[PATCH 6 of 8] obsolete: exchange obsolete marker over pushkey

[Augie Fackler]

On Jun 8, 2012, at 6:25 AM, Idan Kamara wrote:

>>> 4) have you considered using a revlog as the storage model?
>> 
>> Markers are append-only, not sure revlog would help here.
> 
> So are revlogs?
> 
> Also, if I understand what evolution is doing behind the scenes,
> it's looking at the markers and builds some sort of DAG (not explicitly)
> to understand who replaced what.

We talked about this some at the recent sprint. I was talked out of this by mpm, mostly because there's no obvious history to the obsolete markers (I think).