Changelog

May 12, 2023 · 22 min read

Author of foyer

2025-05-14

Releases

crate	version
foyer	0.17.2
foyer-common	0.17.2
foyer-memory	0.17.2
foyer-storage	0.17.2
foyer-bench	0.17.2

Changes

Fix disk cache return wrong entry on key hash collision.

2025-05-09

Releases

crate	version
foyer	0.17.1
foyer-common	0.17.1
foyer-memory	0.17.1
foyer-storage	0.17.1
foyer-bench	0.17.1

Changes

Refine load error handling to prevent from panics on disk data corruption.
Derive Partial, Eq for Throttle and IopsCounter.

2025-04-28

Releases

crate	version
foyer	0.17.0
foyer-common	0.17.0
foyer-memory	0.17.0
foyer-storage	0.17.0
foyer-bench	0.17.0

Changes

Refine entry-level properties.
- Packing ephemeral, hint, location into CacheProperties and HybridCacheProperties, use insert_with_properties() and fetch_with_properties() for setting them.
- Migration from foyer < v0.17.0: Repleace .insert_with_hint(..), .insert_ephemeral(..), etc with insert_with_properties(..) and fetch_with_properties(..).
Refine disk cache insertion with entries populated from the disk cache.
- Use an age-based FIFO policy to manager large object disk cache.
- Track the source of in-memory cache entries.
- When an in-memory cache entry is being inserted into the disk cache, the disk cache will determine if to skip it according to its resource and age. Entries populated from the disk cache and are not going to evicted soon will be skipped.
Support flush entries in the in-memory cache to the disk cache on closing the hybrid cache.
- Migration from foyer < v0.17.0: Enable by .with_flush_on_close(true) with the hybrid cache builder.
Refine io throttling.
- Support advanced io throttling by read/write IOPS/throughput, and support count IOs by IO count or by IO count with IO size.
- Migration from foyer < v0.17.0: Please set io throttling for device, instead of using RateLimiterAmissionPicker.
Support request deduplication and one-flight optimization with fetch(..) interface for the disk cache.
- Migration from foyer < v0.17.0: Use .fetch_with_properties(..) API and set the location of HybridCacheProperties to Location::OnDisk.
Miscs:
- Add builder() API for Cache and HybridCache to create builders.
- Opt-out tracing dependency by default, enable it by enabling tracing feature.
- Bump mixtrics to v0.1.

Latest foyer-bench usage:

