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Paul Hauner fa6ad1a11a Deduplicate block root computation (#3590) 
## Issue Addressed

NA

## Proposed Changes

This PR removes duplicated block root computation.

Computing the `SignedBeaconBlock::canonical_root` has become more expensive since the merge as we need to compute the merke root of each transaction inside an `ExecutionPayload`.

Computing the root for [a mainnet block](https://beaconcha.in/slot/4704236) is taking ~10ms on my i7-8700K CPU @ 3.70GHz (no sha extensions). Given that our median seen-to-imported time for blocks is presently 300-400ms, removing a few duplicated block roots (~30ms) could represent an easy 10% improvement. When we consider that the seen-to-imported times include operations *after* the block has been placed in the early attester cache, we could expect the 30ms to be more significant WRT our seen-to-attestable times.

## Additional Info

NA
2022-09-23 03:52:42 +00:00
..
src Deduplicate block root computation (#3590) 2022-09-23 03:52:42 +00:00
tests Builder Specs v0.2.0 (#3134) 2022-07-30 00:22:37 +00:00
.gitignore Update spec tests to v1.1.0-beta.4 (#2548) 2021-09-25 05:58:35 +00:00
Cargo.toml Update to Rust 1.59 and 2021 edition (#3038) 2022-02-25 00:10:17 +00:00
check_all_files_accessed.py Bump EF tests to v1.2.0 rc.3 (#3483) 2022-08-19 04:27:21 +00:00
Makefile Bump EF tests to v1.2.0 rc.3 (#3483) 2022-08-19 04:27:21 +00:00
README.md Update spec tests to v1.1.0-beta.4 (#2548) 2021-09-25 05:58:35 +00:00

README.md

Consensus Specification Tests

This crate parses and executes the test vectors at ethereum/consensus-spec-tests.

Functionality is achieved only via the $ cargo test --features ef_tests command.

Running the Tests

Because the test vectors are very large, we do not download or run them by default. To download them, run (in this directory):

$ make

Note: this may download hundreds of MB of compressed archives from the ethereum/consensus-spec-tests, which may expand into several GB of files.

If successful, you should now have the extracted tests in ./consensus-spec-tests.

Run them with:

$ cargo test --features ef_tests

The tests won't run without the ef_tests feature enabled (this is to ensure that a top-level cargo test --all won't fail on missing files).

Saving Space

When you download the tests, the downloaded archives will be kept in addition to the extracted files. You have several options for saving space:

  1. Delete the archives (make clean-archives), and keep the extracted files. Suitable for everyday use, just don't re-run make or it will redownload the archives.
  2. Delete the extracted files (make clean-test-files), and keep the archives. Suitable for CI, or temporarily saving space. If you re-run make it will extract the archives rather than redownloading them.
  3. Delete everything (make clean). Good for updating to a new version, or if you no longer wish to run the EF tests.