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The Fastcode Project

Power Challenge

The objective is to build the fastest replacement for RTL Power.

Rules

Because the RTL Power function relies on the FPU control word beeing default so can all functions.

Validation and Benchmark Tool
Tables of results

Extended

Target Function Author Speed up over RTL
P4 Northwood PowerDKCIA32Ext_5 Dennis Christensen 1,47
P4 Prescott PowerDKCIA32Ext_5 Dennis Christensen 1,24
Pentium M PowerJOH John O'Harrow 1,39
P3 PowerDKCIA32_2 Dennis Christensen 1,42
Athlon XP PowerDKCIA32Ext_5 Dennis Christensen 1,51
Opteron PowerDKCIA32_3 Dennis Christensen 1,43
RTL Suggestion PowerJOH John O'Harrow 1,39
Pascal PowerDKCPas4 Dennis Christensen 1,13
Blended PowerDKCIA32Ext_5 Dennis Christensen 1,41

Double

Target Function Author Speed up over RTL
P4 Northwood PowerDKCSSE2_2 Dennis Christensen 1,38
P4 Prescott PowerDKCSSE2_1 Dennis Christensen 1,14
Pentium M PowerJOH John O'Harrow 1,40
P3 PowerDKCIA32_2 Dennis Christensen 1,40
Athlon XP PowerDKCIA32Ext_4 Dennis Christensen 1,70
Opteron PowerDKCSSE2_2 Dennis Christensen 1,43
RTL Suggestion PowerDKCIA32_2 Dennis Christensen 1,58
Pascal PowerDKCPas4 Dennis Christensen 1,36
Blended PowerDKCIA32Ext_5 Dennis Christensen 1,38

Single

Target Function Author Speed up over RTL
P4 Northwood PowerDKCSSE_2 Dennis Christensen 1,69
P4 Prescott PowerDKCSSE_2 Dennis Christensen 1,37
Pentium M PowerJOH John O'Harrow 1,61
P3 PowerDKCSSE_2 Dennis Christensen 1,55
Athlon XP PowerDKCIA32Ext_5 Dennis Christensen 1,88
Opteron PowerDKCSSE_2 Dennis Christensen 1,74
RTL Suggestion PowerJOH John O'Harrow 1,55
Pascal PowerDKCPas4 Dennis Christensen 1,22
Blended PowerDKCIA32Ext_5 Dennis Christensen 1,57