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| # | |
| # cpu-technologie.R, 25 Mar 16 | |
| # | |
| # Data from: | |
| # | |
| # Andrew Danowitz and Kyle Kelley and James Mao and John P. Stevenson and Mark Horowitz | |
| # CPU DB: Recording Microprocessor History | |
| # | |
| # Example from: | |
| # Empirical Software Engineering using R | |
| # Derek M. Jones | |
| source("ESEUR_config.r") | |
| cpu=read.csv(paste0(ESEUR_dir, "benchmark/cpu-technologie.csv.xz"), as.is=TRUE) | |
| pal_col=rainbow(3) | |
| # 0.54307nm is the lattice size for Silicon atoms. | |
| # The lattice has a diamond cubic structure, so individuals atoms | |
| # are closer to each other than this. | |
| plot(jitter(cpu$year), cpu$feature_size*1000/0.54307, log="y", col=point_col, | |
| xlim=c(1980, 2015), | |
| xlab="Year", ylab="Feature size (in Silicon atoms)\n") | |