This pull request ports some changes from the main state snapshot
integration one, specifically introducing the flat state tracking in
pathdb.
Note, the tracked flat state changes are only held in memory and won't
be persisted in the disk. Meanwhile, the correspoding state retrieval in
persistent state is also not supported yet. The states management in
disk is more complicated and will be implemented in a separate pull
request.
Part 1: https://github.com/ethereum/go-ethereum/pull/30752
This PR fixes some issues with benchmarks
- [x] Removes log output from a log-test
- [x] Avoids a `nil`-defer in `triedb/pathdb`
- [x] Fixes some crashes re tracers
- [x] Refactors a very resource-expensive benchmark for blobpol.
**NOTE**: this rewrite touches live production code (a little bit), as
it makes the validator-function used by the blobpool configurable.
- [x] Switch some benches over to use pebble over leveldb
- [x] reduce mem overhead in the setup-phase of some tests
- [x] Marks some tests with a long setup-phase to be skipped if `-short`
is specified (where long is on the order of tens of seconds). Ideally,
in my opinion, one should be able to run with `-benchtime 10ms -short`
and sanity-check all tests very quickly.
- [x] Drops some metrics-bechmark which times the speed of `copy`.
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Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>