On 4/21/07, Marco Costalba <mcostalba@xxxxxxxxx> wrote:
On 4/21/07, Jon Smirl <jonsmirl@xxxxxxxxx> wrote: > On 4/21/07, Marco Costalba <mcostalba@xxxxxxxxx> wrote: > > Well, why to store always the full length SHA? > > When Shawn gets done with full compression the SHAs would get stored > in the packfile once and then be replaced with a token generated from > the compression algorithm. Compression tokens are designed to use the > minimal number of bits depending on frequency of occurrence. > Currently in Lunux tree there are about 445.424 objects (git count-objects -v), if each object has his 40 bytes name it is about 20MB to store sha *once*, probably with no real disambiguate need to be that much.
You have to store the full SHAs at least once since they are the signature against data corruption.
Marco
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