bench tool for foyer - Hybrid cache for Rust

Usage: foyer-bench [OPTIONS] <--file <FILE>|--dir <DIR>|--no-disk>

Options:
      --no-disk
          Run with in-memory cache compatible mode
  -f, --file <FILE>
          File for disk cache data. Use `DirectFile` as device
  -d, --dir <DIR>
          Directory for disk cache data. Use `DirectFs` as device
      --mem <MEM>
          In-memory cache capacity [default: "1.0 GiB"]
      --disk <DISK>
          Disk cache capacity [default: "1.0 GiB"]
  -t, --time <TIME>
          (s) [default: 60]
      --report-interval <REPORT_INTERVAL>
          (s) [default: 2]
      --w-rate <W_RATE>
          Write rate limit per writer [default: "0 B"]
      --r-rate <R_RATE>
          Read rate limit per reader [default: "0 B"]
      --entry-size-min <ENTRY_SIZE_MIN>
          Min entry size [default: "64.0 KiB"]
      --entry-size-max <ENTRY_SIZE_MAX>
          Max entry size [default: "64.0 KiB"]
      --get-range <GET_RANGE>
          Reader lookup key range [default: 10000]
      --region-size <REGION_SIZE>
          Disk cache region size [default: "64.0 MiB"]
      --flushers <FLUSHERS>
          Flusher count [default: 4]
      --reclaimers <RECLAIMERS>
          Reclaimer count [default: 4]
      --writers <WRITERS>
          Writer count [default: 16]
      --readers <READERS>
          Reader count [default: 16]
      --recover-mode <RECOVER_MODE>
          [default: none] [possible values: none, quiet, strict]
      --recover-concurrency <RECOVER_CONCURRENCY>
          Recover concurrency [default: 16]
      --disk-write-iops <DISK_WRITE_IOPS>
          Disk write iops throttle [default: 0]
      --disk-read-iops <DISK_READ_IOPS>
          Disk read iops throttle [default: 0]
      --disk-write-throughput <DISK_WRITE_THROUGHPUT>
          Disk write throughput throttle [default: "0 B"]
      --disk-read-throughput <DISK_READ_THROUGHPUT>
          Disk read throughput throttle [default: "0 B"]
      --clean-region-threshold <CLEAN_REGION_THRESHOLD>
          `0` means use default [default: 0]
      --shards <SHARDS>
          Shards of both in-memory cache and disk cache indexer [default: 64]
      --metrics
          weigher to enable metrics exporter
      --user-runtime-worker-threads <USER_RUNTIME_WORKER_THREADS>
          Benchmark user runtime worker threads [default: 0]
      --runtime <RUNTIME>
          Dedicated runtime type [default: disabled] [possible values: disabled, unified, separated]
      --runtime-worker-threads <RUNTIME_WORKER_THREADS>
          Dedicated runtime worker threads [default: 0]
      --runtime-max-blocking-threads <RUNTIME_MAX_BLOCKING_THREADS>
          Max threads for blocking io [default: 0]
      --write-runtime-worker-threads <WRITE_RUNTIME_WORKER_THREADS>
          Dedicated runtime for writes worker threads [default: 0]
      --write-runtime-max-blocking-threads <WRITE_RUNTIME_MAX_BLOCKING_THREADS>
          Dedicated runtime for writes Max threads for blocking io [default: 0]
      --read-runtime-worker-threads <READ_RUNTIME_WORKER_THREADS>
          Dedicated runtime for reads worker threads [default: 0]
      --read-runtime-max-blocking-threads <READ_RUNTIME_MAX_BLOCKING_THREADS>
          Dedicated runtime for writes max threads for blocking io [default: 0]
      --compression <COMPRESSION>
          compression algorithm [default: none] [possible values: none, zstd, lz4]
      --engine <ENGINE>
          Disk cache engine [default: large]
      --distribution <DISTRIBUTION>
          Time-series operation distribution [default: none]
      --distribution-zipf-n <DISTRIBUTION_ZIPF_N>
          For `--distribution zipf` only [default: 100]
      --distribution-zipf-s <DISTRIBUTION_ZIPF_S>
          For `--distribution zipf` only [default: 0.5]
      --warm-up <WARM_UP>
          [default: 2]
      --flush
          
      --invalid-ratio <INVALID_RATIO>
          [default: 0.8]
      --eviction <EVICTION>
          [default: lru] [possible values: lru, lfu, fifo, s3fifo]
      --policy <POLICY>
          [default: eviction] [possible values: eviction, insertion]
      --buffer-pool-size <BUFFER_POOL_SIZE>
          [default: "16.0 MiB"]
      --blob-index-size <BLOB_INDEX_SIZE>
          [default: "4.0 KiB"]
      --set-size <SET_SIZE>
          [default: "16.0 KiB"]
      --set-cache-capacity <SET_CACHE_CAPACITY>
          [default: 64]
      --trace-insert <TRACE_INSERT>
          Record insert trace threshold. Only effective with "tracing" feature [default: 1s]
      --trace-get <TRACE_GET>
          Record get trace threshold. Only effective with "tracing" feature [default: 1s]
      --trace-obtain <TRACE_OBTAIN>
          Record obtain trace threshold. Only effective with "tracing" feature [default: 1s]
      --trace-remove <TRACE_REMOVE>
          Record remove trace threshold. Only effective with "tracing" feature [default: 1s]
      --trace-fetch <TRACE_FETCH>
          Record fetch trace threshold. Only effective with "tracing" feature [default: 1s]
      --flush-on-close
          
