sample1d and spline smoothing (-Fs) a Time series don't play along

[joa-quim]

sample1d D.dat -T2025-03-05T13:26:00/2025-03-07T13:24:05/30s -Fs0.99
sample1d (gmt_support.c:1847(gmtlib_smooth_spline)): Could not reallocate memory [6.78 Gb, 910228900 items of 8 bytes]
sample1d [ERROR]: Failure in gmt_intpol near row 80!

[joa-quim]

To be more reproducible, though I don't know what to do with this guy. It's absurdly slow and memory consuming.

D = maregrams(code="casc", starttime="2025-03-05T13:26:00", days=0.5)
gmtwrite("D.dat", D)

The above has 8328 lines and I had to abort the next command because it would last forever.

sample1d D.dat -T2025-03-05T13:26:00/2025-03-06T01:26:00/30s -Fs0.99