Use custom graphsync with PR outstanding #4
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Goals
Fix receiver side unneccesary hashing
Implementation
This is a real bummer - I had an outstanding PR on go-graphsync the removes the remaining hash bottle neck (ipfs/go-graphsync#166). This PR works with that branch and several other deps that pull in that branch. It should probably not be merged as is. Instead we should pull in the pr to go-graphsync and cut a new tag and work from there.
After CPU profile:
Before CPU profile:
This gives 1s drop in time spent hashing