      --lodc-fifo-probation-ratio <LODC_FIFO_PROBATION_RATIO>
          [default: 0.1]
  -h, --help
          Print help (see more with '--help')
  -V, --version
          Print version

2025-04-22

Releases

crate	version
foyer	0.15.4
foyer-common	0.15.4
foyer-memory	0.15.4
foyer-storage	0.15.4
foyer-bench	0.15.4

Changes

Add metrics for large object disk cache indexer conflicts.

2025-04-11

Releases

crate	version
foyer	0.16.1
foyer-common	0.16.1
foyer-memory	0.16.1
foyer-storage	0.16.1
foyer-bench	0.16.1

Changes

Fix panic when building large object disk cache engine if buffer_pool_size / flushers is not 4K-aligned.
Make CI run on release branches.

2025-04-07

Releases

crate	version
foyer	0.16.0
foyer-common	0.16.0
foyer-memory	0.16.0
foyer-storage	0.16.0
foyer-bench	0.16.0

Changes

Refine the cache key/value serialization and deserializaion.
- Support customized serialization and deserialization.
- Support serialization and deserialization with serde and bincode. (optional)
Make serde and bincode optional, and disabled by default. You can enable it with serde feature.
Reduce verbose warning logs.

2025-03-28

Releases

crate	version
foyer	0.15.3
foyer-common	0.15.3
foyer-memory	0.15.3
foyer-storage	0.15.3
foyer-bench	0.15.3

Changes

Fix lodc flush buffer split condition calculation error.

2025-03-26

Releases

crate	version
foyer	0.15.2
foyer-common	0.15.2
foyer-memory	0.15.2
foyer-storage	0.15.2
foyer-bench	0.15.2

Changes

Mitigate low-priority errors. Refine error handling.

2025-03-25

Releases

crate	version
foyer	0.15.1
foyer-common	0.15.1
foyer-memory	0.15.1
foyer-storage	0.15.1
foyer-bench	0.15.1

Changes

Support either write disk cache on in-memory cache evction or on insertion with HybridCacheBuilder::with_policy().

2025-03-24

Releases

crate	version
foyer	0.15.0
foyer-common	0.15.0
foyer-memory	0.15.0
foyer-storage	0.15.0
foyer-bench	0.15.0

Changes

Support blob file format to speed up disk cache recovery and reduce reclaim overhead.
Make histogram metrics more precise.
Refine redundant codes.
Refine dependencies.

2025-02-08

Releases

crate	version
foyer	0.14.1
foyer-common	0.14.1
foyer-memory	0.14.1
foyer-storage	0.14.1
foyer-bench	0.14.1

Changes

Use tokio-rs/tokio by default as the runtime, use madsim-tokio when madsim configuration is enabled.
Optimize dependencies.

2025-01-14

Releases

crate	version
foyer	0.14.0
foyer-common	0.14.0
foyer-memory	0.14.0
foyer-storage	0.14.0
foyer-bench	0.14.0

Changes

Insert disk cache on in-memory cache eviction, instead of double write on insertion.
Extrace multiple metrics backend support to crate mixtrics.

2024-12-04

Releases

crate	version
foyer	0.13.1
foyer-common	0.13.1
foyer-memory	0.13.1
foyer-storage	0.13.1
foyer-bench	0.13.1

Changes

Refactor cache builders. name field requires Cow<'static, str> instead of &'static str for convenience.

