如何查看tumblerd当前正在处理的文件？

Hey there! I totally get the frustration when tumblerd starts hogging your CPU after cloning a large folder—let's figure out which file it's stuck on with these straightforward methods:

方法1：使用 lsof 查看已打开的文件 #

lsof (List Open Files) is a handy tool that shows all files a process has open. Here's how to use it for tumblerd:

• First, get the process ID (PID) of tumblerd with pidof tumblerd (this will output a number like 1234).
• Then run: lsof -p [PID] (replace [PID] with the number you got).
• To narrow it down to actual files (not system-related entries), add a filter: lsof -p [PID] | grep -E "(REG|DIR)"

Look for entries marked with READ in the MODE column—those are likely the files tumblerd is generating thumbnails for right now.

方法2：用 strace 实时追踪文件打开操作 #

strace traces system calls made by a process, so you can see exactly which files tumblerd is accessing as it works:

• Run: strace -p $(pidof tumblerd) -e open,openat
• This will output lines like openat(AT_FDCWD, "/path/to/your/file.jpg", O_RDONLY|O_CLOEXEC) = 12 in real-time, showing each file tumblerd tries to open.

Note: This might spit out a lot of lines if tumblerd is processing many files, but the most recent entry will be the current file it's working on.

方法3：启用tumblerd的调试日志 #

If you want more detailed context about what tumblerd is doing, you can enable debug logging:

• First, kill the running tumblerd process: kill $(pidof tumblerd)
• Then restart it with debug flags: tumblerd --debug 2>&1 | grep "Loading file"
• This will print messages like Loading file: /path/to/your/document.pdf every time it starts processing a new file.

That should help you pinpoint exactly which file is keeping tumblerd busy!

备注：内容来源于stack exchange，提问作者J. Mini