Creating a full "50 GB test file" is not about writing text content (that would be billions of pages), but about for testing purposes (e.g., network speed, storage limits, or application behavior).
with open(filename, "wb") as f: f.seek(size - 1) f.write(b"\0") print(f"Created filename of size os.path.getsize(filename) bytes") This writes a sparse file instantly. For fully populated data, write in chunks. #include <stdio.h> #include <stdlib.h> int main() FILE *f = fopen("testfile_50GB.bin", "wb"); fseek(f, 53687091200L - 1, SEEK_SET); fputc(0, f); fclose(f); return 0; 50 gb test file
fsutil file createnew D:\testfile_50GB.bin 53687091200 50 GB = 50 × 1024³ bytes = Or use PowerShell: Creating a full "50 GB test file" is