March 1998
- Describe Concept Stephen Zepp
- Describe Concept Jon A. Lambert
- Describe Concept J C Lawrence
- Describe Concept Jon A. Lambert
- Describe Concept J C Lawrence
- Describe Concept Vadim Tkachenko
- Tutorial: Let's build a Compiler! - Part XI: Lexical Scan Revisited Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XII: Miscellany Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XIII: Procedures Jon A. Lambert
- Tutorial: Let's build a Compiler! Chris Gray
- VEIL Network Protocol Brandon Gillespie
- Tutorial: Let's build a Compiler! - Part XIV: Types Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XV: Back to the Future Jon A. Lambert
- Tutorial: Let's build a Compiler! - Part XVI: Unit Construction Jon A. Lambert
- For Ling's FAQ Koster, Raph
- MUD Ratings jlsysinc.ix.netcom.com@ix.netcom.com
- Random Generation Tools Ling
- ANNOUNCE: DB Robin Carey
- THE DARKWHOLE TESTS J C Lawrence
- Magic as Metaphor J C Lawrence
- Magic as Metaphor J C Lawrence
- Magic as Metaphor Jon A. Lambert
- Magic as Metaphor J C Lawrence
- CT - A Hypothetical Session (mid 1995) J C Lawrence
- 2Cyberconf: An article J C Lawrence
- (long) AnarchyMOO Primary Log J C Lawrence
- (short) AnarchyMOO parting salute J C Lawrence
- AnarchyMOO purpose J C Lawrence
- (fwd) CODE RELEASE: [client] Spod! (Java mud client) J C Lawrence
- (fwd) CODE RELEASE: [client]: lyntin (hacker's client) 1.1b Released J C Lawrence
- DarkWhole Test #1 J C Lawrence
- DarkWhole Test #2 J C Lawrence
- DarkWhole test #3 J C Lawrence
- DarkWhole test #4 J C Lawrence
- DarkWhole test #5 J C Lawrence
- DarkWhole test Identity Crisis J C Lawrence
- The Craft of Adventure J C Lawrence
- What in THE Hell was that? Stephen Zepp
- What in THE Hell was that? Ben Greear
- What in THE Hell was that? J C Lawrence
- What in THE Hell was that? Jon A. Lambert
- (fwd) Varying Time Commitment Levels: what's an admin to do? J C Lawrence
- Hello, and a brief intro cimri
- Hello, and a brief intro Ben Greear
- (no title) Time limits? s001gmu@nova.wright.edu
- (no title) Time limits? Justin McKinnerney
- (no title) Time limits? J C Lawrence
- Speaking of Avatars Jon A. Lambert
- Speaking of Avatars Jon A. Lambert
- Speaking of Avatars J C Lawrence
- Speaking of Avatars Jon A. Lambert
- Re: Vadim Tkachenko
- META: Broken mail headers coder@ibm.net
- META: Broken mail headers Alex Oren
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Alex Oren
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Chris Gray
- META: Broken mail headers J C Lawrence
- META: Broken mail headers Caliban Tiresias Darklock
- META: Broken mail headers Chris Gray
- Turn-based MU*'s Sauron
- Balancing Addicts -> soft vs. hard enforcement cimri
- Balancing Addicts -> soft vs. hard enforcement Justin McKinnerney
- Balancing Addicts -> soft vs. hard enforcement J C Lawrence
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Ling
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Matt Chatterley
- Balancing Addicts -> soft vs. hard enforcement J C Lawrence
- Balancing Addicts -> soft vs. hard enforcement Jon A. Lambert
- Balancing Addicts -> soft vs. hard enforcement Matt Chatterley
- Balancing Addicts -> soft vs. hard enforcement Adam Wiggins
- Balancing Addicts -> soft vs. hard enforcement Joel Dillon
- SfD: Clientside Caching Nathan F Yospe
- SfD: Clientside Caching Jon A. Lambert
- SfD: Clientside Caching Nathan F Yospe
- SfD: Clientside Caching Chris Gray
- SfD: Clientside Caching Jon A. Lambert
- (subject missing) J C Lawrence
- Balancing Addicts Ling
- Balancing Addicts Richard Woolcock
- Balancing Addicts Ling
- Balancing Addicts J C Lawrence
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Niklas Elmqvist
- Transport layer (UDP vs TCP) Jon Leonard
