[Slackbuilds-users] always run `mandb -c` after installing/removing manpages?

[Jim]

On Mon, Aug 12, 2024 at 17:55 (+0200), Arkadiusz Drabczyk wrote:

> On Mon, Aug 12, 2024 at 09:12:33AM -0300, Jim wrote:
>> On Mon, Aug 12, 2024 at 05:30 (-0400), B. Watson wrote:

>>> On Mon, 12 Aug 2024, Arkadiusz Drabczyk wrote:

>>>> I ran it as root of course, it wouldn't work on /usr/man/man1 if I
>>>> didn't since it is writable only by root.

>>> I meant, are you sure when you timed it and got 10 seconds, that you
>>> were actually using the -c option? I get pretty close to 10 seconds
>>> when I time it *without* -c. If you really get "mandb -c" to run in
>>> only 10 seconds, that's 60x as fast as it does for me, and I want to
>>> know how (so I can make it run that fast for me, too).

>> Just as another data point, on a laptop running S64-15.0 with a Ryzen 4700U
>> and a Samsung MZVLB1T0HBLR-000H1 "disk", running
>> time mandb -c
>> I got
>> mandb -c  253.46s user 397.39s system 134% cpu 8:02.15 total

>> So yeah, 10 seconds would be pretty impressive.

> It must be due to
> https://gitlab.com/man-db/man-db/-/blob/1e5462f3fd9bfd8cf496e32e23842018b67f9b91/NEWS.md#L233. It
> takes 10 seconds on -current with mandb 2.12.1 but it indeed took 6
> minutes on -stable in the VirtulBox with mandb 2.9.4. After I compiled
> it from source it took 20 seconds on -stable too.

Sweet!  I love it when people find huge optimizations for commonly-used
programs like this.

Thanks for clearing up the "10 second vs. 10 minutes" mystery.

                                Jim