Computational time t_comp to run a fit with DIAMONDS as a function of the number of free parameters k involved in the fit. The points correspond to the calibration performed by Corsaro et al. (2018) on the star KIC 12008916 using a 2.7 GHz single-core CPU. Each point is a unimodal fit to the oscillation modes in the stellar PSD (see Sect. 3.3). The color is the number of data bins involved in each computation. The blue box represents the region where FAMED is operational when using GLOBAL and CHUNK, exploiting a low-dimensional (1 ≤ k ≤ 8), hence fast computation (1 ≲ t_comp ≲ 60 s) with D.