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11 Commits

Author SHA1 Message Date
Tyera Eulberg e5b644e830
Add trait for saturating arithmetic (#15812) 
* Add SaturatingArithmetic trait

* Use Duration saturating arithmetic

* Use new macro to fix poh_config
 2021-03-12 06:22:40 +00:00
Tyera Eulberg e3e8179f2d
Sdk: start to appease clippy's integer arithmetic check (#15736) 
* Move to module-level clippy allowance

* Fix stake_weighted_timestamp math

* Fix genesis_config

* Fix shred_version

* Fix hard_forks

* Fix process_instruction

* Add ArithmeticOverflow ix error

* Fix nonce_keyed_account

* Update BankSlotDelta frozen abi due to new ix error
 2021-03-08 18:37:57 -07:00
Tyera Eulberg da6753b8c0
Warp timestamp and extend max-allowable-drift for accommodate slow blocks (#15204) 
* Remove timestamp_correction feature gating

* Remove timestamp_bounding feature gating

* Remove unused deprecated ledger code

* Remove unused deprecated unbounded-timestamp code

* Enable independent adjustment of fast/slow timestamp bounding

* Update timestamp bounds to 25% fast, 80% slow; warp timestamp

* Update bank hash test

* Add PR number to feature

Co-authored-by: Michael Vines <mvines@gmail.com>

Co-authored-by: Michael Vines <mvines@gmail.com>
 2021-02-09 15:49:00 -07:00
Tyera Eulberg b0e6e29527
Update timestamp max allowable drift to 50% of PoH (#14531) 
* Repurpose warp-timestamp feature for general bump

* Change max_allowable_drift to 50%

* Fill in PR#

* Fix rpc test setup
 2021-01-11 23:27:30 +00:00
behzad nouri 7b08cb1f0d
improves performance in replay-stage (#14217) 
bank::vote_accounts returns a hash-map which is slow to iterate, but all uses
only require an iterator:
https://github.com/solana-labs/solana/blob/b3dc98856/runtime/src/bank.rs#L4300-L4306
Similarly, calculate_stake_weighted_timestamp takes a hash-map whereas it only
requires an iterator:
https://github.com/solana-labs/solana/blob/b3dc98856/sdk/src/stake_weighted_timestamp.rs#L21-L28
 2020-12-21 19:18:19 +00:00
behzad nouri e1793e5a13
caches vote-state de-serialized from vote accounts (#13795) 
Gossip and other places repeatedly de-serialize vote-state stored in
vote accounts. Ideally the first de-serialization should cache the
result.

This commit adds new VoteAccount type which lazily de-serializes
VoteState from Account data and caches the result internally.

Serialize and Deserialize traits are manually implemented to match
existing code. So, despite changes to frozen_abi, this commit should be
backward compatible.
 2020-11-30 17:18:33 +00:00
Tyera Eulberg 4260b3b416 Sample votes from ancestors back to root 2020-10-31 21:30:42 -07:00
Tyera Eulberg 90778615f6 Use bounded timestamp-correction when feature enabled 2020-10-31 21:30:42 -07:00
Tyera Eulberg 80db6c0980 Add bounded timestamp-estimation method 2020-10-31 21:30:42 -07:00
Michael Vines 7bc073defe Run `codemod --extensions rs Pubkey::new_rand solana_sdk::pubkey::new_rand` 2020-10-21 19:08:13 -07:00
Tyera Eulberg b028c47d2b
Correct Bank timestamp drift every slot (#12737) 
* Move timestamp helper to sdk

* Add Bank method for getting timestamp estimate

* Return sysvar info from Bank::clock

* Add feature-gated timestamp correction

* Rename unix_timestamp method to be more descriptive

* Review comments

* Add timestamp metric
 2020-10-09 21:53:41 +00:00