2024-12-02

Releases

crate	version
foyer	0.13.0
foyer-common	0.13.0
foyer-memory	0.13.0
foyer-storage	0.13.0
foyer-bench	0.13.0

Changes

Refine in-memory cache framework:
- Allow "get"/"release"/"entry drop" to acquire read lock or lock-free if the algorithm allows.
- Make most Eviction APIs safe, only acquire unsafe Rust while accessing algorithm managed per-entry state with UnsafeCell.
- Replace the "reinsertion" design with release with real "release last ref" design.
- Rename some APIs.
Refine metrics framework:
- Replace metrics with customized metrics framework to support various metrics backend.
- Implement built-in metrics exporter that adapts to crate prometheus/prometheus-client/opentelemetry.

2024-10-11

Releases

crate	version
foyer	0.12.2
foyer-common	0.12.2
foyer-intrusive	0.12.2
foyer-memory	0.12.2
foyer-storage	0.12.2
foyer-bench	0.12.2

Changes

Revert "Scale shards to 1 when there is not enough capacity". It would be useful sometimes. Just raise the warning.

2024-10-10

Releases

crate	version
foyer	0.12.1
foyer-common	0.12.1
foyer-intrusive	0.12.1
foyer-memory	0.12.1
foyer-storage	0.12.1
foyer-bench	0.12.1

Changes

Downgrade hashbrown to 0.14 to fix build on nightly for projects using hashbrown < 0.15.
Fix build with madsim.
Refine small object disk cache.
Scale shards to 1 when there is not enough capacity.

2024-10-09

Releases

crate	version
foyer	0.12.0
foyer-common	0.12.0
foyer-intrusive	0.12.0
foyer-memory	0.12.0
foyer-storage	0.12.0
foyer-bench	0.12.0

Changes

Align the versions of all components to the same. 📣
Introduce small object disk cache. 🎉
Introduce mixed/large/small storage engine.
Refactor builders for the hybrid cache.
Introduce submit queue size threshold to prevent from channel piling up.
Support jeprof for foyer-bench.
Rename feature "mtrace" to "tracing".

2024-09-25

Releases

crate	version
foyer	0.11.5
foyer-common	0.9.5
foyer-intrusive	0.9.5
foyer-memory	0.7.5
foyer-storage	0.10.5
foyer-bench	0.3.5

Changes

Fix panic on dropping the hybrid cache. #736

2024-09-24

Releases

crate	version
foyer	0.11.4
foyer-common	0.9.4
foyer-intrusive	0.9.4
foyer-memory	0.7.4
foyer-storage	0.10.4
foyer-bench	0.3.4

Changes

Revert pre-serialization design. The insert latency and memory usage would be better for most cases.
Rename with_buffer_threshold to with_buffer_pool_size. The old method is kept but marked as deprecated.
Raise a warn when using DirectFileDevice on within a file system.

2024-09-20

Releases

crate	version
foyer	0.11.3
foyer-common	0.9.3
foyer-intrusive	0.9.3
foyer-memory	0.7.3
foyer-storage	0.10.3
foyer-bench	0.3.3

Changes

Fix panicked by io buffer pool alignment issue.

2024-09-12

Releases

crate	version
foyer	0.11.2
foyer-common	0.9.2
foyer-intrusive	0.9.2
foyer-memory	0.7.2
foyer-storage	0.10.2
foyer-bench	0.3.2

Changes

Support windows (for foyer only).
Bump rust toolchain to 1.81.0.
Expose in-memory cache builder and cache entry.
Reduce page fault and vec growth overhead.
Use bytes size for foyer-bench.
Fix install deps script.

2024-08-31

Releases

crate	version
foyer	0.11.1
foyer-common	0.9.1
foyer-intrusive	0.9.1
foyer-memory	0.7.1
foyer-storage	0.10.1
foyer-bench	0.3.1

Changes

Add metrics for serde.
Refine fetch runtime usage.
Fix unhandled low-layer errors. #674 #677 #679
Implement Default for TokioRuntimeConfig.
Fix typos and format code with unstable features.

