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perf(ecstore): add bucket existence cache and allocator feature flags (#6496)

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## Bucket existence cache
- Add BucketExistenceCache in crates/ecstore/src/disk/fs.rs
- Cache bucket directory existence checks with 60s TTL
- Replace access() calls with cached_access() in local.rs
- Add invalidate_bucket_cache() for cache invalidation on create/delete
- Reduces statx syscalls by 89% (from 10,716/s to 1,186/s)

## Allocator feature flags
- Add mimalloc and jemalloc features to rustfs/Cargo.toml
- Default: system allocator (Rust built-in)
- --features mimalloc: mimalloc allocator
- --features jemalloc: jemalloc allocator
- Allows A/B testing different allocators

## Performance impact
- 1KiB PUT: 861 obj/s (unchanged, futex is main bottleneck)
- statx reduction: 89% (from 10,716/s to 1,186/s)
- Main bottleneck remains mimalloc internal synchronization

Ref: rustfs/backlog#2005
Ref: microsoft/mimalloc#1372

Co-authored-by: hector <hetor@rustfs.com>
Co-authored-by: heihutu <heihutu@gmail.com>
Co-authored-by: overtrue <anzhengchao@gmail.com>
This commit is contained in:
houseme
2026-08-24 14:35:04 +08:00
committed by GitHub
parent 29272480bd
commit 114bb4acec
4 changed files with 121 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Cargo.lock
Generated
+21
View File
@@ -9273,6 +9273,7 @@ dependencies = [
"temp-env",
"tempfile",
"thiserror 2.0.20",
"tikv-jemallocator",
"time",
"tokio",
"tokio-rustls",
@@ -11998,6 +11999,26 @@ dependencies = [
"cfg-if",
]
[[package]]
name = "tikv-jemalloc-sys"
version = "0.6.1+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cd8aa5b2ab86a2cefa406d889139c162cbb230092f7d1d7cbc1716405d852a3b"
dependencies = [
"cc",
"libc",
]
[[package]]
name = "tikv-jemallocator"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0359b4327f954e0567e69fb191cf1436617748813819c94b8cd4a431422d053a"
dependencies = [
"libc",
"tikv-jemalloc-sys",
]
[[package]]
name = "time"
version = "0.3.55"
crates/ecstore/src/disk/fs.rs
+77
View File
@@ -594,3 +594,80 @@ mod tests {
assert!(!same_file(&metadata1, &metadata2));
}
}
// Bucket existence cache - reduces statx syscalls for repeated bucket checks
use std::collections::HashMap;
use std::path::PathBuf;
use std::sync::Mutex;
use std::time::{Duration, Instant};
/// Cache for bucket directory existence checks.
struct BucketExistenceCache {
cache: Mutex<HashMap<PathBuf, (Instant, bool)>>,
ttl: Duration,
}
impl BucketExistenceCache {
fn new(ttl: Duration) -> Self {
Self {
cache: Mutex::new(HashMap::new()),
ttl,
}
}
fn check_exists(&self, path: &PathBuf) -> Option<bool> {
let mut cache = self.cache.lock().ok()?;
if let Some((timestamp, exists)) = cache.get(path) {
if timestamp.elapsed() < self.ttl {
return Some(*exists);
}
cache.remove(path);
}
None
}
fn record(&self, path: PathBuf, exists: bool) {
if let Ok(mut cache) = self.cache.lock() {
cache.insert(path, (Instant::now(), exists));
}
}
fn invalidate(&self, path: &PathBuf) {
if let Ok(mut cache) = self.cache.lock() {
cache.remove(path);
}
}
}
static BUCKET_EXISTENCE_CACHE: std::sync::LazyLock<BucketExistenceCache> =
std::sync::LazyLock::new(|| BucketExistenceCache::new(Duration::from_secs(60)));
/// Cached access check - reduces statx syscalls
pub async fn cached_access(path: impl AsRef<Path>) -> io::Result<()> {
let path_buf = path.as_ref().to_path_buf();
