[bf1942] Linux server status update 2003-04-28

[Casey Zacek]

If I understand Andreas's implementation ideas correctly, it'd have
nothing really to do with Linux's aggressive caching, but rather
internal buffering by the compression routines.  You can't compress
text (very well) one character at a time, so the compression routines
would generally suck in several lines of text and compress them until
the point that its output buffer fills, at which point the output
buffer would be flushed to disk.  Once that buffer gets flushed, Linux
is free to cache it (and it will!), until the output stream is closed
(and thus automatically flushed to disk, one would hope).

So, the answer to the question of "where are the logs stored before
being compressed?" is "in the compression routine's buffers" because
it's not a situation of "write to logfile.  compress logfile." but
rather "write (compressed) to compressed logfile."

Patrick Gavin wrote (at Tue, Apr 29, 2003 at 10:39:03AM -0700):
> Linux is notorious for aggressive file system caching, so most likely 
> in memory unless you do an fflush call.
> 
> On Tuesday, April 29, 2003, at 10:31 AM, Andrew Chen wrote:
> 
> >Where are the logs stored before they're compressed?  As in, while 
> >they're still being written to, but not yet closed.  In memory?  On 
> >disk?
> >
> >At 02:29 AM 4/29/2003, you wrote:
> >
> >>Hi,
> >>
> >>it is compressed and written to disk as the compressor flushes
> >>out a block so in its compressed form it isn't useful for
> >>realtime monitoring. The files are closed on map rotations.
> >>
> >>I'm thinking about making the compression optional, but it
> >>really is needed because the log files easily reach several
> >>megabytes of size for a single round without compression.
> >>
> >>Regards,
> >>Andreas
> >>
> >>> -----Original Message-----
> >>> From: --=*dD*|Campino=-- [mailto:campino at divine-devils.de]
> >>> Sent: Tuesday, April 29, 2003 10:30 AM
> >>> To: Fredriksson, Andreas
> >>> Subject: Re[2]: [bf1942] Linux server status update 2003-04-28
> >>>
> >>>
> >>> Hello Andreas,
> >>>
> >>> Tuesday, April 29, 2003, 10:07:54 AM, you wrote:
> >>>
> >>>
> >>> FA> Ken,
> >>>
> >>> FA> Battlefield 1942 is not Half-Life. We have tanks, fixed
> >>> weapons, airplanes,
> >>> FA> submarines
> >>> FA> jeeps, spawn points, more game modes, open terrain
> >>> gameplay. The list goes
> >>> FA> on.
> >>>
> >>> FA> The XML stats format I've developed captures all of the
> >>> gameplay events
> >>> FA> related
> >>> FA> to everything BF is about. I think people who want custom
> >>> stats will
> >>> FA> appreciate
> >>> FA> that more than they would a HL log format. :-)
> >>>
> >>> FA> // Andreas
> >>>
> >>> When will the XML-File get updated?
> >>>
> >>> Realtime or just after the end of a round/map?
> >>>
> >>>
> >>> --
> >>> Greetz,
> >>> --=*dD*|Campino=--
> >>> --------------------------------------------------------------
> >>> -------------------
> >>> Visit our homepage
> >>> http://www.divine-devils.de
> >>>
> 

-- 
-- Casey Zacek (Zippo)                  Beer for Breakfast servers
   66.111.111.66:27015 (CS multi-map)     <http://bfb.bogleg.org/>
   66.111.111.66:27016 (CS inferno/dust2/aztec/militia) Dallas, TX
   66.111.111.66:14567 (BF1942)