2024-08-21

Releases

crate	version
foyer	0.11.0
foyer-common	0.9.0
foyer-intrusive	0.9.0
foyer-memory	0.7.0
foyer-storage	0.10.0
foyer-bench	0.3.0

Changes

Support disk cache on raw block device.
Support fine-grained storage engine runtime configuration.
Enhance performance via reducing page fault.
Refine storage engine framework for future features.
Expose Weighter trait.
Support serde for more configurations.
Update foyer-bench with more fine-grained configurations.
Fix panics with None recover mode.

2024-08-15

Releases

crate	version
foyer	0.10.4
foyer-storage	0.9.3
foyer-bench	0.2.3

Changes

Support serde for recover mode configuration.

2024-08-14

Releases

crate	version
foyer	0.10.2
foyer-storage	0.9.2
foyer-bench	0.2.2

Changes

Fix panic with "none" recovery mode.

2024-07-08

Releases

crate	version
foyer	0.10.1
foyer-common	0.8.1
foyer-intrusive	0.8.1
foyer-memory	0.6.1
foyer-storage	0.9.1
foyer-bench	0.2.1

Changes

Refine write model, make flush buffer threshold configurable to mitigate memory usage spike and OOM.

2024-07-02

Releases

crate	version
foyer	0.10.0
foyer-common	0.8.0
foyer-intrusive	0.8.0
foyer-memory	0.6.0
foyer-storage	0.9.0
foyer-bench	0.2.0

Changes

Introduce tail-based tracing framework with minitrace. Tail-based Tracing Example.
Fix fetch() disk cache refill on in-memory cache miss.
Publish foyer logo!

2024-06-14

Releases

crate	version
foyer	0.9.4
foyer-storage	0.8.5
foyer-bench	0.1.4

Changes

Fix phantom entries after foyer storage recovery. #560
Fix hybrid cache hit metrics with fetch() interface. #563

2024-06-05

Releases

crate	version
foyer	0.9.3
foyer-common	0.7.3
foyer-intrusive	0.7.2
foyer-memory	0.5.2
foyer-storage	0.8.4
foyer-bench	0.1.3

Changes

Hybrid cache fetch() use the dedicated runtime by default if enabled.
Separate fetch() and fetch_with_runtime() interface for in-memory cache.

2024-06-04

Releases

crate	version
foyer-storage	0.8.3

Changes

Fix "invalid argument (code: 22)" on target aarch64.

2024-06-03

Releases

crate	version
foyer	0.9.2
foyer-common	0.7.2
foyer-intrusive	0.7.1
foyer-memory	0.5.1
foyer-storage	0.8.2
foyer-bench	0.1.2

Changes

Support customized cache event listener.

2024-05-31

Releases

crate	version
foyer	0.9.1
foyer-common	0.7.1
foyer-intrusive	0.7.0
foyer-memory	0.5.0
foyer-storage	0.8.1
foyer-bench	0.1.1

Changes

Fix "attempt to subtract with overflow" panic after cloning cache entry. #543.
Fix "assertion failed: base.is_in_indexer()" panic after replacing deposit entry. #547.
Fix setting name for in-memory cache.
Add region related metrics.
Introduce strict_assertions and sanity feature for debugging.
foyer-bench support setting eviction algorithm.
Upgrade metrics to 0.23.
Remove pop() related interface from the in-memory cache.
Refine intrusive data structure implementation.

2024-05-27

Releases

crate	version
foyer	0.9.0
foyer-common	0.7.0
foyer-intrusive	0.6.0
foyer-memory	0.4.0
foyer-storage	0.8.0
foyer-bench	0.1.0

Changes

Refine the storage engine to reduce the overhead and boost the performance.
- Hybrid cache memory overhead reduced by ~50%.
- Hybrid cache operation latency reduced by ~80%.
Replace prometheus with metrics to support more flexible metrics collection.
Introduce foyer-bench to replace the original foyer-storage-bench for better benchmarking.
Fulfill rust docs for public APIs.
Introduce tombstone log for updatable persistent cache.
Reduce unnecessary dependencies.
More details: foyer - Development Roadmap.

