Jordan Hrycaj ce713d95fc
Aristo lazily delete larger subtrees (#2560)
* Extract sub-tree deletion functions into separate sub-modules

* Move/rename `aristo_desc.accLruSize` => `aristo_constants.ACC_LRU_SIZE`

* Lazily delete sub-trees

why:
  This gives some control of the memory used to keep the deleted vertices
  in the cached layers. For larger sub-trees, keys and vertices might be
  on the persistent backend to a large extend. This would pull an amount
  of extra information from the backend into the cached layer.

  For lazy deleting it is enough to remember sub-trees by a small set of
  (at most 16) sub-roots to be processed when storing persistent data.
  Marking the tree root deleted immediately allows to let most of the code
  base work as before.

* Comments and cosmetics

* No need to import all for `Aristo` here

* Kludge to make `chronicle` usage in sub-modules work with `fluffy`

why:
  That `fluffy` would not run with any logging in `core_deb` is a problem
  I have known for a while. Up to now, logging was only used for debugging.

  With the current `Aristo` PR, there are cases where logging might be
  wanted but this works only if `chronicles` runs without the
  `json[dynamic]` sinks.

  So this should be re-visited.

* More of a kludge
2024-08-14 08:54:44 +00:00

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Nim

# nimbus-eth1
# Copyright (c) 2023-2024 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed
# except according to those terms.
import ../aristo_constants
when DELETE_SUBTREE_VERTICES_MAX == 0:
import ./delete_subtree_now as del_sub
else:
import ./delete_subtree_lazy as del_sub
export del_sub
# End