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udp: add experimental io_uring implementation (#131)

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* WIP: add udp uring support

* WIP: fix udp uring address parsing

* WIP: udp uring: resubmit recv when needed

* WIP: udp uring: add OutMessageStorage, send swarm responses

* WIP: udp uring: increase ring entries to 1024

* WIP: udp uring: add constants

* WIP: udp uring: use sqpoll, avoid kernel calls

* WIP: udp uring: disable sqpoll

* WIP: udp uring: use VecDeque for local responses

* udp uring: enable setup_coop_taskrun

* udp uring: add RecvMsgStorage

* udp: improve split of uring and mio implementations

* udp uring: clean up

* udp uring: initial ipv6 support

* udp uring: improve helper structs

* udp uring: clean up, use constants for important data

* udp: share create_socket fn between implementations

* udp uring: improve send buffer free index finding

* udp uring: work on SendBuffers.try_add

* udp uring: split into modules

* udp uring: Rename RecvMsgMultiHelper to RecvHelper

* udp uring: improve SendBuffers

* udp uring: fix copyright attribution in buf_ring module

* udp uring: stop always consuming 100% cpu

* udp uring: clean up

* udp uring: add handle_recv_cqe

* udp uring: move local_responses into SocketWorker

* udp uring: move timeout_timespec into SocketWorker

* Update TODO

* udp: make io-uring optional

* Update TODO

* udp uring: enqueue timeout before sends

* udp uring: move likely empty buffer tracking logic into SendBuffers

* udp uring: improve error handling and logging

* udp uring: keep one timeout submitted at a time

* udp uring: update pending_scrape_valid_until

* udp uring: add second timeout for cleaning

* Update TODO

* udp uring: store resubmittable squeue entries in a Vec

* udp uring: add comment, remove a log statement

* Update TODO

* Update TODO

* udp: io_uring: fall back to mio if io_uring support not recent enough

* udp: uring: add bytes_received statistics

* udp: uring: add bytes_sent statistics

* udp: uring: add more statistics

* Update TODO

* udp: uring: improve SendBuffers code

* udp: uring: remove unneeded squeue sync calls

* udp: uring: replace buf_ring impl with one from tokio-uring

* udp: uring: store ring in TLS so it can be used in Drop impls

* udp: uring: store BufRing in SocketWorker

* udp: uring: silence buf_ring dead code warnings, improve comment

* Update TODO

* udp: uring: improve CurrentRing docs, use anonymous struct field

* udp: uring: improve ring setup

* udp: uring: get ipv6 working

* udp: uring: make ring entry count configurable, use more send entries

* udp: uring: log number of pending responses (info level)

* udp: uring: improve comment on send_buffer_entries calculation

* udp: improve config comments

* udp: uring: add to responses stats when they are confirmed as sent

* Update TODO

* udp: uring: enable IoUring setup_submit_all

* Update README
This commit is contained in:
Joakim Frostegård 2023-03-07 19:01:37 +01:00 • committed by GitHub
parent 6f4ffda1bb
commit 2e67f11caf
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13 changed files with 2315 additions and 428 deletions
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9
aquatic_udp/src/config.rs
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@ -85,8 +85,15 @@ pub struct NetworkConfig {
/// $ sudo sysctl -w net.core.rmem_max=104857600
/// $ sudo sysctl -w net.core.rmem_default=104857600
pub socket_recv_buffer_size: usize,
/// Poll event capacity (mio backend)
pub poll_event_capacity: usize,
/// Poll timeout in milliseconds (mio backend)
pub poll_timeout_ms: u64,
/// Number of ring entries (io_uring backend)
///
/// Will be rounded to next power of two if not already one
#[cfg(feature = "io-uring")]
pub ring_entries: u16,
/// Store this many responses at most for retrying (once) on send failure
///
/// Useful on operating systems that do not provide an udp send buffer,
@ -112,6 +119,8 @@ impl Default for NetworkConfig {
socket_recv_buffer_size: 4096 * 128,
poll_event_capacity: 4096,
poll_timeout_ms: 50,
#[cfg(feature = "io-uring")]
ring_entries: 1024,
resend_buffer_max_len: 0,
}
}