- move cost tracker into bank, so each bank has its own cost tracker;

- move related modules to runtime

banking-bench/src/main.rs

@@ -4,7 +4,7 @@ use crossbeam_channel::unbounded;
 use log::*;
 use rand::{thread_rng, Rng};
 use rayon::prelude::*;
-use solana_core::{banking_stage::BankingStage, cost_model::CostModel, cost_tracker::CostTracker};
+use solana_core::banking_stage::BankingStage;
 use solana_gossip::{cluster_info::ClusterInfo, cluster_info::Node};
 use solana_ledger::{
     blockstore::Blockstore,
@@ -16,6 +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,
 };
 use solana_sdk::{
     hash::Hash,

core/benches/banking_stage.rs

@@ -8,9 +8,6 @@ use log::*;
 use rand::{thread_rng, Rng};
 use rayon::prelude::*;
 use solana_core::banking_stage::{BankingStage, BankingStageStats};
-use solana_core::cost_model::CostModel;
-use solana_core::cost_tracker::CostTracker;
-use solana_core::cost_tracker_stats::CostTrackerStats;
 use solana_entry::entry::{next_hash, Entry};
 use solana_gossip::cluster_info::ClusterInfo;
 use solana_gossip::cluster_info::Node;
@@ -21,6 +18,9 @@ use solana_perf::packet::to_packets_chunked;
 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;
 use solana_sdk::message::Message;

core/src/banking_stage.rs

@@ -1,9 +1,7 @@
 //! The `banking_stage` processes Transaction messages. It is intended to be used
 //! to contruct a software pipeline. The stage uses all available CPU cores and
 //! can do its processing in parallel with signature verification on the GPU.
-use crate::{
-    cost_tracker::CostTracker, cost_tracker_stats::CostTrackerStats, packet_hasher::PacketHasher,
-};
+use crate::packet_hasher::PacketHasher;
 use crossbeam_channel::{Receiver as CrossbeamReceiver, RecvTimeoutError};
 use itertools::Itertools;
 use lru::LruCache;
@@ -27,6 +25,8 @@ use solana_runtime::{
         TransactionExecutionResult,
     },
     bank_utils,
+    cost_tracker::CostTracker,
+    cost_tracker_stats::CostTrackerStats,
     transaction_batch::TransactionBatch,
     vote_sender_types::ReplayVoteSender,
 };
@@ -1697,7 +1697,6 @@ where
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::cost_model::CostModel;
     use crossbeam_channel::unbounded;
     use itertools::Itertools;
     use solana_entry::entry::{next_entry, Entry, EntrySlice};
@@ -1714,6 +1713,7 @@ mod tests {
         poh_service::PohService,
     };
     use solana_rpc::transaction_status_service::TransactionStatusService;
+    use solana_runtime::cost_model::CostModel;
     use solana_sdk::{
         hash::Hash,
         instruction::InstructionError,

core/src/cost_update_service.rs

@@ -3,10 +3,9 @@
 //! packing transactions into block; it also triggers persisting cost
 //! table to blockstore.
 
-use crate::cost_model::CostModel;
 use solana_ledger::blockstore::Blockstore;
 use solana_measure::measure::Measure;
-use solana_runtime::bank::ExecuteTimings;
+use solana_runtime::{bank::ExecuteTimings, cost_model::CostModel};
 use solana_sdk::timing::timestamp;
 use std::{
     sync::{

core/src/lib.rs

@@ -20,12 +20,8 @@ pub mod cluster_slots_service;
 pub mod commitment_service;
 pub mod completed_data_sets_service;
 pub mod consensus;
-pub mod cost_model;
-pub mod cost_tracker;
-pub mod cost_tracker_stats;
 pub mod cost_update_service;
 pub mod duplicate_repair_status;
-pub mod execute_cost_table;
 pub mod fetch_stage;
 pub mod fork_choice;
 pub mod gen_keys;

core/src/tpu.rs

@@ -8,8 +8,6 @@ use crate::{
         ClusterInfoVoteListener, GossipDuplicateConfirmedSlotsSender, GossipVerifiedVoteHashSender,
         VerifiedVoteSender, VoteTracker,
     },
-    cost_model::CostModel,
-    cost_tracker::CostTracker,
     fetch_stage::FetchStage,
     sigverify::TransactionSigVerifier,
     sigverify_stage::SigVerifyStage,
@@ -24,6 +22,8 @@ use solana_rpc::{
 };
 use solana_runtime::{
     bank_forks::BankForks,
+    cost_model::CostModel,
+    cost_tracker::CostTracker,
     vote_sender_types::{ReplayVoteReceiver, ReplayVoteSender},
 };
 use std::{

