These results are also visualized in the following graph:Īs can be seen from the figure, the measured speeds for the fst package are very high and even top the maximum drive speed of the SSD used. Parameter Speed was calculated by dividing the in-memory size of the data frame by the measured time.
These benchmarks were performed on a laptop (i7 4710HQ GHz) with a reasonably fast SSD (M.2 Samsung SM951) using the dataset defined below.
The figure below compares the read and write performance of the fst package to various alternatives. Data frames stored in the fst format have full random access, both in column and rows. With access speeds of multiple GB/s, fst is specifically designed to unlock the potential of high speed solid state disks that can be found in most modern computers. The fst package for R provides a fast, easy and flexible way to serialize data frames.
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