Date: Mon, 17 Dec 2001 18:18:23 -0800 (PST)
From: Patrick Powell <[EMAIL PROTECTED]>
> > From [EMAIL PROTECTED] Mon Dec 10 23:11:21 2001
> > To: [EMAIL PROTECTED]
> > Subject: Re: LPRng: checkpc speed
> > Date: Tue, 11 Dec 2001 17:22:09 +1100
> > From: "C. L. McAvaney" <[EMAIL PROTECTED]>
> >
> > G'day Patrick,
> > Further to this, I added a few more debugs and the time consuming part se
>ems
> > to be a call to To_daemon() in Check_spool_dir(). I saw from your commen
>try
> > that this function has been a bit of a headache in the past with portabil
>ity.
> > Is there anything in particular with Solaris (v8) that you know of?
>
> Ahh...
>
> int To_daemon(void)
> {
> Set_full_group( DaemonUID, DaemonGID );
> To_daemon_called = 1;
> return( seteuid_wrapper( DaemonUID ) );
> }
>
> Note that we are doing 'Set_full_group()' here...
> This little gem is used so that we set all of the user and group
> permissions to the 'correct' ones.
>
> This calls: getpwuid(euid)
> and then calls 'initgroups(user,pw->pw_gid)'
> I suspect foul play here. You could instrument this and
> see if this is the source of the problem.
hmm...I am confused as to why initgroups() is called.
It doesn't seem to be needed if setgid() is called later on.
Confused,
Christopher
>
> There are two ways to solve this:
>
> a) Violate the chastity of the permissions system and
> brutally set only the EUID.
>
> b) Find out what is slowing down 'To_daemon()' and fix it.
>
> >
> > Thanks,
> > Christopher
> >
> > ------- Forwarded Message
> >
> > Date: Tue, 11 Dec 2001 15:40:46 +1100
> > From: "C. L. McAvaney" <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED]
> > Subject: Re: LPRng: checkpc speed
> >
> >
> > Date: Mon, 10 Dec 2001 19:56:31 -0800 (PST)
> > From: Patrick Powell <[EMAIL PROTECTED]>
> >
> > > OK, then it is time for the BIG GUNS:
> > >
> > > checkpc -f -D2 2>&1 >/tmp/log
> > >
> > > and start looking... Sigh...
> >
> > hmm...I agree with the sigh.
> >
> > There is a 2 second pause between these lines:
> >
> > 2001-12-11-15:37:12.593 alfirk [18449] checkpc dalmation: Get_spool_cont
>rol:
> > file 'control.dalmation'
> > 2001-12-11-15:37:12.593 alfirk [18449] checkpc dalmation: Setup_printer:
> print
> > er now 'dalmation', spool dir '/var/spool/lpd/dalmation'
> >
> > 2001-12-11-15:37:14.721 alfirk [18449] checkpc dalmation: Scan_printer:
>file '
> > control.dalmation'
> > 2001-12-11-15:37:14.722 alfirk [18449] checkpc dalmation: Scan_printer:
>file '
> > status.dalmation'
> >
> > ...
> > Same pause for each printer.
> >
> > Christopher
> >
> > >
> > > > From [EMAIL PROTECTED] Mon Dec 3 11:20:16 2001
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: LPRng: checkpc speed
> > > > Date: Sun, 02 Dec 2001 13:24:57 +1100
> > > > From: "C. L. McAvaney" <[EMAIL PROTECTED]>
> > > >
> > > >
> > > > Date: Sat, 1 Dec 2001 10:06:06 -0800 (PST)
> > > > From: Patrick Powell <[EMAIL PROTECTED]>
> > > >
> > > > > > From [EMAIL PROTECTED] Wed Nov 28 21:09:24 2001
> > > > > > To: [EMAIL PROTECTED]
> > > > > > Subject: LPRng: checkpc speed
> > > > > > Date: Thu, 29 Nov 2001 14:45:55 +1100
> > > > > > From: "C. L. McAvaney" <[EMAIL PROTECTED]>
> > > > > >
> > > > > > G'day all,
> > > > > >
> > > > > > I am wondering if checkpc is slow for everybody?
> > > > > > I have noticed that it takes quite a long time (v3.8.1) to go
> throu
> > >gh a
> > > > > > printcap that I have here with 122 printer entries.
> > > > > > Is it doing some network connections or something like that?
> > > > > >
> > > > > No, not that I am aware of... Try running:
> > > > >
> > > > > checkpc -D1
> > > > >
> > > > > This will put out timestamps on each line... see where the
> > > > > delays (if any) are.
> > > >
> > > > The only noticable pause is:
> > > > ...
> > > > 2001-12-02-13:22:50.765 alfirk [24103] checkpc dalmation: Find_pc_
>info:
> > >found name 'dalmation'
> > > > 2001-12-02-13:22:50.765 alfirk [24103] checkpc dalmation: Select_p
>c_info
> > >: returning 'dalmation'
> > > > 2001-12-02-13:22:50.766 alfirk [24103] checkpc dalmation: Fix_Rm_R
>p_info
> > >: Printer 'dalmation', Queue 'dalmation', Lp 'lexmark-test.net.deakin.
>edu.au
> > >%9100', Rp '<NULL>', Rh '<NULL>'
> > > >
> > > > ** Between here:
> > > > 2001-12-02-13:22:50.767 alfirk [24103] checkpc dalmation: Setup_pr
>inter:
> > > printer now 'dalmation', spool dir '/var/spool/lpd/dalmation'
> > > >
> > > > ** and here.
> > > > 2001-12-02-13:23:07.415 alfirk [24103] checkpc dalmation: Make_wri
>te_fil
> > >e 'control.dalmation'
> > > >
> > > > 2001-12-02-13:23:07.415 alfirk [24103] checkpc dalmation: Make_wri
>te_fil
> > >e 'status.dalmation'
> > > > 2001-12-02-13:23:07.415 alfirk [24103] checkpc dalmation: Make_wri
>te_fil
> > >e 'status'
> > > > ...
> > > >
> > > > The same pause seems to occur for each printer.
> > > >
> > > > Christopher
> > > > ,,,
> > > > (. .)
> > > > /-----.oOO--(_)--OOo.----------------------------------------------
>---\
> > > > | Christopher McAvaney [EMAIL PROTECTED]
> |
> > > > | PhD Candidate [EMAIL PROTECTED]
> |
> > > > | [EMAIL PROTECTED]
> |
> > > > | phone: +61+3+52272960 [EMAIL PROTECTED]
> |
> > > > | fax: +61+3+52272028 http://www.cm.deakin.edu.au/~chrismc
> |
> > > > \------------------------------------------------------------------
>---/
> > >
> > >--
> > >
>
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>--
>
Christopher
,,,
(. .)
/-----.oOO--(_)--OOo.-------------------------------------------------\
| Christopher McAvaney [EMAIL PROTECTED] |
| PhD Candidate [EMAIL PROTECTED] |
| [EMAIL PROTECTED] |
| phone: +61+3+52272960 [EMAIL PROTECTED] |
| fax: +61+3+52272028 http://www.cm.deakin.edu.au/~chrismc |
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