StakeAccount<Delegation> can only wrap a stake-state which is a
Delegation; whereas StakeAccount<()> wraps any account with stake state.
As a result, StakeAccount::<Delegation>::delegation() will return
Delegation instead of Option<Delegation>.
For backward compatibility, we can only serialize and deserialize
Stakes<Delegation>. However Bank caches Stakes<StakeAccount>. This type
mismatch incurs a conversion cost at epoch boundary when updating
EpochStakes.
This commit adds StakesEnum which allows EpochStakes to include either a
Stakes<StakeAccount> or Stakes<Delegation> and so bypass the conversion
cost between the two at the epoch boundary.
The commit makes values in stake_delegations map in Stakes struct
generic. Stakes<Delegation> is equivalent to the old code and is used
for backward compatibility in BankFieldsTo{Serialize,Deserialize}.
But banks cache Stakes<StakeAccount> which includes the entire stake
account and StakeState deserialized from account. Doing so, will remove
the need to load stake account from accounts-db when working with
stake-delegations.
The added type does sanity checks on the Account and stores deserialized
StakeState. Following commits will use this type instead of Delegation
in Stakes.
* Pass the sum of consumed compute units to cost_tracker
* cost model tracks builtins and bpf programs separately, enabling adjust block cost by actual bpf programs execution costs
* Copied nightly-only experimental `checked_add_(un)signed` implementation to sdk
* Add function to update cost tracker with execution cost adjustment
* Review suggestion - using enum instead of struct for CommitTransactionDetails
Co-authored-by: Justin Starry <justin.m.starry@gmail.com>
* review - rename variable to distinguish accumulated_consumed_units from individual compute_units_consumed
* not to use signed integer operations
* Review - using saturating_add_assign!(), and checked_*().unwrap_or()
* Review - using Ordering enum to cmp
* replace checked_ with saturating_
* review - remove unnecessary Option<>
* Review - add function to report number of non-zero units account to metrics
* Makes sure that there is only one KeyedAccount at a time.
Moves keyed_account_at_index() into create_account(), transfer_verified(), transfer() and transfer_with_seed() to do so.
* Uses transaction_context.get_key_of_account_at_index() when only the key is needed.
* Uses "!instruction_context.is_signer()" instead of ".signer_key().is_none()".
* Replaces KeyedAccount by BorrowedAccount.
* Removes unused code.
* Makes sure that there is only one KeyedAccount at a time.
Moves keyed_account_at_index() into withdraw_nonce_account() to do so.
* Replaces KeyedAccount by BorrowedAccount.
* Removes unused code.
* nonblocking send when when droping banks
* detect and report drop signal queue full/disconnect events
* comments
* use counter for reporting bank_drop_queue events
* reduce log
* use datapoint to report stats
* logging instead of reporting bank drop signal full
* fix a corner case for reporting
* fix build
1. use was_executed to correctly identify transactions requires cost adjustment;
2. add function to specifically handle executino cost adjustment without have to copy accounts
behzad nouri
Justin Starry
Tao Zhu
Jeff Washington (jwash)
dependabot[bot]
Michael Vines
HaoranYi
Jack May
Alexander Meißner
Jason Davis
Tao Zhu