空洞文件（Sparse File）是一种在磁盘上并非完全分配存储空间的文件。它包含了一些逻辑上存在但物理上并未存储的数据。 空洞文件在多线程共同操作文件时具有极大的优势。当创建一个巨大的文件时，单个线程逐步构建文件会耗费大量时间。一种优化思路是将 ...

Here at TidBITS, we like to think that we face adversity so you don’t have to. We use our Macs all day long, sometimes even in the evenings, looking for ways to shoulder your karmic burden of computer ...

Ok, this is one for the real MacOS experts. What I want to do is reclaim unused disk blocks from an SQLite file and free those so they can be used for something else. sqlite_sparse on Github does ...

Hi, while using overnet (and I suppose other programs), 'sparse' files are created, which have big parts of them empty (zeroes).<BR><BR>I use the following small ...