1. CS 585 Summer 2002 By Robert Moncrief II
IBM RS/6000
CS 585
Summer 2002 By
Robert Moncrief II

2. POWER Architecture POWER First Introduced by IBM in 1990
Performance Optimized With Enhanced RISC
First Introduced by IBM in 1990
Started with Micro Channel Architecture
Now uses Peripheral Component Interface

5. Cycles for Operations

6. L1 virtual cache addressing

7. Figure 1. AIX 4.3 Virtual Address Space Layout
Size
64-bit Address Space
32-bit Address Space
1 Million TB X Above 4 GB
64,000 TB
Program stack
N/A
384,000 TB
Reserved
Shared library text & data
Privately loaded programs
Shared objects (default)
Program text & data
Below 4GB (Segment #) 15
256 MB
Shared library data 14
Available to application 13
Shared library information
Shared library text
3-12
2.56 GB 2
Program data & stack 1
Program text
Kernel

8. Interesting Facts Can be big-endian and little-endian Scalable
Improvements

9. Any Questions?
IBM was not very helpful