[MERGE] knit performance improvements
mbp at sourcefrog.net
Mon Apr 3 08:00:29 BST 2006
On 3 Apr 2006, Robert Collins <robertc at robertcollins.net> wrote:
> This patch makes knits more performant in a number of ways.
> It contains:
> * A tweak to missing that I commited in here by mistake which defers
> taking write locks unless needed.
> (I'll update that to not conflict with Aarons patch if his has been
> * Various microoptimisations to knit and gzip - reducing function call
> counts in inner loops, reducing double-handling of data, increasing
> knit header parsing performance, removing 'list.index' calls
> completely etc.
> * changes the data format of knits to remove an extraneous \n in the
> compressed content data, which lets it be trivially pulled into
> memory in a single 'readlines()' call.
Does this mean it's incompatible with any existing knits people might
have? (It's ok if it is since it's still experimental -- I just
wanted to check.)
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