June 1999
- Languages (slightly offtopic, was Text Parsing) Mark Gritter
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Travis S. Casey
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Travis Casey
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Travis S. Casey
- Languages (slightly offtopic, was Text Parsing) Jp Calderone
- Languages (slightly offtopic, was Text Parsing) Travis Casey
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Cynbe ru Taren
- Languages (slightly offtopic, was Text Parsing) Koster, Raph
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Koster, Raph
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Ben Greear
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Jon A. Lambert
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Greg Munt
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Darren Henderson
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Greg Munt
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Ola Fosheim Grøstad
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Miroslav Silovic
- Languages (slightly offtopic, was Text Parsing) Alex Oren
- Languages (slightly offtopic, was Text Parsing) Darren Henderson
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) David Bennett
- Languages (slightly offtopic, was Text Parsing) Darren Henderson
- Languages (slightly offtopic, was Text Parsing) Ross Nicoll
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Matthew Mihaly
- Languages (slightly offtopic, was Text Parsing) Koster, Raph
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Ross Nicoll
- Languages (slightly offtopic, was Text Parsing) Jon A. Lambert
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Jon A. Lambert
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Jon A. Lambert
- Languages (slightly offtopic, was Text Parsing) Greg Miller
- Languages (slightly offtopic, was Text Parsing) Koster, Raph
- Languages (slightly offtopic, was Text Parsing) Ola Fosheim Grøstad
- Languages (slightly offtopic, was Text Parsing) Ben Greear
- Languages (slightly offtopic, was Text Parsing) Chris Gray
- Languages (slightly offtopic, was Text Parsing) Caliban Tiresias Darklock
- IndustrialMUD J C Lawrence
- IndustrialMUD Greg Miller
- Combat (very long) Matthew Mihaly
- Combat (very long) Caliban Tiresias Darklock
- Combat (very long) Matthew Mihaly
- Combat (very long) Marian Griffith
- What about goal oriented interfaces? (was Text Parsing) Ola Fosheim Grøstad
- What about goal oriented interfaces? (was Text Parsing) Chris Gray
- What about goal oriented interfaces? (was Text Parsing) Ola Fosheim Grøstad
- What about goal oriented interfaces? (was Text Parsing) Matthew Mihaly
- What about goal oriented interfaces? (was Text Parsing) Chris Gray
- What about goal oriented interfaces? (was Text Parsing) Ola Fosheim Grøstad
- What about goal oriented interfaces? (was Text Parsing) Adam Wiggins
- thoughts Matthew Mihaly
- Game Economies Timothy O'Neill Dang
- Game Economies Matthew Mihaly
- Game Economies Caliban Tiresias Darklock
- Game Economies Caliban Tiresias Darklock
- Game Economies Ola Fosheim Grøstad
- Game Economies Marian Griffith
- Game Economies Ola Fosheim Grøstad
- Game Economies Marian Griffith
- Game Economies Ola Fosheim Grøstad
- Game Economies Caliban Tiresias Darklock
- Game Economies Ola Fosheim Grøstad
- Game Economies Matthew Mihaly
- Game Economies J C Lawrence
- Game Economies Timothy O'Neill Dang
- Game Economies Koster, Raph
- Game Economies J C Lawrence
- Game Economies Adam Wiggins
- Game Economies Caliban Tiresias Darklock
- Game Economies Greg Miller
- Game Economies Ross Nicoll
- Game Economies Koster, Raph
- Game Economies Ola Fosheim Grøstad
