Hi Ingo, Ingo Schwarze <schwarze@xxxxxxx> writes: > Hi Dirk, > > Dirk Gouders wrote on Sat, Apr 08, 2023 at 09:48:13PM +0200: > >> Yes, it's very slow but close to `man -K`: >> >> find... man -K... >> >> real 107.45 real 96.34 >> user 117.06 user 70.11 >> sys 14.43 sys 26.86 >> >> [a thought later] >> >> Oh, I found something much faster: >> >> $ time -p find /usr/share/man -type f | xargs bzgrep -l RLIMIT_NOFILE >> [snip] >> >> real 24.30 >> user 32.34 >> sys 6.84 >> >> Hmm, perhaps, someone has an explanation for this? > > These are all terribly slow IMHO. > > For comparison, this happens on my OpenBSD notebook, with more than > five hundred optional software packages installed in addition to the > complete default installation: > > $ time man -k any=RLIMIT_NOFILE > dup, dup2, dup3(2) - duplicate an existing file descriptor > getrlimit, setrlimit(2) - control maximum system resource consumption > sudoers(5) - default sudo security policy plugin > 0m00.21s real 0m00.00s user 0m00.03s system Yes, this is really fast and would allow for quite interesting ways to work with manual pages. But, OpenBSD's `man -k` operates on a makewhatis(8) database and not on every single manual page or am I wrong? Regards, Dirk
