R Dataset / Package MASS / cpus


On this R-data statistics page, you will find information about the cpus data set which pertains to Performance of Computer CPUs. The cpus data set is found in the MASS R package. You can load the cpus data set in R by issuing the following command at the console data("cpus"). This will load the data into a variable called cpus. If R says the cpus data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the cpus R data set. The size of this file is about 9,216 bytes.

Performance of Computer CPUs


A relative performance measure and characteristics of 209 CPUs.




The components are:


manufacturer and model.


cycle time in nanoseconds.


minimum main memory in kilobytes.


maximum main memory in kilobytes.


cache size in kilobytes.


minimum number of channels.


maximum number of channels.


published performance on a benchmark mix relative to an IBM 370/158-3.


estimated performance (by Ein-Dor & Feldmesser).


P. Ein-Dor and J. Feldmesser (1987) Attributes of the performance of central processing units: a relative performance prediction model. Comm. ACM. 30, 308–317.


Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.


Dataset imported from https://www.r-project.org.

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Attachment Size
dataset-84754.csv 9 KB
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0

This documentation is licensed under GPLv3 or later.