Prototypes » History » Revision 19
Revision 18 (Greg Burri, 01/19/2009 11:47 AM) → Revision 19/49 (Greg Burri, 01/22/2009 04:33 PM)
h1. 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. # 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 for an Intel 1.8 GHz Core2 CPU. # Reading and writing files with UTF8 characters in theirs filename. Must be tested for the three platforms : Linux, Windows and MacOSX. # Searching into a large set of files and directories. Measure the average time for about 50'000 files. # Observing the modifications of the files structure to hash new added files and remove hash from the cache when a file is deleted. # Efficient Searching into a large set of files and directories. Measure the file transfer over TCP/IP with Haskell. It includes reading, streaming and writing. Comparisons with SMB and NFS. average time for about 50'000 files. # Multicast UDP. # Serializing and exchanging message with _Protocol Buffers_ in Haskell. see http://hackage.haskell.org/cgi-bin/hackage-scripts/package/protocol-buffers. # Reading and writing files with UTF8 characters in theirs filename. Must be tested for the three platforms : Linux, Windows and MacOSX. # Defining and testing the concurrent model. # Reading and writing the same file from different threads. # Efficient of the file transfer over TCP/IP with Haskell. It includes reading, streaming and writing. Comparisons with SMB and NFS.