- Game Economies Jo Dillon
- Game Economies Ross Nicoll
- Game Economies Marian Griffith
- Game Economies Jo Dillon
- Game Economies Hans-Henrik Staerfeldt
- Game Economies Koster, Raph
- Game Economies Timothy O'Neill Dang
- Game Economies Marian Griffith
- Game Economies J C Lawrence
- Game Economies Timothy O'Neill Dang
- Game Economies Ola Fosheim Grøstad
- Game Economies Timothy O'Neill Dang
- Game Economies Timothy O'Neill Dang
- Game Economies Timothy O'Neill Dang
- Game Economies Caliban Tiresias Darklock
- Game Economies Jo Dillon
- Game Economies Timothy O'Neill Dang
- Game Economies Jo Dillon
- Game Economies Matthew Mihaly
- Game Economies Koster, Raph
- Game Economies J C Lawrence
- Game Economies Greg Munt
- Game Economies Matthew Mihaly
- Game Economies Jon A. Lambert
- Game Economies Shawn Halpenny
- Game Economies Brandon J. Rickman
- Game Economies Jon A. Lambert
- Game Economies Shane King
- Game Economies Caliban Tiresias Darklock
- Game Economies Matthew Mihaly
- Game Economies Koster, Raph
- Game Economies Nathan F Yospe
- Game Economies Ola Fosheim Grøstad
- Game Economies J C Lawrence
- Game Economies J C Lawrence
- Game Economies Caliban Tiresias Darklock
- Game Economies Matthew Mihaly
- Game Economies Caliban Tiresias Darklock
- Game Economies Koster, Raph
- Game Economies Brandon J. Rickman
- Game Economies Marian Griffith
- Game Economies Katrina McClelan
- Game Economies Adam Wiggins
- Game Economies Katrina McClelan
- Game Economies Albert
- Game Economies Jp Calderone
- Game Economies Laurel Fan
- Game Economies Albert
- Game Economies Charles Hughes
- Game Economies J C Lawrence
- Game Economies Matthew Mihaly
- Game Economies Mik Clarke
- Game Economies Ola Fosheim Grøstad
- Game Economies Ling
- Game Economies Ling
- Game Economies Mik Clarke
- Rooms Greg Munt
- Parsing Text Output Jon A. Lambert
- Parsing Text Output Chris Gray
- MUD-Dev request rejected Greg Miller
- Interface/Custom Clients Greg Miller
- Languages (slightly offtopic, was Text Parsing)y Mark Gritter
- Languages (slightly offtopic, was Text Parsing)y Caliban Tiresias Darklock
- Pay Muds & Free Muds - working together, or against each other? Greg Munt
- Pay Muds & Free Muds - working together, or against each other? Caliban Tiresias Darklock
- Pay Muds & Free Muds - working together, or against each other? Matthew Mihaly
- Pay Muds & Free Muds - working together, or against each other? Koster, Raph
- Pay Muds & Free Muds - working together, or against each other? Ross Nicoll
- Pay Muds & Free Muds - working together, or against each other? Richard Bartle
- Pay Muds & Free Muds - working together, or againsteach other? Caliban Tiresias Darklock
- Pay Muds & Free Muds - working together, or against each other? Christopher Allen
- Pay Muds & Free Muds - working together, or against each other? Richard Bartle
- CVS repository for ScryMUD is online at scry.wanfear.com Ben Greear
- Mihaly's Combat Greg Munt
- Mihaly's Combat Matthew Mihaly
- Looking for UML David95037@aol.com
- Looking for UML Greg Munt
- Looking for UML David95037@aol.com
- Slogans (Game Economies) Caliban Tiresias Darklock
- Slogans (Game Economies) Ola Fosheim Grøstad
- A couple Qs, and thanks Ben Greear
- Understanding and "should-ness" Matthew Mihaly
- Understanding and "should-ness" Caliban Tiresias Darklock
- Personalities J C Lawrence
- realism Matthew Mihaly
- Gender and Mud Development Nathan F Yospe
- Gender and Mud Development Greg Miller
- Gender and Mud Development Katrina McClelan
- Gender and Mud Development Jon A. Lambert
- Gender and Mud Development Matthew Mihaly
- Gender and Mud Development Jon A. Lambert
- Gender and Mud Development Caliban Tiresias Darklock
