
 echo "=== Running VFS open latency test ==="
+touch testfile
 ${LMBENCH_BIN_DIR}/lat_syscall -P 1 -W 1000 -N 1000 open testfile
+rm testfile
 
 if [ $? -eq 0 ]; then
     echo "Test completed successfully"

user/apps/tests/benchmark/lmbench/test_cases/vfs_stat_lat.sh

@@ -11,7 +11,9 @@ ENV_PATH="${SCTIPDIR}/../env.sh"
 source ${ENV_PATH}
 
 echo "=== Running VFS stat latency test ==="
+touch testfile
 ${LMBENCH_BIN_DIR}/lat_syscall -P 1 -W 1000 -N 1000 stat testfile
+rm testfile
 
 if [ $? -eq 0 ]; then
     echo "Test completed successfully"