performance - How Fast is Windows File System for Database Operations? -

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i came across crazy thought , wanted share , ask feasibility, performance wise:

the idea manage object database operations by:

  • creating folder each class named after class name
  • creating sub-folder each sub-class named after sub-class name
  • creating file each object named after unique id
  • creating sub-folder each index named after names of indexed fields
  • creating shortcut file each index entry referring original object file
  • reading/writing binary objects fast serializer/deserializer
  • inserting/updating/deleting objects , index entries renaming object , shortcut files
  • caching/paging using memory-mapped files
  • querying utilize binary search on sorted file names

update: thank replies. thinking can improved using compression/encryption library such 7z, instead of dealing os file system. otherwise, of stated concerns far valid. i'm wondering kind of underlying file system does, example, oracle uses

cons:

  • on filesystems, 1 byte file takes full block of 4kb. can huge problem depending of kind of object wanna store in database.
  • most filesystems not designed scale directories containing millions of files.
  • complex queries require opening/reading/deserializing/closing of million of files, , slow.

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