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RS/6000 Introduction 
13
Although ROLTP may be used to compare estimated RS/6000 commercial 
processing performance, actual system performance may vary and is 
dependent upon many factors including system hardware configuration, and 
software design and configuration. All performance estimates are provided 
"AS IS" and no warranties or guarantees are expressed or implied by IBM.
1.5.2  Performance Summary
Table 1 and Table 2 provide, at time of publication, the related performance 
values.
Table 1.  SPEC and LINPACK Performance.
Table 2.  Multiuser Performance
1.6  Industry Trends and Directions
There are many emerging trends and directions in the UNIX hardware 
marketplace. Some will be determined as frivolous, and others will become 
industry standards. In this section there is a discussion of some key emerging 
technologies that may, in the opinion of the authors, become pervasive in the 
marketplace.
1.6.1  Microprocessor Future
As applications grow more complex, more processor power is required to give 
you acceptable performance. It is easy to predict the following developments 
pertaining to the growth of computing power available for the RS/6000.
  • Moore’s law will remain true. 1000 MHz processors are already running in 
the lab. More importantly, IBM’s use of copper technology and 
complementary metal oxide semiconductor (CMOS) fabrication 
Model
CPU
Clock
Rate
(MHz)
L1
(KB)
L2
(MB)
SPEC
int95
SPEC
int_
base95
SPEC
fp95
SPEC
fp_
base95
LINPACK
DP
LINPACK
SP
LINPACK
TPP
150
604e
375
32/32
1
15.1
14.5
10.1
9.85
64.8
151.2
255.7
260
POWER3
200
32/64
4
13.2
12.5
30.1
27.6
236.5
248.1
630.0
Model
CPU
Clock
Rate
(MHz)
L1
Cache
(KB)
L2
Cache
(MB)
Relative
OLTP
Perf.
SPEC
int_
rate95
SPEC
int_base
rate95
SPEC
fp_
rate95
SPEC
fp_base
rate95
150
604e
375
32/32
1
6.0
-
-
-
-
260
POWER3
(1-way)
200
32/64
4
10.5
116
111
266
243
260
POWER3
(2-way)
200
32/64
4
21.0
232
222
509
468