2 processor clock rate, Would be similar to this, Chapter 2. architecture and technical overview – IBM P5 570 User Manual

Page 37

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Chapter 2. Architecture and technical overview

Figure 2-6 Logical p5-570 building blocks connection

2.2.2 Processor clock rate

The p5-570 system features base 2-way, 4-way, 8-way, 12-way, and 16-way configurations
with the POWER5 processor running at 1.5 GHz, 1.65 GHz, and 1.9 GHz. The processor
card running at 1.9 GHz is available with two feature codes to support the DDR1 and DDR2
memory technology, which require two different DIMM sockets.

To determine the processor characteristics on a running system, use one of the following
commands:

lsattr -El proc

X Where

X is the number of the processor; for example, proc0 is the first

processor in the system. The output from the command

would be

similar to this:

type powerPC_POWER5

Processor type

False

frequency 165600000

Processor Speed

False

smt_enabled true

Processor SMT enabled False

smt_threads 2

Processor SMT threads False

state enable

Processor state

False

(False, as used in this output, signifies that the value cannot be
changed through an AIX command interface.)

pmcycles -m

This command (AIX 5L Version 5.3 and later) uses the performance
monitor cycle counter and the processor real-time clock to measure
the actual processor clock speed in MHz. This is the output of a 2-way
p5-550 running at 1.65 GHz system:

Cpu 0 runs at 1656 MHz
Cpu 1 runs at 1656 MHz

pSeries

16-way

12-way

pSeries

2-, 4-way

8-way

pSeries

FC 1847

FC 1849

FC 1848

Note: Any system made of more than one processor card must have all processor cards
running at the same speed.

The output of the

lsattr

command has been expanded with AIX 5L to include the processor clock rate.

Note: The

pmcycles

command is part of the bos.pmapi fileset. First check whether that

component is installed by using the

lslpp -l bos.pmapi

command.

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