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Notes

1. Optional L2 Cache

2. Reflects use of largest optional L2 cache

3. tpm with 960 MB (Statement of Direction)

AIX Version 4 was used with each of these benchmarks. IBM C Set++ for AIX

Version 3.1.2 and AIX XL FORTRAN Version 3.2.2 are the compilers used in these

tests. The preprocessors used in the tests include KAP 2.5. for FORTRAN and

KAP/C 1.4.2 from Kuck & Associates, VAST-2X.03h28 from Pacific Sierra

Research. The preprocessors were purchased separately from these vendors.

 SPECint95: Result is the geometric mean of eight tests that comprise the

CINT95 benchmark suite. All of these are written in C language.

 SPECint_base95: It is the result of the same tests in CINT95 with a maximum of

four compilers flags that must be used in all eight tests.

 SPECint_base_rate95: Geometric average of the eight SPEC rates from the

SPEC integer tests (CINT95) with the restrictive compiler options.

 SPECfp95: Result is the geometric mean of ten tests that comprise the CFP95

benchmark suite. All of these are written in FORTRAN language.

 SPECfp_base95: It is the result of the same tests in CFP95 with a maximum of

four compilers flags that must be used in all ten tests.

 SPECfp_base_rate95: Geometric average of the eight SPEC rates from the

SPEC floating-point tests (CFP95) with the restrictive compiler options.

 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)

 tpm reflects IBM's estimate of complex commercial transactions per minute.

Table 10. PCI-based RS/6000 Comparison Performance Table

Description C20 43P E20 F30

Processor PowerPC 604 604 604 604

Clock (MHz) 120 133 100 133

L2 Cache (MB) 1 ñ 0.5 0.5 0.5

SPECint95 - 4.72 3.67 4.74

SPECfp95 - 3.76 3.13 3.49

SPECint_base95 3.85 ò 4.55 3.43 4.56

SPECfp_base95 3.50 ò 3.59 3.06 3.34

LINPACK DP (MFLOPS) 22.7 ò 27.8 23.5 23.1

LINPACK TPP (MFLOPS) 62.7 ò 67.5 62.3 69.0

tpm est. (02/96) 620 ò 400 735 850 ó

Chapter 2. PCI-Based RS/6000 Server Hardware 39

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Ibm RS/6000 Bedienungsanleitung Seite 63