core/src/tvu.rs

@@ -12,7 +12,6 @@ use crate::{
     cluster_slots::ClusterSlots,
     completed_data_sets_service::CompletedDataSetsSender,
     consensus::Tower,
-    cost_model::CostModel,
     cost_update_service::CostUpdateService,
     ledger_cleanup_service::LedgerCleanupService,
     replay_stage::{ReplayStage, ReplayStageConfig},
@@ -43,6 +42,7 @@ use solana_runtime::{
     bank::ExecuteTimings,
     bank_forks::BankForks,
     commitment::BlockCommitmentCache,
+    cost_model::CostModel,
     snapshot_config::SnapshotConfig,
     snapshot_package::{AccountsPackageReceiver, AccountsPackageSender, PendingSnapshotPackage},
     vote_sender_types::ReplayVoteSender,

core/src/validator.rs

@@ -8,7 +8,6 @@ use {
         cluster_info_vote_listener::VoteTracker,
         completed_data_sets_service::CompletedDataSetsService,
         consensus::{reconcile_blockstore_roots_with_tower, Tower},
-        cost_model::CostModel,
         rewards_recorder_service::{RewardsRecorderSender, RewardsRecorderService},
         sample_performance_service::SamplePerformanceService,
         serve_repair::ServeRepair,
@@ -69,6 +68,7 @@ use {
         bank::Bank,
         bank_forks::BankForks,
         commitment::BlockCommitmentCache,
+        cost_model::CostModel,
         hardened_unpack::{open_genesis_config, MAX_GENESIS_ARCHIVE_UNPACKED_SIZE},
         snapshot_archive_info::SnapshotArchiveInfoGetter,
         snapshot_config::SnapshotConfig,

ledger-tool/src/main.rs

@@ -15,9 +15,6 @@ use solana_clap_utils::{
         is_bin, is_parsable, is_pubkey, is_pubkey_or_keypair, is_slot, is_valid_percentage,
     },
 };
-use solana_core::cost_model::CostModel;
-use solana_core::cost_tracker::CostTracker;
-use solana_core::cost_tracker_stats::CostTrackerStats;
 use solana_entry::entry::Entry;
 use solana_ledger::{
     ancestor_iterator::AncestorIterator,
@@ -32,6 +29,9 @@ use solana_runtime::{
     accounts_index::AccountsIndexConfig,
     bank::{Bank, RewardCalculationEvent},
     bank_forks::BankForks,
+    cost_model::CostModel,
+    cost_tracker::CostTracker,
+    cost_tracker_stats::CostTrackerStats,
     hardened_unpack::{open_genesis_config, MAX_GENESIS_ARCHIVE_UNPACKED_SIZE},
     snapshot_archive_info::SnapshotArchiveInfoGetter,
     snapshot_config::SnapshotConfig,

ledger/src/blockstore_processor.rs

@@ -1,7 +1,6 @@
 use crate::{
-    block_cost_limits::*, block_error::BlockError, blockstore::Blockstore,
-    blockstore_db::BlockstoreError, blockstore_meta::SlotMeta,
-    leader_schedule_cache::LeaderScheduleCache,
+    block_error::BlockError, blockstore::Blockstore, blockstore_db::BlockstoreError,
+    blockstore_meta::SlotMeta, leader_schedule_cache::LeaderScheduleCache,
 };
 use chrono_humanize::{Accuracy, HumanTime, Tense};
 use crossbeam_channel::Sender;
@@ -25,6 +24,7 @@ use solana_runtime::{
     },
     bank_forks::BankForks,
     bank_utils,
+    block_cost_limits::*,
     commitment::VOTE_THRESHOLD_SIZE,
     snapshot_config::SnapshotConfig,
     snapshot_package::{AccountsPackageSender, SnapshotType},

ledger/src/lib.rs

@@ -11,7 +11,6 @@ pub mod block_error;
 #[macro_use]
 pub mod blockstore;
 pub mod ancestor_iterator;
-pub mod block_cost_limits;
 pub mod blockstore_db;
 pub mod blockstore_meta;
 pub mod blockstore_processor;

runtime/Cargo.toml

@@ -21,6 +21,7 @@ crossbeam-channel = "0.5"
 dir-diff = "0.3.2"
 flate2 = "1.0.22"
 fnv = "1.0.7"
+histogram = "0.6.9"
 itertools = "0.10.1"
 lazy_static = "1.4.0"
 log = "0.4.14"

core/src/cost_model.rs → runtime/src/cost_model.rs

@@ -4,9 +4,8 @@
 //!
 //! The main function is `calculate_cost` which returns &TransactionCost.
 //!
-use crate::execute_cost_table::ExecuteCostTable;
+use crate::{block_cost_limits::*, execute_cost_table::ExecuteCostTable};
 use log::*;
-use solana_ledger::block_cost_limits::*;
 use solana_sdk::{pubkey::Pubkey, transaction::SanitizedTransaction};
 use std::collections::HashMap;
 
