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DO-33878/IT/LT Power benchmark

Requirements

The power consumption of the proposed equipment shall be measured according to the instructions of this document. The results of the measurements and the methodology used to obtain them shall be reported to CERN in the Technical Questionnaire (Annex A).

The power consumption of the proposed equipment shall be measured using one of the following ways:

  1. Using a high-precision power analyzer in the primary AC circuit. In particular, the power analyzer should have a maximum tolerance of 3 permille;
  2. Using another hardware and/or software method which can be equivelant to option 1.

All tests shall be performed with the required RHEL 8.7 installation.

CPU servers power consumption

The power consumption of the proposed CPU servers shall be measured according to the instructions of this document. No hardware customization(s) or option(s) shall be installed while running this measurement.

  1. As described in requirements, prepare the chosen method to measure the power consumption.
  2. Power on the fully configured enclosure and wait for its system units to boot completely. The load average as indicated by uptime should be nearly 0.
  3. Measure the Real (W) and Apparent Power (VA) and Power Factor for 20 minutes and calculate the average value. This is the idle, power consumption of the fully configured enclosure.
  4. Stress the fully configured enclosure using on each system unit the following command:
    • stress-ng --cpu 0 --vm 0 --vm-bytes 90% --hdd 0 --hdd-opts direct --hdd-bytes 90% --io 0 --timeout 40m --metrics --metrics-brief --log-file sout.log --yaml statistics.yml
  5. Wait for 10 minutes for the power consumption to stabilize.
  6. Start measuring the Real (W) and Apparent Power (VA) and Power Factor for 20 minutes.
  7. The average power consumption over that 20 minute period is the loaded power consumption of the enclosure.

Both the idle and loaded power consumption values shall be reported in the Technical Questionnaire. The output files sout.log and statistics.yml produced for each system unit shall be attached to the Bid.