This is a revamp of the attestation pool that cleans up several aspects
of attestation processing as the network grows larger and block space
becomes more precious.
The aim is to better exploit the divide between attestation subnets and
aggregations by keeping the two kinds separate until it's time to either
produce a block or aggregate. This means we're no longer eagerly
combining single-vote attestations, but rather wait until the last
moment, and then try to add singles to all aggregates, including those
coming from the network.
Importantly, the branch improves on poor aggregate quality and poor
attestation packing in cases where block space is running out.
A basic greed scoring mechanism is used to select attestations for
blocks - attestations are added based on how much many new votes they
bring to the table.
* Collect single-vote attestations separately and store these until it's
time to make aggregates
* Create aggregates based on single-vote attestations
* Select _best_ aggregate rather than _first_ aggregate when on
aggregation duty
* Top up all aggregates with singles when it's time make the attestation
cut, thus improving the chances of grabbing the best aggregates out
there
* Improve aggregation test coverage
* Improve bitseq operations
* Simplify aggregate signature creation
* Make attestation cache temporary instead of storing it in attestation
pool - most of the time, blocks are not being produced, no need to keep
the data around
* Remove redundant aggregate storage that was used only for RPC
* Use tables to avoid some linear seeks when looking up attestation data
* Fix long cleanup on large slot jumps
* Avoid some pointers
* Speed up iterating all attestations for a slot (fixes#2490)
* update some v1.1.0 alpha1 to alpha2
* remove unused getDepositMessage overload and move other out of datatypes/base
* bump nim-eth2-scenarios to download v1.1.0-alpha.2 test vectors
* construct object rather than result
Since quite a lot of additional procs were now compiled as generics, this lead to compiler bugs that had
to be worked-around:
* The `Domain` type was renamed to `Eth2Domain` to avoid compilation errors
due to conflicts with `nativesockets.Domain`.
Similarly, `eth2_network.KeyPair` was renamed to `NetKeyPair`.
* A new more robust version of `hexToByteArray` was added to stew
This commit introduces `unittest2`, driven by the need to fix several
long-standing issues with `unittest`, in particular exception handling,
test isolation, timing and others.
Upgrading to `unittest2` generally requires updating the unittest import
and potentially fixing the code to support the new `one-proc-per-test`
setup.
* nim-unittest2 has been moved from Stefans repository to status-im -
https://github.com/status-im/nim-unittest2/pull/2 fixes some exception
handling issues and brings it in line with latest nim devel - a notable
difference to unittest is that each test is run inside a proc which
gives it a fresh stack and removes a lot of globals, meaning tests
should run under conditions more similar to "normal" code and interfere
with each other less - this is a crucial first step to improving the
testing experience in general, that stefan implemented for the
multithreading support
* the multithreading in unittest2 is optional, and disabled by default
* nim-testutils contains utilities for fuzzing, as well as other
"large:ish" features that have dependencies -
https://github.com/status-im/nim-testutils/pull/27 pulls in unittest2 so
unittest2 can be kept "low-dependency"
* nim-chronos needs the above unittest changes to test its own new,
stricter exception handling -
https://github.com/status-im/nim-chronos/pull/166 - the strictess
introduced is expected to increase with time
Jacek Sieka
cheatfate
Dmitriy Ryajov
Zahary Karadjov
tersec
nbc-bump-bot[bot]
Ștefan Talpalaru
Mamy André-Ratsimbazafy
kdeme