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11 Commits

Author SHA1 Message Date
Slava Karpenko d990df909d
consensus/ethash: use 64bit indexes for the DAG generation (#21793) 
* Bit boundary fix for the DAG generation routine

* Fix unnecessary conversion warnings

Co-authored-by: Sergey Pavlov <spavlov@gmail.com>
 2020-11-11 21:13:12 +01:00
Martin Holst Swende 81ff700077
consensus/ethash: fix the percentage progress report 2020-11-09 11:56:29 +01:00
Dave McGregor 33d233d3e1
vendor, crypto, swarm: switch over to upstream sha3 package 2019-01-04 09:26:07 +02:00
Wenbiao Zheng f6206efe5b consensus: move test use only var/func to test(#17004) 2018-07-24 02:14:15 +02:00
Felix Lange 3f33a7c8ce consensus/ethash: reduce keccak hash allocations (#16857) 
Use Read instead of Sum to avoid internal allocations and
copying the state.

name                      old time/op  new time/op  delta
CacheGeneration-8          764ms ± 1%   579ms ± 1%  -24.22%  (p=0.000 n=20+17)
SmallDatasetGeneration-8  75.2ms ±12%  60.6ms ±10%  -19.37%  (p=0.000 n=20+20)
HashimotoLight-8          1.58ms ±11%  1.55ms ± 8%     ~     (p=0.322 n=20+19)
HashimotoFullSmall-8      4.90µs ± 1%  4.88µs ± 1%   -0.31%  (p=0.013 n=19+18)
 2018-06-04 10:32:32 +03:00
Péter Szilágyi 17b0e226d3
travis, build, consensus: drop support for Go 1.7 2018-02-27 18:25:56 +02:00
Felix Lange 924065e19d consensus/ethash: improve cache/dataset handling (#15864) 
* 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
 2018-01-23 12:05:30 +02:00
Ernesto del Toro 2e83c82f80 ethash: fix typo 2017-10-13 01:13:52 -04:00
S. Matthew English 061889d4ea rlp, trie, contracts, compression, consensus: improve comments (#14580) 2017-06-12 14:45:17 +02:00
Péter Szilágyi 36a800a1d2
common/bitutil, consensus/ethash: reusable bitutil package 2017-05-05 16:00:11 +03:00
Péter Szilágyi 09777952ee core, consensus: pluggable consensus engines (#3817) 
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.
 2017-04-05 00:16:29 +02:00