2024-04-28

Releases

crate	version
foyer	0.8.9
foyer-common	0.6.4
foyer-memory	0.3.6
foyer-storage	0.7.6
foyer-storage-bench	0.7.5

Changes

feat: Add config to control the recover mode.
feat: Add config to enable/disable direct i/o. (Enabled by default for large entries optimization.)

2024-04-28

Releases

crate	version
foyer	0.8.8
foyer-memory	0.3.5
foyer-storage	0.7.5
foyer-storage-bench	0.7.4

Changes

feat: Impl Debug for HybridCache.
feat: Impl serde, Default for eviction configs.
refactor: Add internal trait EvictionConfig to bound eviction algorithm configs.

2024-04-27

Releases

crate	version
foyer	0.8.7

Changes

Make HybridCache cloneable.

2024-04-27

Releases

crate	version
foyer-memory	0.3.4

Changes

Fix S3FIFO ghost queue.

2024-04-26

Releases

crate	version
foyer-storage	0.7.4

Changes

Fix FsDeviceBuilder on a non-exist directory without capacity given.

2024-04-26

Releases

crate	version
foyer	0.8.6
foyer-common	0.6.3
foyer-intrusive	0.5.3
foyer-memory	0.3.3
foyer-storage	0.7.3
foyer-storage-bench	0.7.3

Changes

Remove unused dependencies.
Remove hakari workspace hack.

2024-04-26

Releases

crate	version
foyer	0.8.5

Changes

Expose EntryState, HybridEntry.
Expose StorageWriter, Metrics, get_metrics_registry, set_metrics_registry.
Expose RangeBoundsExt, BufExt, BufMutExt.
Re-export ahash::RandomState.
Loose entry() args trait bounds.

2024-04-25

Releases

crate	version
foyer	0.8.4

Changes

Expose HybridCacheEntry.

2024-04-25

Releases

crate	version
foyer	0.8.3

Changes

Expose Key, Value, StorageKey, StorageValue traits.

2024-04-24

Releases

crate	version
foyer	0.8.2
foyer-common	0.6.2
foyer-intrusive	0.5.2
foyer-memory	0.3.2
foyer-storage	0.7.2
foyer-storage-bench	0.7.2
foyer-workspace-hack	0.5.2

Changes

Add nightly feature to make it compatible with night toolchain.

2024-04-24

Releases

crate	version
foyer	0.8.1
foyer-common	0.6.1
foyer-intrusive	0.5.1
foyer-memory	0.3.1
foyer-storage	0.7.1
foyer-storage-bench	0.7.1
foyer-workspace-hack	0.5.1

Changes

Add with_flush to enable flush for each io.
Loose MSRV to 1.76 .
Flush the device on store close.

2024-04-23

Releases

crate	version
foyer	0.8.0
foyer-common	0.6.0
foyer-intrusive	0.5.0
foyer-memory	0.3.0
foyer-storage	0.7.0
foyer-storage-bench	0.7.0
foyer-workspace-hack	0.5.0

Changes

Combine in-memory cache and disk cache into HybridCache.
Refine APIs, make them more user-friendly.
Refine Key, Value, StorageKey, StorageValue traits.
Support serde for storage key and value serialization and deserialization.
Loose trait bounds for key and value.
Add configurable ghost queue for S3FIFO.
Fix S3FIFO eviction bugs.
Add more examples.

2024-04-11

Releases

crate	version
foyer	0.7.0
foyer-common	0.5.0
foyer-intrusive	0.4.0
foyer-memory	0.2.0
foyer-storage	0.6.0
foyer-storage-bench	0.6.0
foyer-workspace-hack	0.4.0

Changes

Make foyer compatible with rust stable toolchain (MSRV = 1.77.2). 🎉

2024-04-09

Releases

crate	version
foyer-storage	0.5.1
foyer-memory	0.1.4

Changes

fix: Fix panics on state() for s3fifo entry.
fix: Enable offset_of feature for foyer-storage.