@@ -25,7 +24,7 @@ pub enum CostModelError {
     WouldExceedAccountMaxLimit,
 }
 
-#[derive(Default, Debug)]
+#[derive(AbiExample, Default, Debug)]
 pub struct TransactionCost {
     pub writable_accounts: Vec<Pubkey>,
     pub signature_cost: u64,
@@ -55,7 +54,7 @@ impl TransactionCost {
     }
 }
 
-#[derive(Debug)]
+#[derive(AbiExample, Debug)]
 pub struct CostModel {
     account_cost_limit: u64,
     block_cost_limit: u64,
@@ -219,7 +218,7 @@ impl CostModel {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use solana_runtime::{
+    use crate::{
         bank::Bank,
         genesis_utils::{create_genesis_config, GenesisConfigInfo},
     };

core/src/cost_tracker.rs → runtime/src/cost_tracker.rs

@@ -14,7 +14,7 @@ use std::{
 
 const WRITABLE_ACCOUNTS_PER_BLOCK: usize = 512;
 
-#[derive(Debug)]
+#[derive(AbiExample, Debug)]
 pub struct CostTracker {
     cost_model: Arc<RwLock<CostModel>>,
     account_cost_limit: u64,
@@ -24,6 +24,12 @@ pub struct CostTracker {
     block_cost: u64,
 }
 
+impl Default for CostTracker {
+    fn default() -> Self {
+        CostTracker::new(Arc::new(RwLock::new(CostModel::default())))
+    }
+}
+
 impl CostTracker {
     pub fn new(cost_model: Arc<RwLock<CostModel>>) -> Self {
         let (account_cost_limit, block_cost_limit) = {
@@ -191,7 +197,7 @@ impl CostTracker {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use solana_runtime::{
+    use crate::{
         bank::Bank,
         genesis_utils::{create_genesis_config, GenesisConfigInfo},
     };

core/src/execute_cost_table.rs → runtime/src/execute_cost_table.rs

@@ -5,7 +5,7 @@
 /// to make room for new ones.
 use log::*;
 use solana_sdk::pubkey::Pubkey;
-use std::{collections::HashMap, time::SystemTime};
+use std::collections::HashMap;
 
 // prune is rather expensive op, free up bulk space in each operation
 // would be more efficient. PRUNE_RATIO defines the after prune table
@@ -16,11 +16,11 @@ const OCCURRENCES_WEIGHT: i64 = 100;
 
 const DEFAULT_CAPACITY: usize = 1024;
 
-#[derive(Debug)]
+#[derive(AbiExample, Debug)]
 pub struct ExecuteCostTable {
     capacity: usize,
     table: HashMap<Pubkey, u64>,
-    occurrences: HashMap<Pubkey, (usize, SystemTime)>,
+    occurrences: HashMap<Pubkey, (usize, u128)>,
 }
 
 impl Default for ExecuteCostTable {
@@ -91,9 +91,9 @@ impl ExecuteCostTable {
         let (count, timestamp) = self
             .occurrences
             .entry(*key)
-            .or_insert((0, SystemTime::now()));
+            .or_insert((0, Self::micros_since_epoch()));
         *count += 1;
-        *timestamp = SystemTime::now();
+        *timestamp = Self::micros_since_epoch();
 
         Some(*program_cost)
     }
@@ -120,12 +120,12 @@ impl ExecuteCostTable {
             return;
         }
 
-        let now = SystemTime::now();
+        let now = Self::micros_since_epoch();
         let mut sorted_by_weighted_age: Vec<_> = self
             .occurrences
             .iter()
             .map(|(key, (count, timestamp))| {
-                let age = now.duration_since(*timestamp).unwrap().as_micros();
+                let age = now - timestamp;
                 let weighted_age = *count as i64 * OCCURRENCES_WEIGHT + -(age as i64);
                 (weighted_age, *key)
             })
@@ -140,6 +140,13 @@ impl ExecuteCostTable {
             }
         }
     }
+
+    fn micros_since_epoch() -> u128 {
+        std::time::SystemTime::now()
+            .duration_since(std::time::UNIX_EPOCH)
+            .unwrap()
+            .as_micros()
+    }
 }
 
 #[cfg(test)]

runtime/src/lib.rs

@@ -14,6 +14,7 @@ pub mod bank;
 pub mod bank_client;
 pub mod bank_forks;
 pub mod bank_utils;
+pub mod block_cost_limits;
 pub mod blockhash_queue;
 pub mod bloom;
 pub mod bucket_map_holder;
@@ -23,7 +24,11 @@ pub mod cache_hash_data;
 pub mod cache_hash_data_stats;
 pub mod commitment;
 pub mod contains;
+pub mod cost_model;
+pub mod cost_tracker;
+pub mod cost_tracker_stats;
 pub mod epoch_stakes;
+pub mod execute_cost_table;
 pub mod genesis_utils;
 pub mod hardened_unpack;
 pub mod in_mem_accounts_index;