您好，
外置的SD卡。
使用一段时间（几天或者几个月）后，系统启动速度变慢。
调试方法：
关掉了所有的服务。
/var/log/ 下的文件都清空，没有大文件。
使用vim 打开文件也很慢。但是打开几次后，速度恢复正常。
请问有什么方法确定是什么问题。
There is no update from you for a period, assuming this is not an issue anymore.
Hence, we are closing this topic. If need further support, please open a new one.
Thanks
Hi 550399056,
Are you using the devkit or custom board for Xavier NX?
What’s the Jetpack version in use?
Have you confirmed the issue caused from SD card itself?
(i.e. would it get recovered if you use another SD card?)
Is there any error in dmesg or serial console log?