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Make image decoding thread pool the size of the system's CPUs (#31585)

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eri 2024-03-08 16:31:17 +01:00 • committed by GitHub
parent 43f44965cd
commit 48f9db9bc5
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1 changed files with 9 additions and 2 deletions
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11
components/net/image_cache.rs
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@ -4,8 +4,9 @@
use std::collections::hash_map::Entry::{Occupied, Vacant}; use std::collections::hash_map::Entry::{Occupied, Vacant};
use std::collections::HashMap; use std::collections::HashMap;
use std::mem; use std::num::NonZeroUsize;
use std::sync::{Arc, Mutex}; use std::sync::{Arc, Mutex};
use std::{mem, thread};
use embedder_traits::resources::{self, Resource}; use embedder_traits::resources::{self, Resource};
use imsz::imsz_from_reader; use imsz::imsz_from_reader;
@ -427,6 +428,12 @@ impl ImageCache for ImageCacheImpl {
debug!("New image cache"); debug!("New image cache");
let rippy_data = resources::read_bytes(Resource::RippyPNG); let rippy_data = resources::read_bytes(Resource::RippyPNG);
// Uses an estimate of the system cpus to decode images
// See https://doc.rust-lang.org/stable/std/thread/fn.available_parallelism.html
// If no information can be obtained about the system, uses 4 threads as a default
let thread_count = thread::available_parallelism()
.unwrap_or(NonZeroUsize::new(4).unwrap())
.get();
ImageCacheImpl { ImageCacheImpl {
store: Arc::new(Mutex::new(ImageCacheStore { store: Arc::new(Mutex::new(ImageCacheStore {
@ -436,7 +443,7 @@ impl ImageCache for ImageCacheImpl {
placeholder_url: ServoUrl::parse("chrome://resources/rippy.png").unwrap(), placeholder_url: ServoUrl::parse("chrome://resources/rippy.png").unwrap(),
webrender_api: webrender_api, webrender_api: webrender_api,
})), })),
thread_pool: CoreResourceThreadPool::new(16), thread_pool: CoreResourceThreadPool::new(thread_count),
} }
} }