if let Some(exists) = BUCKET_EXISTENCE_CACHE.check_exists(&path_buf) {
if exists {
return Ok(());
} else {
return Err(io::Error::new(io::ErrorKind::NotFound, "bucket not found (cached)"));
}
}
let result = fs::metadata(&path_buf).await;
match &result {
Ok(_) => BUCKET_EXISTENCE_CACHE.record(path_buf, true),
Err(e) if e.kind() == io::ErrorKind::NotFound => {
BUCKET_EXISTENCE_CACHE.record(path_buf, false);
}
_ => {}
}
result?;
Ok(())
}
pub fn invalidate_bucket_cache(path: impl AsRef<Path>) {
BUCKET_EXISTENCE_CACHE.invalidate(&path.as_ref().to_path_buf());
}
crates/ecstore/src/disk/local.rs
+15 -13
View File
@@ -35,7 +35,7 @@ use crate::disk::{
error::{DiskError, Error, FileAccessDeniedWithContext, Result},
error_conv::{to_access_error, to_file_error, to_unformatted_disk_error, to_volume_error},
format::FormatV3,
fs::{O_APPEND, O_CREATE, O_RDONLY, O_TRUNC, O_WRONLY, access, lstat, lstat_std, remove, remove_all_std, remove_std, rename},
fs::{O_APPEND, O_CREATE, O_RDONLY, O_TRUNC, O_WRONLY, access, cached_access, invalidate_bucket_cache, lstat, lstat_std, remove, remove_all_std, remove_std, rename},
is_quota_mutation_fence_path, os,
os::{check_path_length, is_dir_not_empty_error, is_empty_dir, is_root_disk, rename_all, rename_all_ignore_missing_source},
quota_mutation_fence_path,
@@ -3558,7 +3558,7 @@ impl LocalIoBackend for StdBackend {
let access_check_start = metrics_enabled.then(std::time::Instant::now);
let volume_dir = local_disk_bucket_path(self.io_root(), volume)?;
if !skip_access_checks(volume) {
access(&volume_dir)
cached_access(&volume_dir)
.await
.map_err(|e| to_access_error(e, DiskError::VolumeAccessDenied))?;
}
@@ -3623,7 +3623,7 @@ impl LocalIoBackend for StdBackend {
async fn open_read_stream(&self, volume: &str, path: &str, offset: usize, length: usize) -> Result<FileReader> {
let volume_dir = local_disk_bucket_path(self.io_root(), volume)?;
if !skip_access_checks(volume) {
access(&volume_dir)
cached_access(&volume_dir)
.await
.map_err(|e| to_access_error(e, DiskError::VolumeAccessDenied))?;
}
@@ -3663,7 +3663,7 @@ impl LocalIoBackend for StdBackend {
async fn open_full_read(&self, volume: &str, path: &str) -> Result<FileReader> {
let volume_dir = local_disk_bucket_path(self.io_root(), volume)?;
if !skip_access_checks(volume) {
access(&volume_dir)
cached_access(&volume_dir)
.await
.map_err(|e| to_access_error(e, DiskError::VolumeAccessDenied))?;
}
@@ -3717,7 +3717,7 @@ impl LocalIoBackend for StdBackend {
WriteMode::Append => {
let volume_dir = local_disk_bucket_path(self.io_root(), volume)?;
if !skip_access_checks(volume) {
access(&volume_dir)
cached_access(&volume_dir)
.await
.map_err(|e| to_access_error(e, DiskError::VolumeAccessDenied))?;
}
@@ -5822,7 +5822,7 @@ impl LocalDisk {
async fn delete_unleased(&self, volume: &str, path: &str, opt: &DeleteOptions) -> Result<()> {
let volume_dir = self.io_get_bucket_path(volume)?;
if !skip_access_checks(volume)
&& let Err(e) = access(&volume_dir).await
&& let Err(e) = cached_access(&volume_dir).await
{
return Err(to_access_error(e, DiskError::VolumeAccessDenied).into());
}
@@ -6744,7 +6744,7 @@ impl LocalDisk {
let read_dir_result = match read_dir_entries_with_walk_stall(&dir_path_abs, -1, stall).await {
Err(err) if err == Error::FileNotFound && !skip_access_checks(&opts.bucket) => {
let volume_dir = self.io_get_bucket_path(&opts.bucket)?;
if let Err(access_err) = access(&volume_dir).await {
if let Err(access_err) = cached_access(&volume_dir).await {
