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.

Hard Upper Limit on Memory Latency

September 1, 2013 by • “No Bugs” Bunny

Abstract:

Speed of light imposes hard limits on possible latencies of high-volume RAM

Quote:

Even if each bit is implemented by single atom of silicon, 2^90-byte RAM is the largest RAM which can possibly have latencies comparable to modern DDR3 SDRAM.

Filed under: On.System Architecture Requirement analysis On.Programming Optimizations

Tagged With: Memory Management Kinda Physics Overload

(640K) 2^256 Bytes of Memory is More than Anyone Would Ever (Need) Get

January 1, 2013 by • “No Bugs” Bunny

Abstract:

Physics imposes hard limits on amount of memory we will get in foreseeable future.

Quote:

Even if every memory cell can be represented by a single atom, we would need 1 to 10% of all the stars and planets which we can see , to implement 2^256 bytes of memory.

Filed under: On.System Architecture Requirement analysis

Tagged With: Memory Management Kinda Physics Overload