Commit 6996a91a authored by Zhang, Chen's avatar Zhang, Chen
Browse files

disable memmap as requested

parent 389cd087

src/imars3d/backend/dataio/data.py

+11 −1
Original line number Diff line number Diff line
@@ -296,7 +296,17 @@ def _load_images(filelist: List[str], desc: str, max_workers: int, tqdm_class) - 
    file_ext = Path(filelist[0]).suffix.lower()

    if file_ext in (".tif", ".tiff"):

        # use tifffile directly for a faster loading

        reader = partial(tifffile.imread, out="memmap")

        # NOTE: Test conducted on 09-05-2024 on bl10-analysis1 shows that using

        #       memmap is faster, which contradicts the observation from the instrument

        #       team.

        #                       | Method | Time (s) |

        #                       |--------|----------|

        #                       | `imread(out="memmap")` | 2.62 s ± 24.6 ms |

        #                       | `imread()` | 3.59 s ± 13.6 ms |

        #       The `memmap` option is removed until we have a better understanding of the

        #       discrepancy.

        # reader = partial(tifffile.imread, out="memmap")

        reader = tifffile.imread

    elif file_ext == ".fits":

        reader = dxchange.read_fits

    else: