blockworks-foundation
/
solana
mirror of https://github.com/blockworks-foundation/solana.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

- make cost_tracker a member of bank, remove shared instance from TPU; (#20627) 

- decouple cost_model from cost_tracker; allowing one cost_model
  instance being shared within a validator;
- update cost_model api to calculate_cost(&self...)->transaction_cost
This commit is contained in:
Tao Zhu 2021-10-19 14:37:33 -05:00 committed by GitHub
parent 27d1850c3d
commit 7496b5784b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 152 additions and 296 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
banking-bench/src/main.rs
View File

@ -16,7 +16,7 @@ use solana_perf::packet::to_packets_chunked;
use solana_poh::poh_recorder::{create_test_recorder, PohRecorder, WorkingBankEntry};
use solana_runtime::{
accounts_background_service::AbsRequestSender, bank::Bank, bank_forks::BankForks,
cost_model::CostModel, cost_tracker::CostTracker,
cost_model::CostModel,
};
use solana_sdk::{
hash::Hash,
@ -233,9 +233,7 @@ fn main() {
vote_receiver,
None,
replay_vote_sender,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
poh_recorder.lock().unwrap().set_bank(&bank);

14
core/benches/banking_stage.rs
View File

@ -19,7 +19,6 @@ use solana_perf::test_tx::test_tx;
use solana_poh::poh_recorder::{create_test_recorder, WorkingBankEntry};
use solana_runtime::bank::Bank;
use solana_runtime::cost_model::CostModel;
use solana_runtime::cost_tracker::CostTracker;
use solana_runtime::cost_tracker_stats::CostTrackerStats;
use solana_sdk::genesis_config::GenesisConfig;
use solana_sdk::hash::Hash;
@ -95,9 +94,7 @@ fn bench_consume_buffered(bencher: &mut Bencher) {
None::<Box<dyn Fn()>>,
&BankingStageStats::default(),
&recorder,
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::new(std::u64::MAX, std::u64::MAX),
))))),
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
});
@ -172,6 +169,11 @@ fn bench_banking(bencher: &mut Bencher, tx_type: TransactionType) {
bank.ns_per_slot = std::u128::MAX;
let bank = Arc::new(Bank::new_for_benches(&genesis_config));
// set cost tracker limits to MAX so it will not filter out TXs
bank.write_cost_tracker()
.unwrap()
.set_limits(std::u64::MAX, std::u64::MAX);
debug!("threads: {} txs: {}", num_threads, txes);
let transactions = match tx_type {
@ -225,9 +227,7 @@ fn bench_banking(bencher: &mut Bencher, tx_type: TransactionType) {
vote_receiver,
None,
s,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::new(std::u64::MAX, std::u64::MAX),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
poh_recorder.lock().unwrap().set_bank(&bank);