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Jon Leonard
- Transport layer (UDP vs TCP) Ben Greear
- Transport layer (UDP vs TCP) Chris Gray
- Transport layer (UDP vs TCP) Niklas Elmqvist
- Transport layer (UDP vs TCP) Jon A. Lambert
- Transport layer (UDP vs TCP) Ben Greear
- Time Limits? Jon A. Lambert
- META: topic and thread culling (was Balancing Addicts -> soft vs. hard enforcement ) J C Lawrence
- (subject missing) J C Lawrence
- XShipWars J C Lawrence
- (fwd) INFO: [client] Chaco looking for new parent for Pueblo J C Lawrence
- SIMULATING FUTURE HISTORIES: THE NAU SOLAR SYSTEM SIMULATION & MARS SETTLEMENT J C Lawrence
- (fwd) Functional Security J C Lawrence
- (fwd) Functional Security Ling
- (fwd) Functional Security Chris Gray
- (fwd) Functional Security Matt Chatterley
- (fwd) Functional Security Miroslav Silovic
- (fwd) Functional Security Felix A. Croes
- (fwd) Functional Security J C Lawrence
- SIMULATING FUTURE HISTORIES s001gmu@nova.wright.edu
- Character development [was ] Matt Chatterley
- Character development [was ] J C Lawrence
- Character development [was ] Matt Chatterley
- Character development [was ] Travis Casey
- Character development [was ] J C Lawrence
- Character development [was ] Travis S. Casey
- Character development [was ] Marian Griffith
- Character development [was ] Travis S. Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Travis Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Travis Casey
- Character development [was ] Vadim Tkachenko
- Character development [was ] Marian Griffith
- Character development [was ] Vadim Tkachenko
- Character development [was ] Marian Griffith
- Character development [was ] s001gmu@nova.wright.edu
- Character development [was ] Marian Griffith
- Character development [was ] J C Lawrence
- Character development [was ] Cimri
- Character development [was ] J C Lawrence
- Character development [was ] s001gmu@nova.wright.edu
- Character development [was ] Caliban Tiresias Darklock
- Character development [was ] Caliban Tiresias Darklock
- Character development [was ] Vadim Tkachenko
- Character development [was ] Ben Greear
- Character development [was ] Matt Chatterley
- Character development [was ] J C Lawrence
- Character development [was ] Matt Chatterley
- Character development [was ] Travis S. Casey
- Character development [was ] J C Lawrence
- Character development [was ] Koster, Raph
- Character development [was ] J C Lawrence
- Character development [was ] Koster, Raph
- Character development [was ] Alex Bertoglio
- Character development [was ] J C Lawrence
- Character development [was ] J C Lawrence
- Character development [was ] John Bertoglio
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Chris Gray
- 3D engines for MUDs J C Lawrence
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Chris Gray
- 3D engines for MUDs Ling
- 3D engines for MUDs Koster, Raph
- 3D engines for MUDs Mike Sellers
- 3D engines for MUDs Niklas Elmqvist
- 3D engines for MUDs Koster, Raph
- 3D engines for MUDs Ling
- 3D engines for MUDs s001gmu@nova.wright.edu
- Dynamic Loading of Modules Niklas Elmqvist
- Dynamic Loading of Modules Greg Munt
- Dynamic Loading of Modules J C Lawrence
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Vadim Tkachenko
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Chris Gray
- Parlez vous NPC? Matt Chatterley
- Parlez vous NPC? Nathan F Yospe
- Parlez vous NPC? Matt Chatterley
- Dynamic Loading of Modules Niklas Elmqvist
- Dynamic Loading of Modules Chris Gray
- Dynamic Loading of Modules Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Chris Gray
[Ben Greear:]
:The two things I'm pondering now are binary flat files (one per object,
:a collection of objects?? I dunno) or a database.
