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DC -> Client Optimizations

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This commit is contained in:
Alexey
2026-03-22 15:00:15 +03:00
parent cf82b637d2
commit 0461bc65c6
7 changed files with 190 additions and 60 deletions
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10
src/config/defaults.rs
View File

@@ -29,6 +29,8 @@ const DEFAULT_ME_D2C_FLUSH_BATCH_MAX_FRAMES: usize = 32;
const DEFAULT_ME_D2C_FLUSH_BATCH_MAX_BYTES: usize = 128 * 1024;
const DEFAULT_ME_D2C_FLUSH_BATCH_MAX_DELAY_US: u64 = 500;
const DEFAULT_ME_D2C_ACK_FLUSH_IMMEDIATE: bool = true;
const DEFAULT_ME_QUOTA_SOFT_OVERSHOOT_BYTES: u64 = 64 * 1024;
const DEFAULT_ME_D2C_FRAME_BUF_SHRINK_THRESHOLD_BYTES: usize = 256 * 1024;
const DEFAULT_DIRECT_RELAY_COPY_BUF_C2S_BYTES: usize = 64 * 1024;
const DEFAULT_DIRECT_RELAY_COPY_BUF_S2C_BYTES: usize = 256 * 1024;
const DEFAULT_ME_WRITER_PICK_SAMPLE_SIZE: u8 = 3;
@@ -387,6 +389,14 @@ pub(crate) fn default_me_d2c_ack_flush_immediate() -> bool {
DEFAULT_ME_D2C_ACK_FLUSH_IMMEDIATE
}
pub(crate) fn default_me_quota_soft_overshoot_bytes() -> u64 {
DEFAULT_ME_QUOTA_SOFT_OVERSHOOT_BYTES
}
pub(crate) fn default_me_d2c_frame_buf_shrink_threshold_bytes() -> usize {
DEFAULT_ME_D2C_FRAME_BUF_SHRINK_THRESHOLD_BYTES
}
pub(crate) fn default_direct_relay_copy_buf_c2s_bytes() -> usize {
DEFAULT_DIRECT_RELAY_COPY_BUF_C2S_BYTES
}

14
src/config/hot_reload.rs
View File

@@ -106,6 +106,8 @@ pub struct HotFields {
pub me_d2c_flush_batch_max_bytes: usize,
pub me_d2c_flush_batch_max_delay_us: u64,
pub me_d2c_ack_flush_immediate: bool,
pub me_quota_soft_overshoot_bytes: u64,
pub me_d2c_frame_buf_shrink_threshold_bytes: usize,
pub direct_relay_copy_buf_c2s_bytes: usize,
pub direct_relay_copy_buf_s2c_bytes: usize,
pub me_health_interval_ms_unhealthy: u64,
@@ -225,6 +227,8 @@ impl HotFields {
me_d2c_flush_batch_max_bytes: cfg.general.me_d2c_flush_batch_max_bytes,
me_d2c_flush_batch_max_delay_us: cfg.general.me_d2c_flush_batch_max_delay_us,
me_d2c_ack_flush_immediate: cfg.general.me_d2c_ack_flush_immediate,
me_quota_soft_overshoot_bytes: cfg.general.me_quota_soft_overshoot_bytes,
me_d2c_frame_buf_shrink_threshold_bytes: cfg.general.me_d2c_frame_buf_shrink_threshold_bytes,
direct_relay_copy_buf_c2s_bytes: cfg.general.direct_relay_copy_buf_c2s_bytes,
direct_relay_copy_buf_s2c_bytes: cfg.general.direct_relay_copy_buf_s2c_bytes,
me_health_interval_ms_unhealthy: cfg.general.me_health_interval_ms_unhealthy,
@@ -511,6 +515,9 @@ fn overlay_hot_fields(old: &ProxyConfig, new: &ProxyConfig) -> ProxyConfig {
cfg.general.me_d2c_flush_batch_max_bytes = new.general.me_d2c_flush_batch_max_bytes;
cfg.general.me_d2c_flush_batch_max_delay_us = new.general.me_d2c_flush_batch_max_delay_us;
cfg.general.me_d2c_ack_flush_immediate = new.general.me_d2c_ack_flush_immediate;
cfg.general.me_quota_soft_overshoot_bytes = new.general.me_quota_soft_overshoot_bytes;
cfg.general.me_d2c_frame_buf_shrink_threshold_bytes =
new.general.me_d2c_frame_buf_shrink_threshold_bytes;
cfg.general.direct_relay_copy_buf_c2s_bytes = new.general.direct_relay_copy_buf_c2s_bytes;
cfg.general.direct_relay_copy_buf_s2c_bytes = new.general.direct_relay_copy_buf_s2c_bytes;
cfg.general.me_health_interval_ms_unhealthy = new.general.me_health_interval_ms_unhealthy;
@@ -1030,15 +1037,20 @@ fn log_changes(
|| old_hot.me_d2c_flush_batch_max_bytes != new_hot.me_d2c_flush_batch_max_bytes
|| old_hot.me_d2c_flush_batch_max_delay_us != new_hot.me_d2c_flush_batch_max_delay_us
|| old_hot.me_d2c_ack_flush_immediate != new_hot.me_d2c_ack_flush_immediate
|| old_hot.me_quota_soft_overshoot_bytes != new_hot.me_quota_soft_overshoot_bytes
|| old_hot.me_d2c_frame_buf_shrink_threshold_bytes
!= new_hot.me_d2c_frame_buf_shrink_threshold_bytes
|| old_hot.direct_relay_copy_buf_c2s_bytes != new_hot.direct_relay_copy_buf_c2s_bytes
|| old_hot.direct_relay_copy_buf_s2c_bytes != new_hot.direct_relay_copy_buf_s2c_bytes
{
info!(
"config reload: relay_tuning: me_d2c_frames={} me_d2c_bytes={} me_d2c_delay_us={} me_ack_flush_immediate={} direct_buf_c2s={} direct_buf_s2c={}",
"config reload: relay_tuning: me_d2c_frames={} me_d2c_bytes={} me_d2c_delay_us={} me_ack_flush_immediate={} me_quota_soft_overshoot_bytes={} me_d2c_frame_buf_shrink_threshold_bytes={} direct_buf_c2s={} direct_buf_s2c={}",
new_hot.me_d2c_flush_batch_max_frames,
new_hot.me_d2c_flush_batch_max_bytes,
new_hot.me_d2c_flush_batch_max_delay_us,
new_hot.me_d2c_ack_flush_immediate,
new_hot.me_quota_soft_overshoot_bytes,
new_hot.me_d2c_frame_buf_shrink_threshold_bytes,
new_hot.direct_relay_copy_buf_c2s_bytes,
new_hot.direct_relay_copy_buf_s2c_bytes,
);