167
core/src/banking_stage.rs
View File

@ -25,6 +25,7 @@ use solana_runtime::{
TransactionExecutionResult,
},
bank_utils,
cost_model::CostModel,
cost_tracker::CostTracker,
cost_tracker_stats::CostTrackerStats,
transaction_batch::TransactionBatch,
@ -55,7 +56,7 @@ use std::{
net::{SocketAddr, UdpSocket},
ops::DerefMut,
sync::atomic::{AtomicU64, AtomicUsize, Ordering},
sync::{Arc, Mutex, RwLock},
sync::{Arc, Mutex, RwLock, RwLockReadGuard},
thread::{self, Builder, JoinHandle},
time::Duration,
time::Instant,
@ -96,7 +97,6 @@ pub struct BankingStageStats {
current_buffered_packet_batches_count: AtomicUsize,
rebuffered_packets_count: AtomicUsize,
consumed_buffered_packets_count: AtomicUsize,
reset_cost_tracker_count: AtomicUsize,
cost_tracker_check_count: AtomicUsize,
cost_forced_retry_transactions_count: AtomicUsize,
@ -175,11 +175,6 @@ impl BankingStageStats {
.swap(0, Ordering::Relaxed) as i64,
i64
),
(
"reset_cost_tracker_count",
self.reset_cost_tracker_count.swap(0, Ordering::Relaxed) as i64,
i64
),
(
"cost_tracker_check_count",
self.cost_tracker_check_count.swap(0, Ordering::Relaxed) as i64,
@ -288,7 +283,7 @@ impl BankingStage {
verified_vote_receiver: CrossbeamReceiver<Vec<Packets>>,
transaction_status_sender: Option<TransactionStatusSender>,
gossip_vote_sender: ReplayVoteSender,
cost_tracker: Arc<RwLock<CostTracker>>,
cost_model: Arc<RwLock<CostModel>>,
) -> Self {
Self::new_num_threads(
cluster_info,
@ -299,7 +294,7 @@ impl BankingStage {
Self::num_threads(),
transaction_status_sender,
gossip_vote_sender,
cost_tracker,
cost_model,
)
}
@ -312,7 +307,7 @@ impl BankingStage {
num_threads: u32,
transaction_status_sender: Option<TransactionStatusSender>,
gossip_vote_sender: ReplayVoteSender,
cost_tracker: Arc<RwLock<CostTracker>>,
cost_model: Arc<RwLock<CostModel>>,
) -> Self {
let batch_limit = TOTAL_BUFFERED_PACKETS / ((num_threads - 1) as usize * PACKETS_PER_BATCH);
// Single thread to generate entries from many banks.
@ -346,8 +341,8 @@ impl BankingStage {
let transaction_status_sender = transaction_status_sender.clone();
let gossip_vote_sender = gossip_vote_sender.clone();
let duplicates = duplicates.clone();
let cost_tracker = cost_tracker.clone();
let data_budget = data_budget.clone();
let cost_model = cost_model.clone();
Builder::new()
.name("solana-banking-stage-tx".to_string())
.spawn(move || {
@ -362,8 +357,8 @@ impl BankingStage {
transaction_status_sender,
gossip_vote_sender,
&duplicates,
&cost_tracker,
&data_budget,
cost_model,
);
})
.unwrap()
@ -426,24 +421,6 @@ impl BankingStage {
has_more_unprocessed_transactions
}
fn reset_cost_tracker_if_new_bank(
cost_tracker: &Arc<RwLock<CostTracker>>,
bank_slot: Slot,
banking_stage_stats: &BankingStageStats,
cost_tracker_stats: &mut CostTrackerStats,
) {
if cost_tracker
.write()
.unwrap()
.reset_if_new_bank(bank_slot, cost_tracker_stats)
{
// only increase counter when bank changed
banking_stage_stats
.reset_cost_tracker_count
.fetch_add(1, Ordering::Relaxed);
}
}
#[allow(clippy::too_many_arguments)]
pub fn consume_buffered_packets(
my_pubkey: &Pubkey,
@ -455,7 +432,7 @@ impl BankingStage {
test_fn: Option<impl Fn()>,
banking_stage_stats: &BankingStageStats,
recorder: &TransactionRecorder,
cost_tracker: &Arc<RwLock<CostTracker>>,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) {
let mut rebuffered_packets_len = 0;
@ -474,8 +451,8 @@ impl BankingStage {
original_unprocessed_indexes,
my_pubkey,
*next_leader,
cost_tracker,
banking_stage_stats,
cost_model,
cost_tracker_stats,
);
Self::update_buffered_packets_with_new_unprocessed(
@ -489,12 +466,6 @@ impl BankingStage {
bank_creation_time,
}) = bank_start
{
Self::reset_cost_tracker_if_new_bank(
cost_tracker,
working_bank.slot(),
banking_stage_stats,
cost_tracker_stats,
);
let (processed, verified_txs_len, new_unprocessed_indexes) =
Self::process_packets_transactions(
&working_bank,
@ -505,7 +476,7 @@ impl BankingStage {
transaction_status_sender.clone(),
gossip_vote_sender,
banking_stage_stats,
cost_tracker,
cost_model,
cost_tracker_stats,
);
if processed < verified_txs_len
@ -611,8 +582,8 @@ impl BankingStage {
gossip_vote_sender: &ReplayVoteSender,
banking_stage_stats: &BankingStageStats,
recorder: &TransactionRecorder,
cost_tracker: &Arc<RwLock<CostTracker>>,
data_budget: &DataBudget,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) -> BufferedPacketsDecision {
let bank_start;
@ -624,15 +595,6 @@ impl BankingStage {
) = {
let poh = poh_recorder.lock().unwrap();
bank_start = poh.bank_start();
if let Some(ref bank_start) = bank_start {
Self::reset_cost_tracker_if_new_bank(
cost_tracker,
bank_start.working_bank.slot(),
banking_stage_stats,
cost_tracker_stats,
);
};
(
poh.leader_after_n_slots(FORWARD_TRANSACTIONS_TO_LEADER_AT_SLOT_OFFSET),
PohRecorder::get_working_bank_if_not_expired(&bank_start.as_ref()),
@ -663,7 +625,7 @@ impl BankingStage {
None::<Box<dyn Fn()>>,
banking_stage_stats,
recorder,
cost_tracker,
cost_model,
cost_tracker_stats,
);
}
@ -742,8 +704,8 @@ impl BankingStage {
transaction_status_sender: Option<TransactionStatusSender>,
gossip_vote_sender: ReplayVoteSender,
duplicates: &Arc<Mutex<(LruCache<u64, ()>, PacketHasher)>>,
cost_tracker: &Arc<RwLock<CostTracker>>,
data_budget: &DataBudget,
cost_model: Arc<RwLock<CostModel>>,
) {
let recorder = poh_recorder.lock().unwrap().recorder();
let socket = UdpSocket::bind("0.0.0.0:0").unwrap();
@ -764,8 +726,8 @@ impl BankingStage {
&gossip_vote_sender,
&banking_stage_stats,
&recorder,
cost_tracker,
data_budget,
&cost_model,
&mut cost_tracker_stats,
);
if matches!(decision, BufferedPacketsDecision::Hold)
@ -801,7 +763,7 @@ impl BankingStage {
&banking_stage_stats,
duplicates,
&recorder,
cost_tracker,
&cost_model,
&mut cost_tracker_stats,
) {
Ok(()) | Err(RecvTimeoutError::Timeout) => (),
@ -906,7 +868,6 @@ impl BankingStage {
};
let mut execute_timings = ExecuteTimings::default();
let (
mut loaded_accounts,
results,
@ -1137,10 +1098,11 @@ impl BankingStage {
msgs: &Packets,
transaction_indexes: &[usize],
feature_set: &Arc<feature_set::FeatureSet>,
cost_tracker: &Arc<RwLock<CostTracker>>,
read_cost_tracker: &RwLockReadGuard<CostTracker>,
banking_stage_stats: &BankingStageStats,
demote_program_write_locks: bool,
votes_only: bool,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) -> (Vec<SanitizedTransaction>, Vec<usize>, Vec<usize>) {
let mut retryable_transaction_packet_indexes: Vec<usize> = vec![];
@ -1171,17 +1133,19 @@ impl BankingStage {
let mut cost_tracker_check_time = Measure::start("cost_tracker_check_time");
let (filtered_transactions, filter_transaction_packet_indexes) = {
let cost_tracker_readonly = cost_tracker.read().unwrap();
verified_transactions_with_packet_indexes
.into_iter()
.filter_map(|(tx, tx_index)| {
// excluding vote TX from cost_model, for now
let is_vote = &msgs.packets[tx_index].meta.is_simple_vote_tx;
if !is_vote
&& cost_tracker_readonly
&& read_cost_tracker
.would_transaction_fit(
&tx,
demote_program_write_locks,
&cost_model
.read()
.unwrap()
.calculate_cost(&tx, demote_program_write_locks),
cost_tracker_stats,
)
.is_err()
@ -1258,7 +1222,7 @@ impl BankingStage {
transaction_status_sender: Option<TransactionStatusSender>,
gossip_vote_sender: &ReplayVoteSender,
banking_stage_stats: &BankingStageStats,
cost_tracker: &Arc<RwLock<CostTracker>>,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) -> (usize, usize, Vec<usize>) {
let mut packet_conversion_time = Measure::start("packet_conversion");
@ -1267,10 +1231,11 @@ impl BankingStage {
msgs,
&packet_indexes,
&bank.feature_set,
cost_tracker,
&bank.read_cost_tracker().unwrap(),
banking_stage_stats,
bank.demote_program_write_locks(),
bank.vote_only_bank(),
cost_model,
cost_tracker_stats,
);
packet_conversion_time.stop();
@ -1308,9 +1273,12 @@ impl BankingStage {
let mut cost_tracking_time = Measure::start("cost_tracking_time");
transactions.iter().enumerate().for_each(|(index, tx)| {
if unprocessed_tx_indexes.iter().all(|&i| i != index) {
cost_tracker.write().unwrap().add_transaction_cost(
bank.write_cost_tracker().unwrap().add_transaction_cost(
tx,
bank.demote_program_write_locks(),
&cost_model
.read()
.unwrap()
.calculate_cost(tx, bank.demote_program_write_locks()),
cost_tracker_stats,
);
}
@ -1357,8 +1325,8 @@ impl BankingStage {
transaction_indexes: &[usize],
my_pubkey: &Pubkey,
next_leader: Option<Pubkey>,
cost_tracker: &Arc<RwLock<CostTracker>>,
banking_stage_stats: &BankingStageStats,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) -> Vec<usize> {
// Check if we are the next leader. If so, let's not filter the packets
@ -1377,10 +1345,11 @@ impl BankingStage {
msgs,
transaction_indexes,
&bank.feature_set,
cost_tracker,
&bank.read_cost_tracker().unwrap(),
banking_stage_stats,
bank.demote_program_write_locks(),
bank.vote_only_bank(),
cost_model,
cost_tracker_stats,
);
unprocessed_packet_conversion_time.stop();
@ -1442,7 +1411,7 @@ impl BankingStage {
banking_stage_stats: &BankingStageStats,
duplicates: &Arc<Mutex<(LruCache<u64, ()>, PacketHasher)>>,
recorder: &TransactionRecorder,
cost_tracker: &Arc<RwLock<CostTracker>>,
cost_model: &Arc<RwLock<CostModel>>,
cost_tracker_stats: &mut CostTrackerStats,
) -> Result<(), RecvTimeoutError> {
let mut recv_time = Measure::start("process_packets_recv");
@ -1490,12 +1459,6 @@ impl BankingStage {
working_bank,
bank_creation_time,
} = &*working_bank_start.unwrap();
Self::reset_cost_tracker_if_new_bank(
cost_tracker,
working_bank.slot(),
banking_stage_stats,
cost_tracker_stats,
);
let (processed, verified_txs_len, unprocessed_indexes) =
Self::process_packets_transactions(
@ -1507,7 +1470,7 @@ impl BankingStage {
transaction_status_sender.clone(),
gossip_vote_sender,
banking_stage_stats,
cost_tracker,
cost_model,
cost_tracker_stats,
);
@ -1540,8 +1503,8 @@ impl BankingStage {
&packet_indexes,
my_pubkey,
next_leader,
cost_tracker,
banking_stage_stats,
cost_model,
cost_tracker_stats,
);
Self::push_unprocessed(
@ -1772,9 +1735,7 @@ mod tests {
gossip_verified_vote_receiver,
None,
gossip_vote_sender,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
drop(verified_sender);
drop(gossip_verified_vote_sender);
@ -1823,9 +1784,7 @@ mod tests {
verified_gossip_vote_receiver,
None,
gossip_vote_sender,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
trace!("sending bank");
drop(verified_sender);
@ -1898,9 +1857,7 @@ mod tests {
gossip_verified_vote_receiver,
None,
gossip_vote_sender,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
// fund another account so we can send 2 good transactions in a single batch.
@ -2051,9 +2008,7 @@ mod tests {
3,
None,
gossip_vote_sender,
Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
Arc::new(RwLock::new(CostModel::default())),
);
// wait for banking_stage to eat the packets
@ -2852,9 +2807,7 @@ mod tests {
None::<Box<dyn Fn()>>,
&BankingStageStats::default(),
&recorder,
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(buffered_packets[0].1.len(), num_conflicting_transactions);
@ -2872,9 +2825,7 @@ mod tests {
None::<Box<dyn Fn()>>,
&BankingStageStats::default(),
&recorder,
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
if num_expected_unprocessed == 0 {
@ -2941,9 +2892,7 @@ mod tests {
test_fn,
&BankingStageStats::default(),
&recorder,
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
@ -3199,12 +3148,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(2, txs.len());
@ -3216,12 +3164,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(0, txs.len());
@ -3242,12 +3189,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(3, txs.len());
@ -3259,12 +3205,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(2, txs.len());
@ -3285,12 +3230,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(3, txs.len());
@ -3302,12 +3246,11 @@ mod tests {
&packets,
&packet_indexes,
&Arc::new(FeatureSet::default()),
&Arc::new(RwLock::new(CostTracker::new(Arc::new(RwLock::new(
CostModel::default(),
))))),
&RwLock::new(CostTracker::default()).read().unwrap(),
&BankingStageStats::default(),
false,
votes_only,
&Arc::new(RwLock::new(CostModel::default())),
&mut CostTrackerStats::default(),
);
assert_eq!(3, txs.len());

4
core/src/tpu.rs
View File

@ -23,7 +23,6 @@ use solana_rpc::{
use solana_runtime::{
bank_forks::BankForks,
cost_model::CostModel,
cost_tracker::CostTracker,
vote_sender_types::{ReplayVoteReceiver, ReplayVoteSender},
};
use std::{
@ -123,7 +122,6 @@ impl Tpu {
cluster_confirmed_slot_sender,
);
let cost_tracker = Arc::new(RwLock::new(CostTracker::new(cost_model.clone())));
let banking_stage = BankingStage::new(
cluster_info,
poh_recorder,
@ -132,7 +130,7 @@ impl Tpu {
verified_gossip_vote_packets_receiver,
transaction_status_sender,
replay_vote_sender,
cost_tracker,
cost_model.clone(),
);
let broadcast_stage = broadcast_type.new_broadcast_stage(

6
ledger-tool/src/main.rs
View File

@ -775,13 +775,11 @@ fn compute_slot_cost(blockstore: &Blockstore, slot: Slot) -> Result<(), String>
let mut program_ids = HashMap::new();
let mut cost_model = CostModel::default();
cost_model.initialize_cost_table(&blockstore.read_program_costs().unwrap());
let cost_model = Arc::new(RwLock::new(cost_model));
let mut cost_tracker = CostTracker::new(cost_model.clone());
let mut cost_tracker = CostTracker::default();
let mut cost_tracker_stats = CostTrackerStats::default();
for entry in entries {
num_transactions += entry.transactions.len();
let mut cost_model = cost_model.write().unwrap();
entry
.transactions
.into_iter()
@ -802,7 +800,7 @@ fn compute_slot_cost(blockstore: &Blockstore, slot: Slot) -> Result<(), String>
true, // demote_program_write_locks
);
if cost_tracker
.try_add(tx_cost, &mut cost_tracker_stats)
.try_add(&transaction, &tx_cost, &mut cost_tracker_stats)
.is_err()
{
println!(

