2020-03-06 09:14:27 +00:00
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Enhancement: Restore files with many zeros as sparse files
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2022-09-04 09:23:31 +00:00
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When using `restore --sparse`, the restorer may now write files containing long
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runs of zeros as sparse files (also called files with holes): the zeros are not
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actually written to disk.
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2020-03-06 09:14:27 +00:00
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How much space is saved by writing sparse files depends on the operating
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system, file system and the distribution of zeros in the file.
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2022-09-04 09:03:59 +00:00
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During backup restic still reads the whole file including sparse regions. We
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have optimized the processing speed of sparse regions.
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2020-03-06 09:14:27 +00:00
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https://github.com/restic/restic/issues/79
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2022-09-04 09:03:59 +00:00
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https://github.com/restic/restic/issues/3903
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2020-03-06 09:14:27 +00:00
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https://github.com/restic/restic/pull/2601
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2022-09-04 09:03:59 +00:00
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https://github.com/restic/restic/pull/3854
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2020-03-06 09:14:27 +00:00
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https://forum.restic.net/t/sparse-file-support/1264
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