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

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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@ -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}");