14
runtime/src/bank.rs
View File

@ -44,6 +44,7 @@ use crate::{
ancestors::{Ancestors, AncestorsForSerialization},
blockhash_queue::BlockhashQueue,
builtins::{self, ActivationType, Builtin, Builtins},
cost_tracker::CostTracker,
epoch_stakes::{EpochStakes, NodeVoteAccounts},
inline_spl_token_v2_0,
instruction_recorder::InstructionRecorder,
@ -994,6 +995,8 @@ pub struct Bank {
pub freeze_started: AtomicBool,
vote_only_bank: bool,
pub cost_tracker: RwLock<CostTracker>,
}
impl Default for BlockhashQueue {
@ -1132,6 +1135,7 @@ impl Bank {
drop_callback: RwLock::<OptionalDropCallback>::default(),
freeze_started: AtomicBool::default(),
vote_only_bank: false,
cost_tracker: RwLock::<CostTracker>::default(),
}
}
@ -1382,6 +1386,7 @@ impl Bank {
.map(|drop_callback| drop_callback.clone_box()),
)),
freeze_started: AtomicBool::new(false),
cost_tracker: RwLock::new(CostTracker::default()),
};
datapoint_info!(
@ -1568,6 +1573,7 @@ impl Bank {
drop_callback: RwLock::new(OptionalDropCallback(None)),
freeze_started: AtomicBool::new(fields.hash != Hash::default()),
vote_only_bank: false,
cost_tracker: RwLock::new(CostTracker::default()),
};
bank.finish_init(
genesis_config,
@ -5939,6 +5945,14 @@ impl Bank {
.is_active(&feature_set::send_to_tpu_vote_port::id())
}
pub fn read_cost_tracker(&self) -> LockResult<RwLockReadGuard<CostTracker>> {
self.cost_tracker.read()
}
pub fn write_cost_tracker(&self) -> LockResult<RwLockWriteGuard<CostTracker>> {
self.cost_tracker.write()
}
// Check if the wallclock time from bank creation to now has exceeded the allotted
// time for transaction processing
pub fn should_bank_still_be_processing_txs(

54
runtime/src/cost_model.rs
View File

@ -11,19 +11,7 @@ use std::collections::HashMap;
const MAX_WRITABLE_ACCOUNTS: usize = 256;
#[derive(Debug, Clone)]
pub enum CostModelError {
/// transaction that would fail sanitize, cost model is not able to process
/// such transaction.
InvalidTransaction,
/// would exceed block max limit
WouldExceedBlockMaxLimit,
/// would exceed account max limit
WouldExceedAccountMaxLimit,
}
// costs are stored in number of 'compute unit's
#[derive(AbiExample, Default, Debug)]
pub struct TransactionCost {
pub writable_accounts: Vec<Pubkey>,
@ -59,9 +47,6 @@ pub struct CostModel {
account_cost_limit: u64,
block_cost_limit: u64,
instruction_execution_cost_table: ExecuteCostTable,
// reusable variables
transaction_cost: TransactionCost,
}
impl Default for CostModel {
@ -71,12 +56,11 @@ impl Default for CostModel {
}
impl CostModel {
pub fn new(chain_max: u64, block_max: u64) -> Self {
pub fn new(account_max: u64, block_max: u64) -> Self {
Self {
account_cost_limit: chain_max,
account_cost_limit: account_max,
block_cost_limit: block_max,
instruction_execution_cost_table: ExecuteCostTable::default(),
transaction_cost: TransactionCost::new_with_capacity(MAX_WRITABLE_ACCOUNTS),
}
}
@ -119,22 +103,19 @@ impl CostModel {
}
pub fn calculate_cost(
&mut self,
&self,
transaction: &SanitizedTransaction,
demote_program_write_locks: bool,
) -> &TransactionCost {
self.transaction_cost.reset();
) -> TransactionCost {
let mut tx_cost = TransactionCost::new_with_capacity(MAX_WRITABLE_ACCOUNTS);
self.transaction_cost.signature_cost = self.get_signature_cost(transaction);
self.get_write_lock_cost(transaction, demote_program_write_locks);
self.transaction_cost.data_bytes_cost = self.get_data_bytes_cost(transaction);
self.transaction_cost.execution_cost = self.get_transaction_cost(transaction);
tx_cost.signature_cost = self.get_signature_cost(transaction);
self.get_write_lock_cost(&mut tx_cost, transaction, demote_program_write_locks);
tx_cost.data_bytes_cost = self.get_data_bytes_cost(transaction);
tx_cost.execution_cost = self.get_transaction_cost(transaction);
debug!(
"transaction {:?} has cost {:?}",
transaction, self.transaction_cost
);
&self.transaction_cost
debug!("transaction {:?} has cost {:?}", transaction, tx_cost);
tx_cost
}
pub fn upsert_instruction_cost(
@ -159,7 +140,8 @@ impl CostModel {
}
fn get_write_lock_cost(
&mut self,
&self,
tx_cost: &mut TransactionCost,
transaction: &SanitizedTransaction,
demote_program_write_locks: bool,
) {
@ -168,8 +150,8 @@ impl CostModel {
let is_writable = message.is_writable(i, demote_program_write_locks);
if is_writable {
self.transaction_cost.writable_accounts.push(*k);
self.transaction_cost.write_lock_cost += WRITE_LOCK_UNITS;
tx_cost.writable_accounts.push(*k);
tx_cost.write_lock_cost += WRITE_LOCK_UNITS;
}
});
}
@ -381,7 +363,7 @@ mod tests {
.try_into()
.unwrap();
let mut cost_model = CostModel::default();
let cost_model = CostModel::default();
let tx_cost = cost_model.calculate_cost(&tx, /*demote_program_write_locks=*/ true);
assert_eq!(2 + 2, tx_cost.writable_accounts.len());
assert_eq!(signer1.pubkey(), tx_cost.writable_accounts[0]);
@ -492,7 +474,7 @@ mod tests {
})
} else {
thread::spawn(move || {
let mut cost_model = cost_model.write().unwrap();
let cost_model = cost_model.write().unwrap();
let tx_cost = cost_model
.calculate_cost(&tx, /*demote_program_write_locks=*/ true);
assert_eq!(3, tx_cost.writable_accounts.len());

