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rustfs/crates/config/src/constants/runtime.rs
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2025-12-23 20:27:34 +08:00

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2.2 KiB
Rust

// Copyright 2024 RustFS Team
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::MI_B;
// Tokio runtime ENV keys
pub const ENV_WORKER_THREADS: &str = "RUSTFS_RUNTIME_WORKER_THREADS";
pub const ENV_MAX_BLOCKING_THREADS: &str = "RUSTFS_RUNTIME_MAX_BLOCKING_THREADS";
pub const ENV_THREAD_PRINT_ENABLED: &str = "RUSTFS_RUNTIME_THREAD_PRINT_ENABLED";
pub const ENV_THREAD_STACK_SIZE: &str = "RUSTFS_RUNTIME_THREAD_STACK_SIZE";
pub const ENV_THREAD_KEEP_ALIVE: &str = "RUSTFS_RUNTIME_THREAD_KEEP_ALIVE";
pub const ENV_GLOBAL_QUEUE_INTERVAL: &str = "RUSTFS_RUNTIME_GLOBAL_QUEUE_INTERVAL";
pub const ENV_THREAD_NAME: &str = "RUSTFS_RUNTIME_THREAD_NAME";
pub const ENV_MAX_IO_EVENTS_PER_TICK: &str = "RUSTFS_RUNTIME_MAX_IO_EVENTS_PER_TICK";
pub const ENV_RNG_SEED: &str = "RUSTFS_RUNTIME_RNG_SEED";
/// Event polling interval
pub const ENV_EVENT_INTERVAL: &str = "RUSTFS_RUNTIME_EVENT_INTERVAL";
// Default values for Tokio runtime
pub const DEFAULT_WORKER_THREADS: usize = 16;
pub const DEFAULT_MAX_BLOCKING_THREADS: usize = 1024;
pub const DEFAULT_THREAD_PRINT_ENABLED: bool = false;
pub const DEFAULT_THREAD_STACK_SIZE: usize = MI_B; // 1 MiB
pub const DEFAULT_THREAD_KEEP_ALIVE: u64 = 60; // seconds
pub const DEFAULT_GLOBAL_QUEUE_INTERVAL: u32 = 31;
pub const DEFAULT_THREAD_NAME: &str = "rustfs-worker";
pub const DEFAULT_MAX_IO_EVENTS_PER_TICK: usize = 1024;
/// Event polling default (Tokio default 61)
pub const DEFAULT_EVENT_INTERVAL: u32 = 61;
pub const DEFAULT_RNG_SEED: Option<u64> = None; // None means random
/// Threshold for small object seek support in megabytes.
///
/// When an object is smaller than this size, rustfs will provide seek support.
///
/// Default is set to 10MB.
pub const DEFAULT_OBJECT_SEEK_SUPPORT_THRESHOLD: usize = 10 * 1024 * 1024;