A binary form has the distinct advantage that it is relatively easy to
replace a single entity in the file. With text files, variations in
formatting of things like numbers make that harder. If you need to save
more than one kind of thing in your file (fairly likely!), then you can:
- have multiple files, one per type of entity
[can be expensive in terms of file handles and space]
- reserve portions of the file for arrays of the different entities
[what happens if you overflow a portion, needing more space?]
- set up means by which varying lengths and types of things can be
interspersed in the file, and properly found and updated.
[can get complicated]
The third choice is pretty close to writing your own DB system.
:I'm a little concerned about the performance hit on a DB, as I expect
:this game server to bring a machine to it's knees anyway...
A good non-write-through cache attached to a DB layer seems to work
pretty well. Disk I/O is not really a problem on my setup, other than
when the cache gets flushed. The fix for that is to use a separate
thread to do that, so that main server processing is not delayed. You
have to be careful to write a consistent image to the disk, however,
which may require some copying of entities if the server needs to update
them while they are already marked for flushing by the separate thread.
:Also, as a java server, I don't think I can do a select on incomming
:data. I think a thread for every player is a bit much...any suggestions
:here?
I have just started into the socket programming stuff of the current Java
book I'm reading, but I just went and did some scanning. The technique
he suggests for a server is to create some fixed number of threads, and
re-use those threads throughout the lifetime of the server. He says that
some Java implementations do not garbage collect threads at all, so having
one per connection can result in an eventual crash due to lack of memory.
Ick. Given the lack of a 'select' or 'poll' method in Java, the choices
are quite limited. Double ick.
--
Chris Gray cg@ami-cg.GraySage.Edmonton.AB.CA - World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? Greg Munt
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? s001gmu@nova.wright.edu
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? Ross Nicoll
- World Persistence, flat files v/s DB v/s ?? Ross Nicoll
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? s001gmu@nova.wright.edu
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Joel Dillon
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Matt Chatterley
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Adam Wiggins
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Orion Henry
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Nathan F Yospe
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Vadim Tkachenko
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Greg Munt
- World Persistence, flat files v/s DB v/s ?? Ben Greear
- World Persistence, flat files v/s DB v/s ?? Jon A. Lambert
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- World Persistence, flat files v/s DB v/s ?? J C Lawrence
- World Persistence, flat files v/s DB v/s ?? Chris Gray
- Jukebox Vadim Tkachenko
- Another recruit for the list? Joel Dillon
- OT: Martin Keegan J C Lawrence
- Old code Joel Dillon
- Old code Michael Hohensee
- UML/Commercial v Free Muds Greg Munt
- UML/Commercial v Free Muds Nathan F Yospe
- UML/Commercial v Free Muds Jon A. Lambert
- Heightfield Terrain Rendering Paper Niklas Elmqvist
- (subject missing) J C Lawrence
- (fwd) Roleplaying J C Lawrence
- (fwd) Roleplaying s001gmu@nova.wright.edu
- (fwd) Roleplaying Katrina McClelan
- (fwd) Roleplaying Ling
- (fwd) Roleplaying J C Lawrence
- (fwd) Roleplaying Travis Casey
- Predicting future motion intelligently J C Lawrence
- META: New Mail server and ISP J C Lawrence
- (rec.games.mud.admin) Roleplaying (fwd) Nathan F Yospe
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. Jon A. Lambert
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. Chris Gray
- Persistant storage.... My current idea. Ben Greear
- Persistant storage.... My current idea. J C Lawrence
- Persistant storage.... My current idea. Ben Greear
- UML & CORBA Greg Munt
- [MUD-Dev]: smoothing J C Lawrence
- [MUD-Dev]: smoothing J C Lawrence