Project

General

Profile

Actions

Prototypes » History » Revision 12

« Previous | Revision 12/49 (diff) | Next »
Greg Burri, 12/12/2008 12:08 PM


Prototypes

Prototypes are locate in the '/prototypes' directory in the repository. The goal is to write some code to try to resolve a particular problem which we don't know exactly how to solve.

  1. Creating SHA-1 hash for each part of a file. See Libraries for the list of SHA-1 lib. We must find the quickest library. The reference in term of speed is sha1sum from the openssl package. The speed is approximately 150Mo/s for a cached file.
  2. Observing the modifications of the files structure to hash new added files and remove hash from the cache when a file is deleted.
  3. Multicast UDP.
  4. Protocol Buffers with Haskell. see http://hackage.haskell.org/cgi-bin/hackage-scripts/package/protocol-buffers.
  5. Reading of filename with UTF8 characters.
  6. Reading and writing the same file from different threads.
  7. Efficient of the file transfer over TCP/IP with Haskell. It includes reading, streaming and writing. Comparisons with SMB and NFS.

Updated by Greg Burri about 15 years ago · 12 revisions