Over the past 12-18 months, we have been recording data from the DSCR to investigate power consumption and CPU-usage. The data is summarized in the attached PDF and the linked slide-deck.
- Tech Report - Duke_IDF_techrpt.pdf
- Slides - SF10_INTS001_100.pdf (originals available through http://www.intel.com/go/idfsessions/)
- Note that this data was presented at the Intel Developer Forum in September 2010, hence the attachment includes slides include text from Gregg Wyant, Intel IT CTO and GM.
- Intel has posted the sync'd audio and slides for the talk: http://intelstudios.edgesuite.net/idf/2010/sf/aep/INTS001/INTS001.html
Figure 1 - Comparative Data
All of the raw data combined. Each line connects the average power reading found within a 1% CPU-usage bin.
Figure 2 - 2007 to 2008
Conversion from 1U to blade, X-series CPU to E-series, X5355 to E5420:
Figure 3 - 2008 to 2009
E5420 to E5520 (all blades)
Figure 4 - 2009, E-Series to X-Series CPUs
E5520 to X5550 (all blades)
Figure 5 - 2009 to 2010
2009 to 2010, X5550 to X5650 (all blades)
Raw Data Plots
Points shown in the following plots are averaged over a 1% bin in CPU-usage. The trend-line is the true regression line (not calculated off of the binned data). Lower plot is number of samples in each 1% bin.