- Gender and Mud Development David Holz
- Gender and Mud Development Jon A. Lambert
- Gender and Mud Development Matthew Mihaly
- Gender and Mud Development Greg Miller
- Gender and Mud Development J C Lawrence
- Gender and Mud Development Koster, Raph
- Gender and Mud Development J C Lawrence
- Gender and Mud Development Ola Fosheim Grøstad
- Gender and Mud Development J C Lawrence
- Gender and Mud Development Koster, Raph
- Gender and Mud Development Greg Munt
- Gender and Mud Development Greg Miller
- Gender and Mud Development Ola Fosheim Grøstad
- Gender and Mud Development Marian Griffith
- Gender and Mud Development Matthew Mihaly
- Gender and Mud Development Caliban Tiresias Darklock
- Gender and Mud Development Ola Fosheim Grøstad
- Gender and Mud Development Adam Wiggins
- Gender and Mud Development Travis S. Casey
- Gender and Mud Development Marian Griffith
- Newbies (was Text Parsing) John Hopson
- Newbies (was Text Parsing) Caliban Tiresias Darklock
- Average play time? Timothy O'Neill Dang
- Average play time? Caliban Tiresias Darklock
- Average play time? Koster, Raph
- {OT} Gender and Mud Development Wendy Winkler
- AOL lawsuit (was text parsing) Koster, Raph
- Sexual archetypes claw@kanga.nu
- Systems and concepts Caliban Tiresias Darklock
- Gender and Mud Development (back on topic, some) Katrina McClelan
- Gender and Mud Development (back on topic, some) Koster, Raph
- Gender and Mud Development (back on topic, some) Greg Miller
- Gender and Mud Development (back on topic, some) J C Lawrence
- Gender and Mud Development (back on topic, some) Jon A. Lambert
- Games within Games [Was: Gender and Mud Development] Kristen Koster
- Games within Games [Was: Gender and Mud Development] Greg Miller
- Games within Games [Was: Gender and Mud Development] Kristen Koster
- Games within Games [Was: Gender and Mud Development] Jon A. Lambert
- Games within Games [Was: Gender and Mud Development] Kristen Koster
- Games within Games [Was: Gender and Mud Development] Marian Griffith
- Tactical Combat and Traps (was the gender thread) Katrina McClelan
- Game construction and a big mistake Caliban Tiresias Darklock
- Game construction and a big mistake Marc Bowden
- Game construction and a big mistake Greg Miller
- Game construction and a big mistake Matthew Mihaly
- Game construction and a big mistake Willowreed@aol.com
- Gender and Mud Development (back on topic, some) Caliban Tiresias Darklock
- Gender and Mud Development (back on topic, some) Koster, Raph
- Gender and Mud Development (back on topic, some) claw@kanga.nu
- Gender and Mud Development (back on topic, some) Marc Bowden
- Client-Server vs. Peer-to-Peer -- Implementing DIS on the Internet claw@kanga.nu
- Goals and directions (was the gender thing) Caliban Tiresias Darklock
- MUD-Dev digest, Vol 1 #93 - 27 msgs Dr. Cat
- MUD-Dev digest, Vol 1 #93 - 27 msgs Greg Miller
- MUD-Dev digest, Vol 1 #93 - 27 msgs Koster, Raph
- MUD-Dev digest, Vol 1 #93 - 27 msgs Ola Fosheim Grøstad
- Gender and Mud Development (drifting off topic again) S. Patrick Gallaty
- Laws of Online World Design (was: realism) Koster, Raph
- Game construction and a big mistake Koster, Raph
- memory and speed Matthew Mihaly
- memory and speed Adam Wiggins
- memory and speed J C Lawrence
- memory and speed J C Lawrence
- memory and speed Matthew Mihaly
- memory and speed Adam Wiggins
- memory and speed Chris Gray
[Matthew Mihaly:]
> We tripled our memory today, from 128 megs to 384 megs, but we seem to
> actually have slowed down. In fact, adding more memory has definitely
> slowed us down. Some tasks are taking nearly twice as long as before. This
> is extremely upsetting, to say the least. Anyone have any ideas?