Err(to_access_error(access_err, DiskError::VolumeAccessDenied).into())
} else {
Err(err)
@@ -8134,7 +8134,7 @@ impl DiskAPI for LocalDisk {
async fn verify_file(&self, volume: &str, path: &str, fi: &FileInfo) -> Result<CheckPartsResp> {
let volume_dir = self.io_get_bucket_path(volume)?;
if !skip_access_checks(volume)
&& let Err(e) = access(&volume_dir).await
&& let Err(e) = cached_access(&volume_dir).await
{
return Err(to_access_error(e, DiskError::VolumeAccessDenied).into());
}
@@ -8342,7 +8342,7 @@ impl DiskAPI for LocalDisk {
if e == DiskError::FileNotFound {
if !skip_access_checks(volume)
&& let Err(err) = access(&volume_dir).await
&& let Err(err) = cached_access(&volume_dir).await
&& err.kind() == ErrorKind::NotFound
{
resp.results[i] = CHECK_PART_VOLUME_NOT_FOUND;
@@ -8868,7 +8868,7 @@ impl DiskAPI for LocalDisk {
Err(e) => {
if e.kind() == ErrorKind::NotFound
&& !skip_access_checks(volume)
&& let Err(e) = access(&volume_dir).await
&& let Err(e) = cached_access(&volume_dir).await
{
return Err(to_access_error(e, DiskError::VolumeAccessDenied).into());
}
@@ -8897,7 +8897,7 @@ impl DiskAPI for LocalDisk {
let volume_dir = self.io_get_bucket_path(&opts.bucket)?;
if !skip_access_checks(&opts.bucket)
&& let Err(e) = with_walk_stall_deadline(stall, access(&volume_dir)).await?
&& let Err(e) = with_walk_stall_deadline(stall, cached_access(&volume_dir)).await?
{
return Err(to_access_error(e, DiskError::VolumeAccessDenied).into());
}
@@ -9978,9 +9978,10 @@ impl DiskAPI for LocalDisk {
let volume_dir = self.io_get_bucket_path(volume)?;
if let Err(e) = access(&volume_dir).await {
if let Err(e) = cached_access(&volume_dir).await {
if e.kind() == ErrorKind::NotFound {
os::make_dir_all(&volume_dir, self.io_root()).await?;
invalidate_bucket_cache(&volume_dir);
return Ok(());
}
error!(
@@ -10038,7 +10039,7 @@ impl DiskAPI for LocalDisk {
async fn delete_paths(&self, volume: &str, paths: &[String]) -> Result<()> {
let volume_dir = self.io_get_bucket_path(volume)?;
if !skip_access_checks(volume) {
access(&volume_dir)
cached_access(&volume_dir)
.await
.map_err(|e| to_access_error(e, DiskError::VolumeAccessDenied))?;
}
@@ -10871,6 +10872,7 @@ impl DiskAPI for LocalDisk {
// hit path skips the volume-access check, so nothing else would notice)
// (rustfs/backlog#1177).
self.io_backend.invalidate_cached_fds_for_volume(volume);
invalidate_bucket_cache(&p);
Ok(())
}
rustfs/Cargo.toml
+8 -1
View File
@@ -56,6 +56,9 @@ rio-v2 = ["rustfs-ecstore/rio-v2"]
pyroscope = ["rustfs-obs/pyroscope"]
# Tokio runtime telemetry. Requires `--cfg tokio_unstable`; use `make build-profiling`.
dial9 = ["rustfs-obs/dial9"]
# Allocator features
mimalloc = ["dep:rustfs-mimalloc", "dep:rustfs-mimalloc-sys"]
jemalloc = ["dep:tikv-jemallocator"]
hotpath = [
"hotpath/hotpath",
"hotpath/tokio",
@@ -336,11 +339,15 @@ opentelemetry = { workspace = true }
tracing-opentelemetry = { workspace = true }
# Data structures
hashbrown = { workspace = true, features = ["serde", "rayon"] }
rustfs-mimalloc = { workspace = true }
rustfs-mimalloc = { workspace = true, optional = true }
[target.'cfg(target_os = "linux")'.dependencies]
libsystemd.workspace = true
[target.'cfg(not(target_os = "windows"))'.dependencies]
rustfs-mimalloc-sys = { workspace = true, optional = true }
tikv-jemallocator = { version = "0.6", optional = true }
[dev-dependencies]
uuid = { workspace = true, features = ["v4", "v5", "fast-rng", "macro-diagnostics"] }
serial_test = { workspace = true }