Commit Graph

5 Commits

Author SHA1 Message Date
andri lim 56215ed83f
Bump stint to v2.0: new array backend (#1747)
* Bump stint to v2.0: new array backend
2023-09-13 09:32:38 +07:00
jangko 94a94c5b65 implement better hardfork management 2022-12-02 13:51:42 +07:00
Jordan Hrycaj ed0e882387
Exported blobs and some scripts to parallel project nimbus-eth1-blobs (#995)
why:
  TDD data and test script that are not needed for CI are externally held.
  This saves space.

also:
  Added support for test-custom_networks.nim to run import Devnet5 dump.
2022-03-16 09:13:17 +00:00
Jordan Hrycaj 261c0b51a7
Redesign of BaseVMState descriptor (#923)
* Redesign of BaseVMState descriptor

why:
  BaseVMState provides an environment for executing transactions. The
  current descriptor also provides data that cannot generally be known
  within the execution environment, e.g. the total gasUsed which is
  available not before after all transactions have finished.

  Also, the BaseVMState constructor has been replaced by a constructor
  that does not need pre-initialised input of the account database.

also:
  Previous constructor and some fields are provided with a deprecated
  annotation (producing a lot of noise.)

* Replace legacy directives in production sources

* Replace legacy directives in unit test sources

* fix CI (missing premix update)

* Remove legacy directives

* chase CI problem

* rebased

* Re-introduce 'AccountsCache' constructor optimisation for 'BaseVmState' re-initialisation

why:
  Constructing a new 'AccountsCache' descriptor can be avoided sometimes
  when the current state root is properly positioned already. Such a
  feature existed already as the update function 'initStateDB()' for the
  'BaseChanDB' where the accounts cache was linked into this desctiptor.

  The function 'initStateDB()' was removed and re-implemented into the
  'BaseVmState' constructor without optimisation. The old version was of
  restricted use as a wrong accounts cache state would unconditionally
  throw an exception rather than conceptually ask for a remedy.

  The optimised 'BaseVmState' re-initialisation has been implemented for
  the 'persistBlocks()' function.

also:
  moved some test helpers to 'test/replay' folder

* Remove unused & undocumented fields from Chain descriptor

why:
  Reduces attack surface in general & improves reading the code.
2022-01-18 16:19:32 +00:00
Jordan Hrycaj 55f7a4425f
Jordan/pow cache management (#888)
* PoW wrapper for verification & mining

why:
  It eases data management of per-Epoch lookup tables. Also some unit
  tests show limits of usefulness on non-specialised machines for
  mining besides developing tests.

details:
  For PoW verification, this patch provides a pretty wrapper hiding the
  details of the ethash/Hashimoto lookup cache management.

  For mining on my development system without special hardware, the
  underlying ethash functions are prohibitively slow. It takes
   * ~20 minutes to prepare the full ethash/Hashimoto lookup dataset
   * a second to run ~25k nonce tests (in the mining loop)

  The mining part might be of some use for generating test data for
  the tx-pool, though.

* Using PowRef as replacement for EpochHashCache + hashimotoLight()

* Fix typo (CI failed)

why:
  was below log level when testing locally

* fix canonical naming
2021-12-10 08:49:57 +00:00