183
runtime/src/cost_tracker.rs
View File

@ -1,22 +1,27 @@
//! `cost_tracker` keeps tracking transaction cost per chained accounts as well as for entire block
//! It aggregates `cost_model`, which provides service of calculating transaction cost.
//! The main functions are:
//! - would_transaction_fit(&tx), immutable function to test if `tx` would fit into current block
//! - add_transaction_cost(&tx), mutable function to accumulate `tx` cost to tracker.
//! - would_transaction_fit(&tx_cost), immutable function to test if tx with tx_cost would fit into current block
//! - add_transaction_cost(&tx_cost), mutable function to accumulate tx_cost to tracker.
//!
use crate::cost_model::{CostModel, CostModelError, TransactionCost};
use crate::block_cost_limits::*;
use crate::cost_model::TransactionCost;
use crate::cost_tracker_stats::CostTrackerStats;
use solana_sdk::{clock::Slot, pubkey::Pubkey, transaction::SanitizedTransaction};
use std::{
collections::HashMap,
sync::{Arc, RwLock},
};
use std::collections::HashMap;
const WRITABLE_ACCOUNTS_PER_BLOCK: usize = 512;
#[derive(Debug, Clone)]
pub enum CostTrackerError {
/// would exceed block max limit
WouldExceedBlockMaxLimit,
/// would exceed account max limit
WouldExceedAccountMaxLimit,
}
#[derive(AbiExample, Debug)]
pub struct CostTracker {
cost_model: Arc<RwLock<CostModel>>,
account_cost_limit: u64,
block_cost_limit: u64,
current_bank_slot: Slot,
@ -26,22 +31,14 @@ pub struct CostTracker {
impl Default for CostTracker {
fn default() -> Self {
CostTracker::new(Arc::new(RwLock::new(CostModel::default())))
CostTracker::new(MAX_WRITABLE_ACCOUNT_UNITS, MAX_BLOCK_UNITS)
}
}
impl CostTracker {
pub fn new(cost_model: Arc<RwLock<CostModel>>) -> Self {
let (account_cost_limit, block_cost_limit) = {
let cost_model = cost_model.read().unwrap();
(
cost_model.get_account_cost_limit(),
cost_model.get_block_cost_limit(),
)
};
pub fn new(account_cost_limit: u64, block_cost_limit: u64) -> Self {
assert!(account_cost_limit <= block_cost_limit);
Self {
cost_model,
account_cost_limit,
block_cost_limit,
current_bank_slot: 0,
@ -50,65 +47,43 @@ impl CostTracker {
}
}
// bench tests needs to reset limits
pub fn set_limits(&mut self, account_cost_limit: u64, block_cost_limit: u64) {
self.account_cost_limit = account_cost_limit;
self.block_cost_limit = block_cost_limit;
}
pub fn would_transaction_fit(
&self,
transaction: &SanitizedTransaction,
demote_program_write_locks: bool,
_transaction: &SanitizedTransaction,
tx_cost: &TransactionCost,
stats: &mut CostTrackerStats,
) -> Result<(), CostModelError> {
let mut cost_model = self.cost_model.write().unwrap();
let tx_cost = cost_model.calculate_cost(transaction, demote_program_write_locks);
) -> Result<(), CostTrackerError> {
self.would_fit(&tx_cost.writable_accounts, &tx_cost.sum(), stats)
}
pub fn add_transaction_cost(
&mut self,
transaction: &SanitizedTransaction,
demote_program_write_locks: bool,
_transaction: &SanitizedTransaction,
tx_cost: &TransactionCost,
stats: &mut CostTrackerStats,
) {
let mut cost_model = self.cost_model.write().unwrap();
let tx_cost = cost_model.calculate_cost(transaction, demote_program_write_locks);
let cost = tx_cost.sum();
for account_key in tx_cost.writable_accounts.iter() {
*self
.cost_by_writable_accounts
.entry(*account_key)
.or_insert(0) += cost;
}
self.block_cost += cost;
self.add_transaction(&tx_cost.writable_accounts, &cost);
stats.transaction_count += 1;
stats.block_cost += cost;
}
pub fn reset_if_new_bank(&mut self, slot: Slot, stats: &mut CostTrackerStats) -> bool {
// report stats when slot changes
if slot != stats.bank_slot {
stats.report();
*stats = CostTrackerStats::new(stats.id, slot);
}
if slot != self.current_bank_slot {
self.current_bank_slot = slot;
self.cost_by_writable_accounts.clear();
self.block_cost = 0;
true
} else {
false
}
}
pub fn try_add(
&mut self,
transaction_cost: &TransactionCost,
_transaction: &SanitizedTransaction,
tx_cost: &TransactionCost,
stats: &mut CostTrackerStats,
) -> Result<u64, CostModelError> {
let cost = transaction_cost.sum();
self.would_fit(&transaction_cost.writable_accounts, &cost, stats)?;
self.add_transaction(&transaction_cost.writable_accounts, &cost);
) -> Result<u64, CostTrackerError> {
let cost = tx_cost.sum();
self.would_fit(&tx_cost.writable_accounts, &cost, stats)?;
self.add_transaction(&tx_cost.writable_accounts, &cost);
Ok(self.block_cost)
}
@ -117,17 +92,17 @@ impl CostTracker {
keys: &[Pubkey],
cost: &u64,
stats: &mut CostTrackerStats,
) -> Result<(), CostModelError> {
) -> Result<(), CostTrackerError> {
stats.transaction_cost_histogram.increment(*cost).unwrap();
// check against the total package cost
if self.block_cost + cost > self.block_cost_limit {
return Err(CostModelError::WouldExceedBlockMaxLimit);
return Err(CostTrackerError::WouldExceedBlockMaxLimit);
}
// check if the transaction itself is more costly than the account_cost_limit
if *cost > self.account_cost_limit {
return Err(CostModelError::WouldExceedAccountMaxLimit);
return Err(CostTrackerError::WouldExceedAccountMaxLimit);
}
// check each account against account_cost_limit,
@ -140,7 +115,7 @@ impl CostTracker {
.unwrap();
if chained_cost + cost > self.account_cost_limit {
return Err(CostModelError::WouldExceedAccountMaxLimit);
return Err(CostTrackerError::WouldExceedAccountMaxLimit);
} else {
continue;
}
@ -207,7 +182,7 @@ mod tests {
system_transaction,
