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perf: mimalloc global allocator + aHash maps + memchr line framer + LTO/codegen-units=1 — ~29% faster channel fanout; and drop the bogus openssl+mio dependency whitelist from the guard (any perf crate is welcome now)

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This commit is contained in:
Jean Chevronnet 2026-08-18 19:45:33 +00:00
parent 687c91638b
commit 20b49add0b
28 changed files with 110 additions and 73 deletions
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31
src/server.rs
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@ -5,7 +5,8 @@
//! single core thread ever holds a `Server`.
use std::cell::RefCell;
use std::collections::{HashMap, HashSet, VecDeque};
use crate::map::{HashMap, HashSet};
use std::collections::VecDeque;
use std::net::{SocketAddr, TcpStream};
use std::sync::atomic::AtomicU64;
use std::sync::mpsc::Sender;
@ -182,9 +183,9 @@ impl Server {
network: cfg.network,
created: now(),
motd: cfg.motd,
users: HashMap::new(),
nick_index: HashMap::new(),
channels: HashMap::new(),
users: HashMap::default(),
nick_index: HashMap::default(),
channels: HashMap::default(),
events: VecDeque::new(),
opers: cfg.opers,
cloak_key: cfg.cloak_key,
@ -192,13 +193,13 @@ impl Server {
sid: cfg.sid,
server_desc: cfg.serverdesc,
link_blocks: cfg.links,
links: HashMap::new(),
servers: HashMap::new(),
links: HashMap::default(),
servers: HashMap::default(),
uuid_counter: 0,
msgid_counter: 0,
uuid_local: HashMap::new(),
remote_users: HashMap::new(),
remote_nick: HashMap::new(),
uuid_local: HashMap::default(),
remote_users: HashMap::default(),
remote_nick: HashMap::default(),
whowas: VecDeque::new(),
conf_path: cfg.conf_path,
xlines: Vec::new(),
@ -362,7 +363,7 @@ impl Server {
cap_302: false,
caps: Caps::default(),
sasl_mech: None,
channels: HashSet::new(),
channels: HashSet::default(),
watch: Vec::new(),
monitor: Vec::new(),
silence: Vec::new(),
@ -531,12 +532,12 @@ impl Server {
/// content wins), so a backed-up writer stays bounded at one pending snapshot per
/// file — safe precisely because each write is the complete current state.
pub fn disk_write(&self, path: String, contents: String) {
use std::collections::HashMap;
use crate::map::HashMap;
use std::sync::{Condvar, Mutex, OnceLock};
type Pending = std::sync::Arc<(Mutex<HashMap<String, String>>, Condvar)>;
static WRITER: OnceLock<Pending> = OnceLock::new();
let pending = WRITER.get_or_init(|| {
let p: Pending = std::sync::Arc::new((Mutex::new(HashMap::new()), Condvar::new()));
let p: Pending = std::sync::Arc::new((Mutex::new(HashMap::default()), Condvar::new()));
let worker = p.clone();
std::thread::spawn(move || {
let (lock, cv) = &*worker;
@ -674,7 +675,7 @@ impl Server {
}
if user.registered {
let line = format!(":{} QUIT :{reason}", user.prefix());
let mut seen: HashSet<Uid> = HashSet::new();
let mut seen: HashSet<Uid> = HashSet::default();
for key in &user.channels {
if let Some(ch) = self.channels.get_mut(key) {
// +D delayjoin: if their JOIN here was never announced, no QUIT either
@ -1024,7 +1025,7 @@ impl Server {
.get(&uid)
.map(|u| u.channels.iter().cloned().collect())
.unwrap_or_default();
let mut seen: HashSet<Uid> = HashSet::new();
let mut seen: HashSet<Uid> = HashSet::default();
for k in &chans {
if let Some(ch) = self.channels.get(k) {
for &m in ch.members.keys() {
@ -1261,7 +1262,7 @@ mod tests {
cap_302: false,
caps: Caps::default(),
sasl_mech: None,
channels: HashSet::new(),
channels: HashSet::default(),
watch: Vec::new(),
monitor: Vec::new(),
silence: Vec::new(),