[I've just finished going through 50 MUD-Dev messages - I'm going to put
all my performance comments here.]
Does your server code know about the extra RAM? i.e. are there parameters
you give it telling it how much it can use? If so, it may have some
code in it that increases its run-time in proportion to the amount of
stuff it has to work with. If not, then it sounds like something similar
is happening in the operating system. Is it Linux, Windows, commercial UNIX?
The normal reason to add RAM to a machine is to reduce the paging. I.e.
you are using more space than the real RAM, so the machine has to save
some of it to disk, then bring it back when its next needed - that's slow.
Adding more RAM helps there be enough space to not need to send things
to disk. If you aren't paging, its unlikely that more RAM will help.
How can you tell? On Unixes and Windows NT there are tools to tell you.
Task Manager on Windows, vmstat on many Unixes, including Linux.
Another possibility is disk I/O. Does your server have to read/write to
an on-disk database frequently? Mine does, but with good caching, it
isn't a problem. vmstat can tell you how much disk I/O you are doing.
When you machine is bagged, and you put your head beside it, can you
hear the disk continuously chittering away? If so, I'd suggest that
either paging (unlikely given the result with more RAM) or disk I/O
is costing you bigtime.
Matt, it sounds like most of your server's actual work is being done
by code written in the in-MUD language. While I agree that such an
interpreted language need not be a real bottleneck, I think that it
*can* be a bottleneck. The overhead imposed by such a language will
depend on a lot of things, such as:
- amount of type checking and conversion needed at run-time
- amount of C-code support functions available to be called
- availability of lower-level facilities for special cases
- the "level" of the language itself
Without knowing more details, its hard to say much more. Here are some
of the aspects of, and things I've done to, my interpreter to make it
faster:
- its strongly typed. Therefore very little checking is needed at
run-time, and no non-explicit conversions.
- I have a *lot* of builtin-functions (coded in C) that the
interpreted code can call on. Thus, even though my entire
scenario is written in the MUD language, when it runs, it
actually spends a lot of its time in C code.
- I identified some things that I was doing that looked expensive,
and wrote builtin-functions to do them (as generically as was
reasonable).
- I've added a byte-code compiler and machine to my system. So far
it hasn't helped the X86 version as much as it did the 68K
version, but I have more ideas to implement.
All of these issues can, I believe, account for a minimum of an order
of magnitude in the speed of the interpreted code. Possibly as high or
higher than 2 orders of magnitude. If nearly all of the action in your
MUD is being done by an interpreter at the slow end of that scale, then
that itself could be enough to cause your problems.
--
Don't design inefficiency in - it'll happen in the implementation.
Chris Gray cg@ami-cg.GraySage.Edmonton.AB.CA
http://www.GraySage.Edmonton.AB.CA/cg/ - memory and speed Miroslav Silovic
- memory and speed Caliban Tiresias Darklock
- memory and speed Mark Gritter
- memory and speed Ben Greear
- memory and speed Matthew Mihaly
- memory and speed S. Patrick Gallaty
- memory and speed Adam Wiggins
- memory and speed Brad Leach
- memory and speed Petri Virkkula
- Virtual worlds based on real world history Greg Munt
- Stockmarkets... Ola Fosheim Grøstad
- Games within Games Jesse Farinacci
- ADMIN: Posting authority J C Lawrence
- thoughts on game economies Travis S. Casey
- thoughts on game economies Caliban Tiresias Darklock
