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Configuration Poset for Redis

Estimated prep. time Estimated runtime
N/A 1h 00m (manual)

Overview

This plot corresponds to Figure 8 in the paper, that presents the configurations partially ordered set (poset) for the Redis performance numbers presented in Figure 6. Each node represents a configuration, and a directed edge between nodes n1 and n2 indicates that the level of safety of n1 is probabilistically superior to that of n2. The safety of nodes on the same path is comparable, while that of nodes on different paths is not. The color of a node is indicates the performance of the corresponding configuration, with black being the fastest (1209.7k req/s on our machine) and white being the slowest (264.6k req/s). The stars represnt the most secure configuration with performance > 500k req/s.

Generating the plot

As a prerequisite, you'll need to install graphviz, on Debian/Ubuntu systems:

sudo apt install graphviz

Then you can generate the graph with:

make plot

Details about the plot's data

For the sake of simplicity the graphviz plot script hardcodes data we gathered for the paper on our machine. A detailed version of the poset is available in this PDF file. It contains for each configuration its description as well as the corresponding performance. The legend explains the labelling of the configurations.

Plotting new results

In order to plot the poset for new Redis performance numbers that would be obtained through the scripts relating to Figure 6, one would need to edit in the plot script the fillcolor for each configuration, i.e. each line with a tooltip attribute identifying a configuration with the same scheme as in the detailed poset view.

The mapping of performance numbers to graphviz's hexadecimal color codes is automated in this LibreOffice spreadsheet. One will need to enter Redis' performance numbers for each configuration in the column entitled "Redis GET Throughput", and the last column on the left will automatically compute the hexadecimal value that should be set for the fillcolor attribute of the corresponding configuration in the graphviz plot script.