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USER time

The USER time is the time spent in CLASS and Gildas code in general. CLASS developpers can act on this time by improving the algorithms.

Figure: SYSTEM and USER times for the three CLASS output files type: NEW (old type), SINGLE and MULTIPLE (new type). Numbers indicate the number of channels per spectrum. Dashed lines are power law functions ( $y \propto
x^\alpha$) with their exponent.

Fig. [*] displays the USER time as a function of the number of spectra written, for several number of channels per spectrum and for all the possible file types. We can observe that:

Figure: USER time for two CLASS output files type, but with time vs number of channels per spectrum. Left: keyword NEW (old type), right: SINGLE (new type). Numbers indicate the number of spectra written, and the dashed lines a linear increase of the time with the number of channels per spectrum.

Fig. [*] shows the same USER time values, but the number of channels per spectrum is now used as X-axis, for different number of spectra written. We can confirm that:


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Gildas manager 2023-06-01