Software Tuning, Performance Optimization & Platform Monitoring
Discussion around monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform monitoring
Announcements
This community is designed for sharing of public information. Please do not share Intel or third-party confidential information here.

[PCM] pcm-power.x tool does not report the frequency bins.

Thomas_W_Intel
Employee
149 Views

hilgeman commented on the Intel PCM article:

The pcm-power.x tool does not report the frequency bins. No matter what bins I use with the -p 0 option and -a/-b/-c frequency values, the percentages always remain zero:

[root@PowerEdgeR630-BM4GS42 IntelPerformanceCounterMonitorV2.8]# ./pcm-power.x -p 0 -m -1 -- /bin/sleep 5

 Intel(r) Performance Counter Monitor V2.8 (2014-12-18 12:52:39 +0100 ID=ba39a89)

 Power Monitoring Utility
 Copyright (c) 2011-2014 Intel Corporation
Number of physical cores: 24
Number of logical cores: 24
Number of online logical cores: 24
Threads (logical cores) per physical core: 1
Num sockets: 2
Physical cores per socket: 12
Core PMU (perfmon) version: 3
Number of core PMU generic (programmable) counters: 8
Width of generic (programmable) counters: 48 bits
Number of core PMU fixed counters: 3
Width of fixed counters: 48 bits
Nominal core frequency: 2500000000 Hz
Package thermal spec power: 120 Watt; Package minimum power: 61 Watt; Package maximum power: 240 Watt;
Socket 0: 2 memory controllers detected with total number of 4 channels. 2 QPI ports detected.
Socket 1: 2 memory controllers detected with total number of 4 channels. 2 QPI ports detected.



MC counter group: -1
PCU counter group: 0
Freq bands [0/1/2]: 1200 MHz; 2000 MHz; 4000 MHz;
Update every -1.00 seconds

Executing "/bin/sleep" command:
DEBUG: caught signal to interrupt (Child exited).
Program /bin/sleep launched with PID: 61193
Program exited with status 0
----------------------------------------------------------------------------------------------
Time elapsed: 6001 ms
Called sleep function for 1000 ms
S0P0; QPIClocks: 14404115546; L0p Tx Cycles: 0.00%; L1 Cycles: 0.00%
S0P1; QPIClocks: 14404115458; L0p Tx Cycles: 0.00%; L1 Cycles: 0.00%
S0; PCUClocks: 6001705505; Freq band 0/1/2 cycles: 0.00%; 0.00%; 0.00%
S0; Consumed energy units: 3290124; Consumed Joules: 200.81; Watts: 33.46; Thermal headroom below TjMax: 56
S0; Consumed DRAM energy units: 2028732; Consumed DRAM Joules: 31.04; DRAM Watts: 5.17
S1P0; QPIClocks: 14404127778; L0p Tx Cycles: 0.00%; L1 Cycles: 0.00%
S1P1; QPIClocks: 14404127814; L0p Tx Cycles: 0.00%; L1 Cycles: 0.00%
S1; PCUClocks: 6001733045; Freq band 0/1/2 cycles: 0.00%; 0.00%; 0.00%
S1; Consumed energy units: 3441496; Consumed Joules: 210.05; Watts: 35.00; Thermal headroom below TjMax: 53
S1; Consumed DRAM energy units: 2003120; Consumed DRAM Joules: 30.65; DRAM Watts: 5.11
----------------------------------------------------------------------------------------------
Cleaning up
 Freeing up all RMIDs

regards,

-Martin

Martin,

I could reproduce this on an Intel Xeon E5 v3 processor, and we are looking into right now.

Kind regards

Thomas

0 Kudos
0 Replies
Reply