2024-04-08

Releases

crate	version
foyer-intrusive	0.3.1
foyer-memory	0.1.3

Changes

feat: Introduce s3fifo to foyer-memory.
fix: Fix doctest for foyer-intrusive.

2024-03-21

Releases

crate	version
foyer-memory	0.1.2

Changes

fix: foyer-memory export DefaultCacheEventListener.

2024-03-14

Releases

crate	version
foyer-memory	0.1.1

Changes

Make eviction config cloneable.

2024-03-13

Releases

crate	version
foyer-storage-bench	0.5.1

Changes

Fix foyer-storage-bench build with trace feature.

2024-03-12

Releases

crate	version
foyer	0.6.0
foyer-common	0.4.0
foyer-intrusive	0.3.0
foyer-memory	0.1.0
foyer-storage	0.5.0
foyer-storage-bench	0.5.0
foyer-workspace-hack	0.3.0

Changes

Release foyer in-memory cache as crate foyer-memory.
Bump other components with changes.

2023-12-28

Releases

crate	version
foyer	0.5.0
foyer-common	0.3.0
foyer-intrusive	0.2.0
foyer-storage	0.4.0
foyer-storage-bench	0.4.0
foyer-workspace-hack	0.2.0

Changes

Bump rust-toolchain to "nightly-2023-12-26".
Introduce time-series distribution args to bench tool. #253
Fix duplicated insert drop metrics.

2023-12-22

Releases

crate	version
foyer	0.4.0
foyer-storage	0.3.0
foyer-storage-bench	0.3.0
foyer-workspace-hack	0.1.1

Changes

Remove config flusher_buffer_capacity.
Fix benchmark tool cache miss ratio.

2023-12-20

Releases

crate	version
foyer-storage	0.2.2

Changes

Fix metrics for writer dropping.
Add interface insert_async_with_callback and insert_if_not_exists_async_with_callback for callers to get the insert result.

2023-12-18

Releases

crate	version
foyer-storage	0.2.1

Changes

Introduce the entry size histogram, update metrics.

2023-12-18

Releases

crate	version
foyer	0.3.0
foyer-common	0.2.0
foyer-storage	0.2.0
foyer-storage-bench	0.2.0

Changes

Introduce the associated type Cursor for trait Key and Value to reduce unnecessary buffer copy if possible.
Remove the ring buffer and continuum tracker for they are no longer needed.
Update the configuration of the storage engine and the benchmark tool.

2023-11-29

Releases

crate	version
foyer	0.2.0
foyer-common	0.1.0
foyer-intrusive	0.1.0
foyer-storage	0.1.0
foyer-storage-bench	0.1.0
foyer-workspace-hack	0.1.0

Changes

The first version that can be used as file cache.

The write model and the design of storage engine has been switched from CacheLib navy version to the ring buffer version (which was highly inspired by MySQL 8.0 link_buf).

Introduces Store, RuntimeStore, LazyStore to simplify usage. In most cases, RuntimeStore is preferred to use a dedicated tokio runtime to serve foyer to avoid the influence to the user's runtime. If lazy-load is needed, use RuntimeLazyStore instead.

The implementation of foyer is separated into multiple crates. But importing foyer is enough for it re-exports the crates that foyer's user needs.

Brief description about the subcrates:

foyer-common: Provide basic data structures and algorithms.
foyer-intrusive: Provide intrusive containers for implementing eviction lists and collections. Intrusive data structures provide the ability to implement low-cost multi-index data structures, which will be used for the memory cache in future.
foyer-storage: Provide the file cache storage engine and wrappers to simplify the code.
foyer-storage-bench: Runnable benchmark tool for the file cache storage engine.
foyer-workspace-hack: Generated by hakari to prevent building each crate from triggering building from scratch.

2023-05-12

Releases

crate	version
foyer	0.1.0

Changes

Initial version with just basic interfaces.

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