Re: [bug #15384] find misbehaves when parent directory is not readable

[Jim Meyering]

"James Youngman" <address@hidden> wrote:
> On 8/22/07, Eric Blake <address@hidden> wrote:
>> At this point, since we are about to create a stable 4.4 branch where the
>> fts()-based find works, do we still need to worry about the home-grown
>> oldfind, which still has the bug?
>
> Yes, for the time being, I think so.  I believe that last time I
> measured it, the fts() based version was measurably slower.   But the
> outstanding bug is problematic.

Hi James,

When you measured that, did the system you used have sufficient
openat support?  If not, you probably saw the performance penalty of
the openat/fstatat/etc. wrapper functions that simulate the syscalls --
probably via /proc/self/fd/%d/%s.  If you run timings on a losing
kernel/libc combination, you should expect a performance penalty.

Jim