On.System Architecture
System Architecture (and it’s subfield Software Architecture) is a discipline which is surprisingly poorly covered. In a sense, it is still more an art than a science, and usually requires somebody intimately familiar with practical systems, to tell what’s to do and what’s to avoid when building a system.
IT Hares have lots of experience in both Software Architecture and more general System Architecture, and are trying to share their knowledge (and more importantly, their feelings) about them.
MMOG. RTT, Input Lag, and How to Mitigate Them
January 25, 2016 by • “No Bugs” Bunny
Quote:
For fast-paced games, there is one big problem with the flow shown on this diagram, and the name of the problem is “latency” (a.k.a. 'input lag')
Another Quote:
No, better bandwidth doesn't necessarily mean better latency
Filed under: Book: D&D of MOGs1st beta of Vol. I-III1st beta of Vol. VII-IXOn.System ArchitectureDistributed systemsOn.ProgrammingNetwork ProgrammingOn.SecurityFraud Prevention
Read moreAsynchronous Processing for Finite State Machines/Actors: from plain event processing to Futures (with OO and Lambda Call Pyramids in between)
January 11, 2016 by • “No Bugs” Bunny
Quote:
With 'callback pyramid' it is not easy to express the concept of 'wait for more than one thing to complete' , which leads to unnecessary sequencing, adding to latencies (which may or may not be a problem for your purposes, but still a thing to keep in mind).
Another Quote:
Don't even think of converting all of your code to a so-called Continuation-Passing-Style
Filed under: Book: D&D of MOGs1st beta of Vol. I-IIIOn.System Architecture(Re)ActorsOn.ProgrammingProgramming Languages
Read moreMMOG Server-Side. Eternal Linux-vs-Windows Debate
January 4, 2016 by • “No Bugs” Bunny
Quote:
Each server is only as secure as its admin
Another Quote:
For cheaper servers, the difference between Windows and Linux can eat as much as 50% of the server rental price (though for those servers which are more or less optimal price-performance-wise observed difference was closer to 20-30%).
Filed under: Book: D&D of MOGs1st beta of Vol. I-IIIOn.System ArchitectureRequirement analysisDesign decisions
Read moreServer-Side Architecture. Front-End Servers and Client-Side Random Load Balancing
December 28, 2015 by • “No Bugs” Bunny
Quote:
[about Round-Robin DNS] one of these returned IPs can get cached by a Big Fat DNS server, and then get distributed to many thousands of clients
Another Quote:
As a rule of thumb, Front-End Servers are a Good Thing™
Filed under: Book: D&D of MOGs1st beta of Vol. I-IIIOn.System ArchitectureDistributed systems(Re)Actors
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