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New storage backend and more ... #320

merged 43 commits into from Jan 13, 2020

New storage backend and more ... #320

merged 43 commits into from Jan 13, 2020


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qianbin commented Jan 2, 2020

Improvements include but not limited to:

  • Deeply optimized state trie storage and cache, brings

    • grouped and ordered trie nodes store results in faster state trie access, at least 2X for OP_SLOAD;
    • dynamic state trie pruner saving 80% disk space occupation;
    • multi-level caches reduce 50% RAM usage under default setting, without impacting performance;
    • and much lower disk IO.
  • Log db upgrade

    • newly designed table schemas compact db size to about 40% of previous.
    • optimized indexes extremely speed up most common queries.
  • Simplify block-chain store, by introducing the concept Repository, which is the container of chains.

  • Improve state error handling.

qianbin added 30 commits Dec 6, 2019
to allow advanced external caching
- introduce Repository to replace original Chain
- change Chain's definition, now Chain is more like a branch
- introduce index trie to replace ancestor trie
- remove Seeker and Fork components
- optmized data persistence
- expose state error in bultin contracts
- for native binding, panic on state error
- add ref table to map id <-> data which significantly reduces disk space useage
- optmize indexes to cover most cases
- remove time range query options
- add log Writer
@qianbin qianbin requested review from libotony and laalaguer and removed request for libotony and laalaguer Jan 4, 2020
@qianbin qianbin force-pushed the qianbin:muxdb branch 6 times, most recently from 8b5c209 to 2bfa1cc Jan 6, 2020
@qianbin qianbin force-pushed the qianbin:muxdb branch from 2bfa1cc to 2ee822e Jan 6, 2020
qianbin and others added 2 commits Jan 7, 2020
…oposerEndorsement could be set zero
@qianbin qianbin changed the base branch from master to code-is-entropy Jan 10, 2020
libotony and others added 3 commits Jan 10, 2020
- add option DisablePageCache
- expose more option fields
- add Trie.CommitPermanently method
- add some comments
@qianbin qianbin force-pushed the qianbin:muxdb branch from c7a7e1b to bea1f02 Jan 13, 2020
@qianbin qianbin merged commit 3e46954 into vechain:code-is-entropy Jan 13, 2020
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