Mercurial > hg > evolve
changeset 2426:d72c8c1f09e2
obscache: document a possible way forward to skipping obsstore parsing
We document a possibly viable idea for updating the cache on new revs without
having to fully parse the obsstore.
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Thu, 04 May 2017 14:02:30 +0200 |
| parents | 3bb8382fc4cb |
| children | 77c184c80e3e |
| files | hgext3rd/evolve/obscache.py |
| diffstat | 1 files changed, 7 insertions(+), 0 deletions(-) [+] |
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--- a/hgext3rd/evolve/obscache.py +++ b/hgext3rd/evolve/obscache.py @@ -305,6 +305,13 @@ imagine using various optimisation (eg: another cache, network exchange, etc). + A possible approach to this is to build a set of all node used as + precursors in `obsstore._obscandidate`. If markers are not loaded yet, + we could initialize it by doing a quick scan through the obsstore data + and filling a (pre-sized) set. Doing so would be much faster than + parsing all the obsmarkers since we would access less data, not create + any object beside the nodes and not have to decode any complex data. + For now we stick to the simpler approach of paying the performance cost on new changesets. """