IBM 150 User Manual

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RS/6000 43P 7043 Models 150 and 260 Handbook
SPECfp95 
SPEC component-level benchmark that measures 
floating point performance. Result is the geometric 
mean of ten tests that comprise the CFP95 
benchmark suite. All of these are written in 
FORTRAN.
SPECfp_base95 
Result of the same tests in CFP95 with a 
maximum of four compiler flags that must be used 
in all ten tests.
SPECfp_rate95
Geometric average of the ten SPEC rates from 
SPEC floating point tests (CFP95).
SPECfp_base_rate95 
Geometric average of the ten SPEC rates from the 
SPEC floating-point tests (CFP95) with the 
restrictive compiler options.
SPECweb96 
Maximum number of Hypertext Transfer Protocol 
(HTTP) operations per second achieved on the 
SPECweb96 benchmark without significant 
degradation of response time. The Web server 
software is ZEUS v1.1 from Zeus Technology Ltd.
LINPACK SP 
Single precision, n=100 results with AIX XL 
FORTRAN compiler with optimization. Units are 
megaflops (MFLOPS).
LINPACK DP 
Double precision, n=100 results with AIX XL 
FORTRAN compiler with optimization. Units are 
megaflops (MFLOPS).
LINPACK TPP 
Toward Peak Performance, n=1000 results with 
AIX XL FORTRAN compiler with optimization. 
Units are megaflops (MFLOPS). ESSL Version 
3.1.1 was used in this test.
Relative on-line transaction processing (ROLTP) is an estimate of commercial 
processing performance derived from an IBM analytical model. The model 
simulates some of the system’s operations such as CPU, cache, and 
memory. However, the model does not simulate disk or network I/O 
operations. Although general database and operating systems parameters 
are used, the model does not reflect specific databases or AIX version or 
releases. Unless otherwise indicated for a system, the model assumes the 
use of 32-bit applications. ROLTP is estimated only at the time the system is 
introduced, unless otherwise indicated for a system. An IBM RS/6000 Model 
250 is the baseline reference system and has a value of 1.0.