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[R4R]use more aggressive write cache policy #227

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merged 2 commits into from
May 24, 2021
Merged

[R4R]use more aggressive write cache policy #227

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1f3e060
use more aggressive write cache policy
unclezoro May 17, 2021
571a317
fix ungraceful shutdown issue
unclezoro May 19, 2021
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2 changes: 1 addition & 1 deletion consensus/parlia/parlia.go
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Original file line number Diff line number Diff line change
Expand Up @@ -868,7 +868,7 @@ func (p *Parlia) EnoughDistance(chain consensus.ChainReader, header *types.Heade
if err != nil {
return true
}
return snap.enoughDistance(p.val)
return snap.enoughDistance(p.val, header)
}

// CalcDifficulty is the difficulty adjustment algorithm. It returns the difficulty
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12 changes: 9 additions & 3 deletions consensus/parlia/snapshot.go
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Expand Up @@ -244,17 +244,23 @@ func (s *Snapshot) inturn(validator common.Address) bool {
return validators[offset] == validator
}

func (s *Snapshot) enoughDistance(validator common.Address) bool {
func (s *Snapshot) enoughDistance(validator common.Address, header *types.Header) bool {
idx := s.indexOfVal(validator)
if idx < 0 {
return true
}
validatorNum := int64(len(s.validators()))
if validatorNum == 1 {
return true
}
if validator == header.Coinbase {
return false
}
offset := (int64(s.Number) + 1) % int64(validatorNum)
if int64(idx) >= offset {
return int64(idx)-offset >= validatorNum/2
return int64(idx)-offset >= validatorNum-2
} else {
return validatorNum+int64(idx)-offset >= validatorNum/2
return validatorNum+int64(idx)-offset >= validatorNum-2
}
}

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