On Fri, Apr 26, 2013 at 1:04 AM, Thomas Rast <tr...@inf.ethz.ch> wrote:
> So we take a slightly different approach, and trade some memory for
> better cache locality.  Namely, we change the hash table slots to
> contain
>   struct object *obj;
>   unsigned long sha1prefix;
> We use this new 'sha1prefix' field to store the first part of the
> object's sha1, from which its hash table slot is computed.

Clever. I went a similar road before. But I put the whole 20-byte
sha-1 in obj_hash, which makes obj_hash even bigger and less
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