mirrors/mempool
1
0
Fork 0
mirror of https://github.com/mempool/mempool.git synced 2025-02-22 22:25:34 +01:00
Code Issues Projects Releases Wiki Activity

conform to core's gbt quirks

Browse source
This commit is contained in:
Mononaut 2023-06-27 17:44:52 -04:00
parent 71f150b587
commit 10beb76585
No known key found for this signature in database
GPG key ID: A3F058E41374C04E
3 changed files with 33 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
backend/rust-gbt/src/audit_transaction.rs
View file

@ -14,6 +14,7 @@ pub struct AuditTransaction {
pub uid: u32,
pub fee: u64,
pub weight: u32,
pub vsize: u32,
pub sigops: u32,
pub fee_per_vsize: f64,
pub effective_fee_per_vsize: f64,
@ -24,6 +25,7 @@ pub struct AuditTransaction {
pub children: HashSet<u32, U32HasherState>,
ancestor_fee: u64,
ancestor_weight: u32,
ancestor_vsize: u32,
ancestor_sigops: u32,
// Safety: Must be private to prevent NaN breaking Ord impl.
score: f64,
@ -74,6 +76,7 @@ impl AuditTransaction {
uid: tx.uid,
fee: tx.fee,
weight: tx.weight,
vsize: ((tx.weight + 3) / 4).max(tx.sigops * 5), // rounded up to the nearest integer
sigops: tx.sigops,
fee_per_vsize: tx.fee_per_vsize,
effective_fee_per_vsize: tx.effective_fee_per_vsize,
@ -84,6 +87,7 @@ impl AuditTransaction {
children: u32hashset_new(),
ancestor_fee: tx.fee,
ancestor_weight: tx.weight,
ancestor_vsize: ((tx.weight + 3) / 4).max(tx.sigops * 5), // rounded up to the nearest integer
ancestor_sigops: tx.sigops,
score: 0.0,
used: false,
@ -98,8 +102,8 @@ impl AuditTransaction {
}
#[inline]
pub const fn ancestor_weight(&self) -> u32 {
self.ancestor_weight
pub const fn ancestor_vsize(&self) -> u32 {
self.ancestor_vsize
}
#[inline]
@ -128,10 +132,10 @@ impl AuditTransaction {
#[inline]
fn calc_new_score(&mut self) {
self.score = (self.ancestor_fee as f64)
/ (if self.ancestor_weight == 0 {
/ (if self.ancestor_vsize == 0 {
1.0
} else {
f64::from(self.ancestor_weight) / 4.0
f64::from(self.ancestor_vsize)
});
}
@ -141,11 +145,13 @@ impl AuditTransaction {
ancestors: HashSet<u32, U32HasherState>,
total_fee: u64,
total_weight: u32,
total_vsize: u32,
total_sigops: u32,
) {
self.ancestors = ancestors;
self.ancestor_fee = self.fee + total_fee;
self.ancestor_weight = self.weight + total_weight;
self.ancestor_vsize = self.vsize + total_vsize;
self.ancestor_sigops = self.sigops + total_sigops;
self.calc_new_score();
self.relatives_set_flag = true;
@ -157,6 +163,7 @@ impl AuditTransaction {
root_txid: u32,
root_fee: u64,
root_weight: u32,
root_vsize: u32,
root_sigops: u32,
cluster_rate: f64,
) -> f64 {
@ -165,6 +172,7 @@ impl AuditTransaction {
if self.ancestors.remove(&root_txid) {
self.ancestor_fee -= root_fee;
self.ancestor_weight -= root_weight;
self.ancestor_vsize -= root_vsize;
self.ancestor_sigops -= root_sigops;
self.calc_new_score();
}

