Avoid materializing entire time vector from zarr for time_to_sample_index#4620
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alejoe91 merged 2 commits intoJul 14, 2026
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…ndex `np.searchsorted` is fine for mem-maps, but for out-of-core arrays (zarr) it reads the whole time vector (even if a `zarr.Array`) into memory. Bisecting instead reads O(log N) elements, which saves an order of magnitude of RAM for long recordings. """
grahamfindlay
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Stumbled upon the same issue yesterday!! Elegant solution :) |
alejoe91
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@alejoe91 Pretty sure this is hitting #4601 too. Both safe to merge. I can work on a PR to fix the test. |
alejoe91
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Jul 14, 2026
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np.searchsortedis fine for mem-maps, but for out-of-core arrays (zarr) it reads the whole time vector (even if azarr.Array) into memory. Bisecting instead reads O(log N) elements, which saves an order of magnitude of RAM for long recordings.