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* consensus/ethash: improve cache/dataset handling (#15864)Felix Lange2018-01-231-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * consensus/ethash: add maxEpoch constant * consensus/ethash: improve cache/dataset handling There are two fixes in this commit: Unmap the memory through a finalizer like the libethash wrapper did. The release logic was incorrect and freed the memory while it was being used, leading to crashes like in #14495 or #14943. Track caches and datasets using simplelru instead of reinventing LRU logic. This should make it easier to see whether it's correct. * consensus/ethash: restore 'future item' logic in lru * consensus/ethash: use mmap even in test mode This makes it possible to shorten the time taken for TestCacheFileEvict. * consensus/ethash: shuffle func calc*Size comments around * consensus/ethash: ensure future cache/dataset is in the lru cache * consensus/ethash: add issue link to the new test * consensus/ethash: fix vet * consensus/ethash: fix test * consensus: tiny issue + nitpick fixes
* cmd, consensus, eth: split ethash related config to it own (#15520)gary rong2017-11-241-1/+1
| | | | | | | | | | * cmd, consensus, eth: split ethash related config to it own * eth, consensus: minor polish * eth, consenus, console: compress pow testing config field to single one * consensus, eth: document pow mode
* consensus, eth: don't CPU mine by default during remote miningPéter Szilágyi2017-04-071-0/+3
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* core, consensus: pluggable consensus engines (#3817)Péter Szilágyi2017-04-051-0/+146
This commit adds pluggable consensus engines to go-ethereum. In short, it introduces a generic consensus interface, and refactors the entire codebase to use this interface.