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Constellation can now optionally report memory usage when the page is loaded. (#37151)

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The constellation can now tell the memory reporter to report the memory
to a trace file when a page is loaded.
Additionally, we amend the memory reporter to allow a simple message
where it will report the memory to a tracing provider (at the moment
only OHOS/hitrace is supported but easy extension is possible).

I am not sure if this is the right approach or if the embedder should
decide to have the memory reporting done.

Testing: This does not change functionality of any of the rendering.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
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Narfinger 2025-05-30 19:15:06 +02:00 • committed by GitHub
parent 5580704438
commit 13a980ff22
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6 changed files with 32 additions and 1 deletions
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3
components/shared/constellation/lib.rs
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@ -26,6 +26,7 @@ use euclid::Vector2D;
pub use from_script_message::*;
use ipc_channel::ipc::IpcSender;
use malloc_size_of_derive::MallocSizeOf;
use profile_traits::mem::MemoryReportResult;
use serde::{Deserialize, Serialize};
use servo_url::{ImmutableOrigin, ServoUrl};
pub use structured_data::*;
@ -95,6 +96,8 @@ pub enum EmbedderToConstellationMessage {
/// Evaluate a JavaScript string in the context of a `WebView`. When execution is complete or an
/// error is encountered, a correpsonding message will be sent to the embedding layer.
EvaluateJavaScript(WebViewId, JavaScriptEvaluationId, String),
/// Create a memory report and return it via the ipc sender
CreateMemoryReport(IpcSender<MemoryReportResult>),
}
/// A description of a paint metric that is sent from the Servo renderer to the