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Removed FnvHash and transformed the rest to FxHashmap (#39233)

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This should be the final PR for the Hash Function series that is
trivial.

Of note: I decided to transform `HashMapTracedValues<Atom,..>` to use
FxBuildHasher. This is likely not going to improve performance as Atom's
already have a unique u32 that is used as the Hash but it safes a few
bytes for the RandomState that is normally in the HashMap.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Hash function changes should not change functionality, we
slightly decrease the size and unit tests still work.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
This commit is contained in:
Narfinger 2025-09-10 15:34:54 +02:00 • committed by GitHub
parent 726b456120
commit 84465e7768
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55 changed files with 211 additions and 202 deletions
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4
components/constellation/broadcastchannel.rs
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@ -6,15 +6,15 @@ use std::collections::HashMap;
use base::id::BroadcastChannelRouterId;
use constellation_traits::BroadcastChannelMsg;
use fnv::FnvHashMap;
use ipc_channel::ipc::IpcSender;
use log::warn;
use rustc_hash::FxHashMap;
use servo_url::ImmutableOrigin;
#[derive(Default)]
pub(crate) struct BroadcastChannels {
/// A map of broadcast routers to their IPC sender.
routers: FnvHashMap<BroadcastChannelRouterId, IpcSender<BroadcastChannelMsg>>,
routers: FxHashMap<BroadcastChannelRouterId, IpcSender<BroadcastChannelMsg>>,
/// A map of origin to a map of channel name to a list of relevant routers.
channels: HashMap<ImmutableOrigin, HashMap<String, Vec<BroadcastChannelRouterId>>>,