In partnership with IBM we researched PostgreSQL scalability on modern Power8 servers.
That statement and the linked Russian blog white paper[1] makes it seem like a Power8 specific and Power8 is a "a massively multithreaded chip"[2]. I wonder how far off it would be to x86-64?
The article says a few lines down, "The optimization #1 appears to give huge benefit on big Intel servers as well, while optimization #2 is Power-specific. After long rounds of optimization, cleaning and testing #1 was finally committed by Andres Freund."
Also, the chart indicates that the benchmarks shown were run on Xeon chips.
Also, the chart indicates that the benchmarks shown were run on Xeon chips.