I grabbed Julian's aufs-source package from Debian Lenny, which is a little newer. Using it, I was able to successfully patch and compile and run. No change in performance. Maybe I made a mistake, I am pretty sleepy.
# cat /sys/module/aufs/version 20080714 $ time ls -U | wc -l # cached, with about 4000 files on the SSD 1394304 real 0m29.545s user 0m0.430s sys 0m28.950s ------------------------------------------------------------------------------
