On Fri, Sep 16, 2022 at 04:08:52PM -0700, Ivan Babrou wrote: > We considered putting the number of open files in /proc/pid/stat. > Unfortunately, counting the number of fds involves iterating the fdtable, > which means that it might slow down /proc/pid/stat for processes > with many open files. Instead we opted to put this info in /proc/pid/fd > as a size member of the stat syscall result. Previously the reported > number was zero, so there's very little risk of breaking anything, > while still providing a somewhat logical way to count the open files. Instead of using the st_size of /proc/<pid>/fd, why not return that value in st_nlink? /proc/<pid>/fd is a directory, so having st_nlinks return number of fd's plus 2 (for . and ..) would be much more natural. Cheers, - Ted
