Date: Mon, 19 May 2003 16:44:50 +0300 From: Ruslan Ermilov <ru@freebsd.org> To: Andy Farkas <andyf@speednet.com.au> Cc: current@freebsd.org Subject: Re: man(1) oddity - was: HEADS UP: bzip2(1) compression for manpages... Message-ID: <20030519134450.GF28176@sunbay.com> In-Reply-To: <20030519224847.L93323-100000@hewey.af.speednet.com.au> References: <20030519124329.GC28176@sunbay.com> <20030519224847.L93323-100000@hewey.af.speednet.com.au>
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On Mon, May 19, 2003 at 10:52:30PM +1000, Andy Farkas wrote:
> On Mon, 19 May 2003, Ruslan Ermilov wrote:
> > On Mon, May 19, 2003 at 10:21:58PM +1000, Andy Farkas wrote:
> > >
> > > Please realise what I've been trying to tell you: there is a differen=
ce in
> > > the user experience when one types `man ppp` on a 4.8 box and when one
> > > types `man ppp` on a 5.1-B box. On a 4.8 box the user types `man ppp=
`,
> > > gets a message, then waits around 10 seconds for the page to display.=
On a
> > > 5.1-B box the user types `man ppp` and DOES NOT GET A MESSAGE BUT HAS=
TO
> > > WAIT 10 SECONDS before the page is displayed.
> > >
> > You got an explanation.
>=20
> I still can't understand why you don't understand me, but I will shut up
> now. I guess being a user on a slow box doesn't matter anymore.
>=20
I DO understand what you're trying to tell me, I'm just trying to
stand you corrected. ;)
Facts:
1. When catpage is not created, the message is not displayed,
purposedly, either on 4.x or 5.x, under root or non-root,
doesn't matter. The message is only displayed the first
time the catpage is created.
2. A catpage is always created for a root user.
3. A catpage (for a system manpage) is only created for a
non-root user if man(1) is setuid "man".
The facts are true for both 4.x and 5.x. If you remove
the -DSETREUID bit from src/gnu/usr.bin/man/man/Makefile
in 4.x, you won't get the message there too.
So, to brought the message back in 5.x, we'd have to re-
enable the setuid code in man(1), which we're not ready
to yet. Got it?
--
If catpages aren't created, my timings are as follows on
a 500MHz Celeron box:
$ /usr/bin/time -h man ppp >/dev/null
4,20s real 4,07s user 0,09s sys
But if I just type "man ppp", I'm presented with the first
page of output in about 1 second, so I roughly "don't have
to wait when the whole manpage gets formatted". How much
seconds does it take for some text to appear on a terminal
attached to your slow box in this case?
Cheers,
--=20
Ruslan Ermilov Sysadmin and DBA,
ru@sunbay.com Sunbay Software AG,
ru@FreeBSD.org FreeBSD committer,
+380.652.512.251 Simferopol, Ukraine
http://www.FreeBSD.org The Power To Serve
http://www.oracle.com Enabling The Information Age
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