29
backend/rust-gbt/src/gbt.rs
View file

@ -13,9 +13,10 @@ use crate::{
GbtResult, ThreadTransactionsMap, STARTING_CAPACITY,
};
const BLOCK_WEIGHT_UNITS: u32 = 4_000_000;
const MAX_BLOCK_WEIGHT_UNITS: u32 = 4_000_000 - 4_000;
const BLOCK_SIGOPS: u32 = 80_000;
const BLOCK_RESERVED_WEIGHT: u32 = 4_000;
const BLOCK_RESERVED_SIGOPS: u32 = 400;
const MAX_BLOCKS: usize = 8;
type AuditPool = HashMap<u32, AuditTransaction, U32HasherState>;
@ -91,7 +92,7 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap) -> GbtResult {
info!("(i.e. the package rooted in the transaction with the best ancestor score)");
let mut blocks: Vec<Vec<u32>> = Vec::new();
let mut block_weight: u32 = BLOCK_RESERVED_WEIGHT;
let mut block_sigops: u32 = 0;
let mut block_sigops: u32 = BLOCK_RESERVED_SIGOPS;
let mut transactions: Vec<u32> = Vec::with_capacity(STARTING_CAPACITY);
let mut modified: ModifiedQueue = u32priority_queue_with_capacity(STARTING_CAPACITY);
let mut overflow: Vec<u32> = Vec::new();
@ -135,7 +136,7 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap) -> GbtResult {
}
if blocks.len() < (MAX_BLOCKS - 1)
&& ((block_weight + next_tx.ancestor_weight() >= BLOCK_WEIGHT_UNITS)
&& ((block_weight + (4 * next_tx.ancestor_vsize()) >= MAX_BLOCK_WEIGHT_UNITS)
|| (block_sigops + next_tx.ancestor_sigops() > BLOCK_SIGOPS))
{
// hold this package in an overflow list while we check for smaller options
@ -150,7 +151,13 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap) -> GbtResult {
package.push((*ancestor_id, ancestor.ancestors.len()));
}
}
package.sort_unstable_by_key(|a| a.1);
package.sort_unstable_by(|a, b| -> Ordering {
if a.1 == b.1 {
b.0.cmp(&a.0)
} else {
a.1.cmp(&b.1)
}
});
package.push((next_tx.uid, next_tx.ancestors.len()));
let cluster_rate = next_tx.cluster_rate();
@ -176,7 +183,7 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap) -> GbtResult {
// this block is full
let exceeded_package_tries =
failures > 1000 && block_weight > (BLOCK_WEIGHT_UNITS - BLOCK_RESERVED_WEIGHT);
failures > 1000 && block_weight > (MAX_BLOCK_WEIGHT_UNITS - BLOCK_RESERVED_WEIGHT);
let queue_is_empty = mempool_stack.is_empty() && modified.is_empty();
if (exceeded_package_tries || queue_is_empty) && blocks.len() < (MAX_BLOCKS - 1) {
// finalize this block
@ -185,8 +192,8 @@ pub fn gbt(mempool: &mut ThreadTransactionsMap) -> GbtResult {
}
// reset for the next block
transactions = Vec::with_capacity(STARTING_CAPACITY);
block_weight = 4000;
block_sigops = 0;
block_weight = BLOCK_RESERVED_WEIGHT;
block_sigops = BLOCK_RESERVED_SIGOPS;
failures = 0;
// 'overflow' packages didn't fit in this block, but are valid candidates for the next
overflow.reverse();
@ -290,6 +297,7 @@ fn set_relatives(txid: u32, audit_pool: &mut AuditPool) {
let mut total_fee: u64 = 0;
let mut total_weight: u32 = 0;
let mut total_vsize: u32 = 0;
let mut total_sigops: u32 = 0;
for ancestor_id in &ancestors {
@ -298,11 +306,12 @@ fn set_relatives(txid: u32, audit_pool: &mut AuditPool) {
.expect("audit_pool contains all ancestors");
total_fee += ancestor.fee;
total_weight += ancestor.weight;
total_vsize += ancestor.vsize;
total_sigops += ancestor.sigops;
}
if let Some(tx) = audit_pool.get_mut(&txid) {
tx.set_ancestors(ancestors, total_fee, total_weight, total_sigops);
tx.set_ancestors(ancestors, total_fee, total_weight, total_vsize, total_sigops);
}
}
@ -317,6 +326,7 @@ fn update_descendants(
let mut descendant_stack: Vec<u32> = Vec::new();
let root_fee: u64;
let root_weight: u32;
let root_vsize: u32;
let root_sigops: u32;
if let Some(root_tx) = audit_pool.get(&root_txid) {
for descendant_id in &root_tx.children {
@ -327,6 +337,7 @@ fn update_descendants(
}
root_fee = root_tx.fee;
root_weight = root_tx.weight;
root_vsize = root_tx.vsize;
root_sigops = root_tx.sigops;
} else {
return;
@ -335,7 +346,7 @@ fn update_descendants(
if let Some(descendant) = audit_pool.get_mut(&next_txid) {
// remove root tx as ancestor
let old_score =
descendant.remove_root(root_txid, root_fee, root_weight, root_sigops, cluster_rate);
descendant.remove_root(root_txid, root_fee, root_weight, root_vsize, root_sigops, cluster_rate);
// add to priority queue or update priority if score has changed
if descendant.score() < old_score {
descendant.modified = true;

2
backend/src/api/mempool-blocks.ts
View file

@ -657,7 +657,7 @@ class MempoolBlocks {
if (tx.uid !== null && tx.uid !== undefined) {
view.setUint32(offset, tx.uid, false);
view.setFloat64(offset + 4, tx.fee, false);
view.setUint32(offset + 12, (tx.adjustedVsize * 4), false);
view.setUint32(offset + 12, tx.weight, false);
view.setUint32(offset + 16, tx.sigops, false);
view.setFloat64(offset + 20, (tx.adjustedFeePerVsize || tx.feePerVsize), false);
view.setFloat64(offset + 28, (tx.effectiveFeePerVsize || tx.adjustedFeePerVsize || tx.feePerVsize), false);