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constellation: Use FnvHashMap for hashmaps that use ids as keys (#39106)

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FNV is faster for hashing less than 16 bytes of data and the
cryptographic properties of the default HashMap are not needed for the
various ids.

Testing: This does not change functionality.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
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Narfinger 2025-09-03 20:15:19 +02:00 • committed by GitHub
parent 0ae9ee28d5
commit 5c7ea4bdee
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19 changed files with 71 additions and 54 deletions
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3
components/script/dom/globalscope.rs
View file

@ -27,6 +27,7 @@ use crossbeam_channel::Sender;
use devtools_traits::{PageError, ScriptToDevtoolsControlMsg};
use dom_struct::dom_struct;
use embedder_traits::{EmbedderMsg, JavaScriptEvaluationError, ScriptToEmbedderChan};
use fnv::FnvHashMap;
use fonts::FontContext;
use ipc_channel::ipc::{self, IpcSender};
use ipc_channel::router::ROUTER;
@ -561,7 +562,7 @@ impl MessageListener {
};
let mut succeeded = vec![];
let mut failed = HashMap::new();
let mut failed = FnvHashMap::default();
for (id, info) in ports.into_iter() {
if global.is_managing_port(&id) {

3
components/script/script_thread.rs
View file

@ -55,6 +55,7 @@ use embedder_traits::{
};
use euclid::Point2D;
use euclid::default::Rect;
use fnv::FnvHashMap;
use fonts::{FontContext, SystemFontServiceProxy};
use headers::{HeaderMapExt, LastModified, ReferrerPolicy as ReferrerPolicyHeader};
use http::header::REFRESH;
@ -1943,7 +1944,7 @@ impl ScriptThread {
fn handle_set_scroll_states(
&self,
pipeline_id: PipelineId,
scroll_states: HashMap<ExternalScrollId, LayoutVector2D>,
scroll_states: FnvHashMap<ExternalScrollId, LayoutVector2D>,
) {
let Some(window) = self.documents.borrow().find_window(pipeline_id) else {
warn!("Received scroll states for closed pipeline {pipeline_id}");