Introduce options for fine-grained management of work queue. (#1484)

* Introduce options for fine-grained management of work queue.

- Minimum reseal period between non-mandatory (transaction) reseals.
- Maximum historical cached block size.

Defaults changed to reflect real-world scenarios (2s, 20 blocks).

* Fix test bug.

* 50 -> 20.
This commit is contained in:
Gav Wood 2016-06-29 16:26:19 +02:00 committed by GitHub
parent c096c087df
commit 5d1ff3d7ba
4 changed files with 34 additions and 5 deletions

View File

@ -16,6 +16,7 @@
use rayon::prelude::*;
use std::sync::atomic::AtomicBool;
use std::time::{Instant, Duration};
use util::*;
use account_provider::AccountProvider;
@ -50,12 +51,16 @@ pub struct MinerOptions {
pub reseal_on_external_tx: bool,
/// Reseal on receipt of new local transactions.
pub reseal_on_own_tx: bool,
/// Minimum period between transaction-inspired reseals.
pub reseal_min_period: Duration,
/// Maximum amount of gas to bother considering for block insertion.
pub tx_gas_limit: U256,
/// Maximum size of the transaction queue.
pub tx_queue_size: usize,
/// Whether we should fallback to providing all the queue's transactions or just pending.
pub pending_set: PendingSet,
/// How many historical work packages can we store before running out?
pub work_queue_size: usize,
}
impl Default for MinerOptions {
@ -67,6 +72,8 @@ impl Default for MinerOptions {
tx_gas_limit: !U256::zero(),
tx_queue_size: 1024,
pending_set: PendingSet::AlwaysQueue,
reseal_min_period: Duration::from_secs(0),
work_queue_size: 20,
}
}
}
@ -80,6 +87,7 @@ pub struct Miner {
// for sealing...
options: MinerOptions,
sealing_enabled: AtomicBool,
next_allowed_reseal: Mutex<Instant>,
sealing_block_last_request: Mutex<u64>,
gas_range_target: RwLock<(U256, U256)>,
author: RwLock<Address>,
@ -96,8 +104,9 @@ impl Miner {
transaction_queue: Mutex::new(TransactionQueue::new()),
options: Default::default(),
sealing_enabled: AtomicBool::new(false),
next_allowed_reseal: Mutex::new(Instant::now()),
sealing_block_last_request: Mutex::new(0),
sealing_work: Mutex::new(UsingQueue::new(5)),
sealing_work: Mutex::new(UsingQueue::new(20)),
gas_range_target: RwLock::new((U256::zero(), U256::zero())),
author: RwLock::new(Address::default()),
extra_data: RwLock::new(Vec::new()),
@ -111,13 +120,14 @@ impl Miner {
Arc::new(Miner {
transaction_queue: Mutex::new(TransactionQueue::with_limits(options.tx_queue_size, options.tx_gas_limit)),
sealing_enabled: AtomicBool::new(options.force_sealing),
options: options,
next_allowed_reseal: Mutex::new(Instant::now()),
sealing_block_last_request: Mutex::new(0),
sealing_work: Mutex::new(UsingQueue::new(5)),
sealing_work: Mutex::new(UsingQueue::new(options.work_queue_size)),
gas_range_target: RwLock::new((U256::zero(), U256::zero())),
author: RwLock::new(Address::default()),
extra_data: RwLock::new(Vec::new()),
accounts: accounts,
options: options,
spec: spec,
})
}
@ -261,6 +271,9 @@ impl Miner {
// Return if
!have_work
}
/// Are we allowed to do a non-mandatory reseal?
fn tx_reseal_allowed(&self) -> bool { Instant::now() > *self.next_allowed_reseal.lock().unwrap() }
}
const SEALING_TIMEOUT_IN_BLOCKS : u64 = 5;
@ -431,7 +444,7 @@ impl MinerService for Miner {
.map(|tx| transaction_queue.add(tx, &fetch_account, TransactionOrigin::External))
.collect()
};
if !results.is_empty() && self.options.reseal_on_external_tx {
if !results.is_empty() && self.options.reseal_on_external_tx && self.tx_reseal_allowed() {
self.update_sealing(chain);
}
results
@ -466,7 +479,7 @@ impl MinerService for Miner {
import
};
if imported.is_ok() && self.options.reseal_on_own_tx {
if imported.is_ok() && self.options.reseal_on_own_tx && self.tx_reseal_allowed() {
// Make sure to do it after transaction is imported and lock is droped.
// We need to create pending block and enable sealing
let prepared = self.enable_and_prepare_sealing(chain);
@ -559,6 +572,7 @@ impl MinerService for Miner {
self.sealing_enabled.store(false, atomic::Ordering::Relaxed);
self.sealing_work.lock().unwrap().reset();
} else {
*self.next_allowed_reseal.lock().unwrap() = Instant::now() + self.options.reseal_min_period;
self.prepare_sealing(chain);
}
}

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@ -137,6 +137,13 @@ Sealing/Mining Options:
own - reseal only on a new local transaction;
ext - reseal only on a new external transaction;
all - reseal on all new transactions [default: all].
--reseal-min-period MS Specify the minimum time between reseals from
incoming transactions. MS is time measured in
milliseconds [default: 2000].
--work-queue-size ITEMS Specify the number of historical work packages
which are kept cached lest a solution is found for
them later. High values take more memory but result
in fewer unusable solutions [default: 20].
--tx-gas-limit GAS Apply a limit of GAS as the maximum amount of gas
a single transaction may have for it to be mined.
--relay-set SET Set of transactions to relay. SET may be:
@ -302,6 +309,8 @@ pub struct Args {
pub flag_no_token: bool,
pub flag_force_sealing: bool,
pub flag_reseal_on_txs: String,
pub flag_reseal_min_period: u64,
pub flag_work_queue_size: usize,
pub flag_tx_gas_limit: Option<String>,
pub flag_relay_set: String,
pub flag_author: Option<String>,

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@ -16,6 +16,7 @@
use std::env;
use std::fs::File;
use std::time::Duration;
use std::io::{BufRead, BufReader};
use std::net::{SocketAddr, IpAddr};
use std::path::PathBuf;
@ -103,6 +104,8 @@ impl Configuration {
"lenient" => PendingSet::SealingOrElseQueue,
x => die!("{}: Invalid value for --relay-set option. Use --help for more information.", x)
},
reseal_min_period: Duration::from_millis(self.args.flag_reseal_min_period),
work_queue_size: self.args.flag_work_queue_size,
}
}

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@ -17,6 +17,7 @@
//! rpc integration tests.
use std::sync::Arc;
use std::str::FromStr;
use std::time::Duration;
use ethcore::client::{BlockChainClient, Client, ClientConfig};
use ethcore::ids::BlockID;
@ -57,6 +58,8 @@ fn miner_service(spec: Spec, accounts: Arc<AccountProvider>) -> Arc<Miner> {
tx_queue_size: 1024,
tx_gas_limit: !U256::zero(),
pending_set: PendingSet::SealingOrElseQueue,
reseal_min_period: Duration::from_secs(0),
work_queue_size: 50,
},
spec,
Some(accounts)