13
src/config/load.rs
View File

@@ -533,6 +533,19 @@ impl ProxyConfig {
));
}
if config.general.me_quota_soft_overshoot_bytes > 16 * 1024 * 1024 {
return Err(ProxyError::Config(
"general.me_quota_soft_overshoot_bytes must be within [0, 16777216]".to_string(),
));
}
if !(4096..=16 * 1024 * 1024).contains(&config.general.me_d2c_frame_buf_shrink_threshold_bytes) {
return Err(ProxyError::Config(
"general.me_d2c_frame_buf_shrink_threshold_bytes must be within [4096, 16777216]"
.to_string(),
));
}
if !(4096..=1024 * 1024).contains(&config.general.direct_relay_copy_buf_c2s_bytes) {
return Err(ProxyError::Config(
"general.direct_relay_copy_buf_c2s_bytes must be within [4096, 1048576]"

12
src/config/types.rs
View File

@@ -468,7 +468,7 @@ pub struct GeneralConfig {
pub me_c2me_send_timeout_ms: u64,
/// Bounded wait in milliseconds for routing ME DATA to per-connection queue.
/// `0` keeps legacy no-wait behavior.
/// `0` keeps non-blocking routing; values >0 enable bounded wait for compatibility.
#[serde(default = "default_me_reader_route_data_wait_ms")]
pub me_reader_route_data_wait_ms: u64,
@@ -489,6 +489,14 @@ pub struct GeneralConfig {
#[serde(default = "default_me_d2c_ack_flush_immediate")]
pub me_d2c_ack_flush_immediate: bool,
/// Additional bytes above strict per-user quota allowed in hot-path soft mode.
#[serde(default = "default_me_quota_soft_overshoot_bytes")]
pub me_quota_soft_overshoot_bytes: u64,
/// Shrink threshold for reusable ME->Client frame assembly buffer.
#[serde(default = "default_me_d2c_frame_buf_shrink_threshold_bytes")]
pub me_d2c_frame_buf_shrink_threshold_bytes: usize,
/// Copy buffer size for client->DC direction in direct relay.
#[serde(default = "default_direct_relay_copy_buf_c2s_bytes")]
pub direct_relay_copy_buf_c2s_bytes: usize,
@@ -945,6 +953,8 @@ impl Default for GeneralConfig {
me_d2c_flush_batch_max_bytes: default_me_d2c_flush_batch_max_bytes(),
me_d2c_flush_batch_max_delay_us: default_me_d2c_flush_batch_max_delay_us(),
me_d2c_ack_flush_immediate: default_me_d2c_ack_flush_immediate(),
me_quota_soft_overshoot_bytes: default_me_quota_soft_overshoot_bytes(),
me_d2c_frame_buf_shrink_threshold_bytes: default_me_d2c_frame_buf_shrink_threshold_bytes(),
direct_relay_copy_buf_c2s_bytes: default_direct_relay_copy_buf_c2s_bytes(),
direct_relay_copy_buf_s2c_bytes: default_direct_relay_copy_buf_s2c_bytes(),
me_warmup_stagger_enabled: default_true(),