RightMark CPU Clock Utility.doc

RightMark CPU Clock Utility (RMClock) is a small GUI application designed for real-time CPU frequency, throttling and load level monitoring and on-the-fly adjustment of the CPU performance level on supported CPU models via processor's power management model-specific registers (MSRs). In automatic management mode it continuously monitors the CPU usage level and dynamically adjusts the CPU frequency, throttle and/or voltage level as needed, realizing the "Performance on Demand" concept.
 

Features

• Real-time CPU clock and CPU/OS load level determination and monitoring (with optional logging).
• Detection of virtually any form of CPU clock throttling.
• Dynamic on-demand CPU performance state (P-state) transitions via real-time adjustment of CPU multiplier (FID) and/or requested voltage level (VID).
• Dynamic on-demand CPU clock modulation via real-time transitions between CPU clock throttling levels.
• Fine-tuning of advanced CPU-specific power management settings for AMD K7, AMD K8, Intel Pentium M/Centrino platform, Intel Pentium 4/Xeon and Transmeta Crusoe/Efficeon CPU families.
• Complete support for multi-processor (SMP/HT/multicore) systems.

Supported CPU

Current release of RMClock utility implements the CPU frequency, CPU load and throttling level determination on the following processor models:

• AMD K7 (Athlon/XP/MP, Duron, Sempron) and K8 (Athlon 64/FX/X2, Opteron, Dual-Core Opteron, Sempron, Turion) family processors.
• Intel Pentium II/Celeron, Pentium III/Celeron, Pentium M/Celeron M, Pentium 4/Celeron (Northwood and Prescott cores), Pentium 4 Extreme Edition (Gallatin and Prescott cores), Xeon (Prestonia, Nocona, Cranford, Irwindale, Potomac, Paxville and Dempsey cores), Pentium D and Pentium Extreme Edition (Smithfield, Presler and Cedar Mill cores), Core Solo and Core Duo processors (Yonah core).

Dynamic P-state transitions are supported on:

• AMD Athlon 64/FX/X2, mobile Athlon 64, Opteron and Dual-Core Opteron featuring AMD Cool`n'Quiet(tm) technology.
• Mobile or Low-Power Desktop AMD Athlon XP featuring AMD PowerNow!(tm) technology.
• Intel Pentium M (all cores) featuring Enhanced Intel(R) SpeedStep(tm) technology (EIST).
• Intel Pentium 4 600 series (Prescott N0 core), Intel Xeon (Nocona, Cranford, Irwindale, Potomac, Paxville and Dempsey cores), Intel Pentium D 800/900 series, Intel Pentium Extreme Edition (Smithfield, Presler and Cedar Mill cores) featuring Enhanced Intel(R) SpeedStep(tm) technology (DBS).

NOTE: Intel(R) SpeedStep(tm) technology and the "old" vision of Enhanced Intel(R) SpeedStep(tm) technology found in mobile Pentium III-M and mobile Pentium 4 processors are not supported.

Dynamic on-demand clock modulation adjustment is supported on:

• Intel Pentium M/Celeron M (all cores), Intel Pentium 4/Pentium 4 Extreme Edition/Celeron (all cores), Intel Xeon (all cores), Intel Pentium D/Pentium Extreme Edition (all cores) featuring On-Demand Clock Modulation (ODCM).

RMClock utility will run on unsupported CPU models, however, in this case, most of its functionality will be unavailable to the user.