- thoughts on game economies Travis Casey
- thoughts on game economies Koster, Raph
- thoughts on game economies Travis S. Casey
- thoughts on game economies Koster, Raph
- thoughts on game economies Hans-Henrik Staerfeldt
- thoughts on game economies Jo Dillon
- thoughts on game economies Greg Miller
- thoughts on game economies Matthew Mihaly
- thoughts on game economies Greg Miller
- thoughts on game economies Matthew Mihaly
- thoughts on game economies Jeremy Music "Sterling"
- thoughts on game economies Robert Brady
- thoughts on game economies Ling
- thoughts on game economies Caliban Tiresias Darklock
- thoughts on game economies Alex Oren
- thoughts on game economies Albert
- thoughts on game economies Adam Wiggins
- thoughts on game economies Travis S. Casey
- thoughts on game economies Travis S. Casey
- memory and speed Matthew Mihaly
- memory and speed Shawn Halpenny
- Game economics Matthew Mihaly
- Game economics Nathan F Yospe
- Playing the monsters David95037@aol.com
- Playing the monsters Katrina McClelan
- Playing the monsters Caliban Tiresias Darklock
- How to debug a method taking a variable list of arguments? Ben Greear
- Twisted Reality claw@kanga.nu
- ADMIN: Searching on MUD-Dev archives claw@kanga.nu
- Object Obsolescence [ WAS: thoughts on game economies ] Shawn Halpenny
- SAR Adam Wiggins
- speed problems update Matthew Mihaly
- speed problems update Quzah [softhome]
- ADMIN: NoMail Subscriptions -- please reconfigure J C Lawrence
- Fwd: Books on Compilers Caliban Tiresias Darklock
- UM2 Greg Munt
- 3D Anarchy Adam Wiggins
- Properties of computer languages Caliban Tiresias Darklock
- Properties of computer languages Jon Leonard
- Properties of computer languages Mark Gritter
- Properties of computer languages Cynbe ru Taren
- Properties of computer languages Travis S. Casey
- Properties of computer languages David95037@aol.com
- Properties of computer languages Travis S. Casey
- Properties of computer languages Hans-Henrik Staerfeldt
- Properties of computer languages Caliban Tiresias Darklock
- Properties of computer languages Joey Hess
- Properties of computer languages Chris Gray
- Properties of computer languages David95037@aol.com
- Properties of computer languages Adam Wiggins
- Properties of computer languages Caliban Tiresias Darklock
- Properties of computer languages Mik Clarke
- Different approaches? Dani Dumitrescu
- Different approaches? Koster, Raph
- i got's a question for yall on the best way to do something.. PartyG2816@aol.com
- i got's a question for yall on the best way to do something.. Marc Hernandez
- i got's a question for yall on the best way to do something.. Jim Clark
- i got's a question for yall on the best way to do something.. PartyG2816@aol.com
- i got's a question for yall on the best way to do something.. PartyG2816@aol.com
- Game Design [Simulation] Justin Lockshaw
- MUD-Dev digest, Vol 1 #105 - 12 msgs Dr. Cat
- MUD-Dev digest, Vol 1 #105 - 12 msgs Caliban Tiresias Darklock
- MUD-Dev digest, Vol 1 #105 - 12 msgs Chris Gray
- MUD-Dev digest, Vol 1 #105 - 12 msgs Mik Clarke
- MUD-Dev digest, Vol 1 #105 - 12 msgs Hans-Henrik Staerfeldt
- A little off topic - anyone receiving multiple copies of list mail? Charles Hughes
- Role playing and Multiple Goals John Bertoglio
- Critiquing Muds Marian Griffith
- Critiquing Muds Koster, Raph
- Critiquing Muds Travis Casey
- Critiquing Muds Marian Griffith
- Critiquing Muds Travis Casey
- Critiquing Muds Caliban Tiresias Darklock
- Critiquing Muds Marian Griffith
- Critiquing Muds Jon A. Lambert
- Critiquing Muds Koster, Raph
- Critiquing Muds Matthew Mihaly
- Critiquing Muds Koster, Raph
- Critiquing Muds Damion Schubert
- Critiquing Muds Ola Fosheim Grøstad
- Critiquing Muds Michael Willey
- Critiquing Muds Jon A. Lambert
- MUD-Dev: An apology J C Lawrence