Why is adding files so slow?

When you add files to the storage, you can experience a significant slowdown. This happens when you add a large file to the newly created and resized storage. The cause of the slowdown is that CBFS Storage adds new pages as you write the data. When the new pages are added, the storage itself is expanded (this takes time) and also certain other file system management operations are performed. The smaller the page size, the more significant the slowdown is.

The solutions are the following:

  • Use a fixed-sized storage.
  • Use the DiskSize property to prepare the storage for writing a large file. Reserve space for the file size + 10% (approximately).

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