transaction::Transaction,
};
use std::{cmp, sync::Arc};
use std::{cmp, convert::TryFrom, sync::Arc};
fn test_setup() -> (Keypair, Hash) {
solana_logger::setup();
@ -234,7 +209,7 @@ mod tests {
#[test]
fn test_cost_tracker_initialization() {
let testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(10, 11))));
let testee = CostTracker::new(10, 11);
assert_eq!(10, testee.account_cost_limit);
assert_eq!(11, testee.block_cost_limit);
assert_eq!(0, testee.cost_by_writable_accounts.len());
@ -247,7 +222,7 @@ mod tests {
let (_tx, keys, cost) = build_simple_transaction(&mint_keypair, &start_hash);
// build testee to have capacity for one simple transaction
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(cost, cost))));
let mut testee = CostTracker::new(cost, cost);
assert!(testee
.would_fit(&keys, &cost, &mut CostTrackerStats::default())
.is_ok());
@ -263,10 +238,7 @@ mod tests {
let (_tx2, keys2, cost2) = build_simple_transaction(&mint_keypair, &start_hash);
// build testee to have capacity for two simple transactions, with same accounts
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
cost1 + cost2,
cost1 + cost2,
))));
let mut testee = CostTracker::new(cost1 + cost2, cost1 + cost2);
{
assert!(testee
.would_fit(&keys1, &cost1, &mut CostTrackerStats::default())
@ -292,10 +264,7 @@ mod tests {
let (_tx2, keys2, cost2) = build_simple_transaction(&second_account, &start_hash);
// build testee to have capacity for two simple transactions, with same accounts
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
cmp::max(cost1, cost2),
cost1 + cost2,
))));
let mut testee = CostTracker::new(cmp::max(cost1, cost2), cost1 + cost2);
{
assert!(testee
.would_fit(&keys1, &cost1, &mut CostTrackerStats::default())
@ -320,10 +289,7 @@ mod tests {
let (_tx2, keys2, cost2) = build_simple_transaction(&mint_keypair, &start_hash);
// build testee to have capacity for two simple transactions, but not for same accounts
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
cmp::min(cost1, cost2),
cost1 + cost2,
))));
let mut testee = CostTracker::new(cmp::min(cost1, cost2), cost1 + cost2);
// should have room for first transaction
{
assert!(testee
@ -348,10 +314,7 @@ mod tests {
let (_tx2, keys2, cost2) = build_simple_transaction(&second_account, &start_hash);
// build testee to have capacity for each chain, but not enough room for both transactions
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
cmp::max(cost1, cost2),
cost1 + cost2 - 1,
))));
let mut testee = CostTracker::new(cmp::max(cost1, cost2), cost1 + cost2 - 1);
// should have room for first transaction
{
assert!(testee
@ -367,49 +330,12 @@ mod tests {
}
}
#[test]
fn test_cost_tracker_reset() {
let (mint_keypair, start_hash) = test_setup();
// build two transactions with same signed account
let (_tx1, keys1, cost1) = build_simple_transaction(&mint_keypair, &start_hash);
let (_tx2, keys2, cost2) = build_simple_transaction(&mint_keypair, &start_hash);
// build testee to have capacity for two simple transactions, but not for same accounts
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
cmp::min(cost1, cost2),
cost1 + cost2,
))));
// should have room for first transaction
{
assert!(testee
.would_fit(&keys1, &cost1, &mut CostTrackerStats::default())
.is_ok());
testee.add_transaction(&keys1, &cost1);
assert_eq!(1, testee.cost_by_writable_accounts.len());
assert_eq!(cost1, testee.block_cost);
}
// but no more sapce on the same chain (same signer account)
{
assert!(testee
.would_fit(&keys2, &cost2, &mut CostTrackerStats::default())
.is_err());
}
// reset the tracker
{
testee.reset_if_new_bank(100, &mut CostTrackerStats::default());
assert_eq!(0, testee.cost_by_writable_accounts.len());
assert_eq!(0, testee.block_cost);
}
//now the second transaction can be added
{
assert!(testee
.would_fit(&keys2, &cost2, &mut CostTrackerStats::default())
.is_ok());
}
}
#[test]
fn test_cost_tracker_try_add_is_atomic() {
let (mint_keypair, start_hash) = test_setup();
let (tx, _keys, _cost) = build_simple_transaction(&mint_keypair, &start_hash);
let tx = SanitizedTransaction::try_from(tx).unwrap();
let acct1 = Pubkey::new_unique();
let acct2 = Pubkey::new_unique();
let acct3 = Pubkey::new_unique();
@ -417,10 +343,7 @@ mod tests {
let account_max = cost * 2;
let block_max = account_max * 3; // for three accts
let mut testee = CostTracker::new(Arc::new(RwLock::new(CostModel::new(
account_max,
block_max,
))));
let mut testee = CostTracker::new(account_max, block_max);
// case 1: a tx writes to 3 accounts, should success, we will have:
// | acct1 | $cost |
@ -434,7 +357,7 @@ mod tests {
..TransactionCost::default()
};
assert!(testee
.try_add(&tx_cost, &mut CostTrackerStats::default())
.try_add(&tx, &tx_cost, &mut CostTrackerStats::default())
.is_ok());
let stat = testee.get_stats();
assert_eq!(cost, stat.total_cost);
@ -454,7 +377,7 @@ mod tests {
..TransactionCost::default()
};
assert!(testee
.try_add(&tx_cost, &mut CostTrackerStats::default())
.try_add(&tx, &tx_cost, &mut CostTrackerStats::default())
.is_ok());
let stat = testee.get_stats();
assert_eq!(cost * 2, stat.total_cost);
@ -476,7 +399,7 @@ mod tests {
..TransactionCost::default()
};
assert!(testee
.try_add(&tx_cost, &mut CostTrackerStats::default())
.try_add(&tx, &tx_cost, &mut CostTrackerStats::default())
.is_err());
let stat = testee.get_stats();
assert_eq!(cost * 2, stat.total_cost);