On Feb 24 14:42, Christian Franke wrote: > Follow up to suggestion from here: > https://sourceware.org/pipermail/cygwin/2025-February/257354.html > > Possibly too verbose :-)
Can't be verbose enough. > BTW: The MS documentation says that blocks are also not allocated if zeroes > are written (instead of skip with seek): > https://learn.microsoft.com/en-us/windows/win32/fileio/sparse-files > "When a write operation is attempted where a large amount of the data in the > buffer is zeros, the zeros are not written to the file" > > I could not reproduce this documented behavior with NTFS on Win11. I tried that too a couple of months ago and couldn't reproduce this either. I wonder if that was wishful thinking on the doc writer's part. Or maybe there's some fsutil setting, but I can't find it either... Patch pushed. Thanks, Corinna
