Add changelog for v0.1.0 (#279)

CHANGELOG.md

@@ -6,11 +6,129 @@ and this project will adhere to [Semantic Versioning](http://semver.org/spec/v2.
 
 ## Unreleased
 
+## [0.1.0] - 2021-06-03
+
+[0.1.0]: https://github.com/dgraph-io/ristretto/compare/v0.1.0..v0.0.3
+This release contains bug fixes and improvements to Ristretto. It also contains
+major updates to the z package. The z package contains types such as Tree (B+
+tree), Buffer, Mmap file, etc. All these types are used in Badger and Dgraph to
+improve performance and reduce memory requirements.
+
 ### Changed
+- Make item public. Add a new onReject call for rejected items. (#180)
 
 ### Added
+- Use z.Buffer backing for B+ tree (#268)
+- expose GetTTL function (#270)
+- docs(README): Ristretto is production-ready. (#267)
+- Add IterateKV (#265)
+- feat(super-flags): Add GetPath method in superflags (#258)
+- add GetDuration to SuperFlag (#248)
+- add Has, GetFloat64, and GetInt64 to SuperFlag (#247)
+- move SuperFlag to Ristretto (#246)
+- add SuperFlagHelp tool to generate flag help text (#251)
+- allow empty defaults in SuperFlag (#254)
+- add mmaped b+ tree (#207)
+- Add API to allow the MaxCost of an existing cache to be updated. (#200)
+- Add OnExit handler which can be used for manual memory management (#183)
+- Add life expectancy histogram (#182)
+- Add mechanism to wait for items to be processed. (#184)
 
 ### Fixed
+- change expiration type from int64 to time.Time (#277)
+- fix(buffer): make buffer capacity atleast defaultCapacity (#273)
+- Fixes for z.PersistentTree (#272)
+- Initialize persistent tree correctly (#271)
+- use xxhash v2 (#266)
+- update comments to correctly reflect counter space usage (#189)
+- enable riscv64 builds (#264)
+- Switch from log to glog (#263)
+- Use Fibonacci for latency numbers
+- cache: fix race when clearning a cache (#261)
+- Check for keys without values in superflags (#259)
+- chore(perf): using tags instead of runtime callers to improve the performance of leak detection (#255)
+- fix(Flags): panic on user errors (#256)
+- fix SuperFlagHelp newline (#252)
+- fix(arm): Fix crashing under ARMv6 due to memory mis-alignment (#239)
+- Fix incorrect unit test coverage depiction (#245)
+- chore(histogram): adding percentile in histogram (#241)
+- fix(windows): use filepath instead of path (#244)
+- fix(MmapFile): Close the fd before deleting the file (#242)
+- Fixes CGO_ENABLED=0 compilation error (#240)
+- fix(build): fix build on non-amd64 architectures (#238)
+- fix(b+tree): Do not double the size of btree (#237)
+- fix(jemalloc): Fix the stats of jemalloc (#236)
+- Don't print stuff, only return strings.
+- Bring memclrNoHeapPointers to z (#235)
+- increase number of buffers from 32 to 64 in allocator (#234)
+- Set minSize to 1MB.
+- Opt(btree): Use Go memory instead of mmap files
+- Opt(btree): Lightweight stats calculation
+- Put padding internally to z.Buffer
+- Chore(z): Add SetTmpDir API to set the temp directory (#233)
+- Add a BufferFrom
+- Bring z.Allocator and z.AllocatorPool back
+- Fix(z.Allocator): Make Allocator use Go memory
+- Updated ZeroOut to use a simple for loop.  (#231)
+- Add concurrency back
+- Add a test to check concurrency of Allocator.
+- Fix(buffer): Expose padding by z.Buffer's APIs and fix test (#222)
+- AllocateSlice should Truncate if the file is not big enough (#226)
+- Zero out allocations for structs now that we're reusing Allocators.
+- Fix the ristretto substring
+- Deal with nil z.AllocatorPool
+- Create an AllocatorPool class.
+- chore(btree): clean NewTree API (#225)
+- fix(MmapFile): Don't error out if fileSize > sz (#224)
+- feat(btree): allow option to reset btree and mmaping it to specified file. (#223)
+- Use mremap on Linux instead of munmap+mmap (#221)
+- Reuse pages in B+ tree (#220)
+- fix(allocator): make nil allocator return go byte slice (#217)
+- fix(buffer): Make padding internal to z.buffer (#216)
+- chore(buffer): add a parent directory field in z.Buffer (#215)
+- Make Allocator concurrent
+- Fix infinite loop in allocator (#214)
+- Add trim func
+- Use allocator pool. Turn off freelist.
+- Add freelists to Allocator to reuse.
+- make DeleteBelow delete values that are less than lo (#211)
+- Avoid an unnecessary Load procedure in IncrementOffset.
+- Add Stats method in Btree.
+- chore(script): fix local test script (#210)
+- fix(btree): Increase buffer size if needed. (#209)
+- chore(btree): add occupancy ratio, search benchmark and compact bug fix (#208)
+- Add licenses, remove prints, and fix a bug in compact
+- Add IncrementOffset API for z.buffers (#206)
+- Show count when printing histogram (#201)
+- Zbuffer: Add LenNoPadding and make padding 8 bytes (#204)
+- Allocate Go memory in case allocator is nil.
+- Add leak detection via leak build flag and fix a leak during cache.Close.
+- Add some APIs for allocator and buffer
+- Sync before truncation or close.
+- Handle nil MmapFile for Sync.
+- Public methods must not panic after Close() (#202)
+- Check for RD_ONLY correctly.
+- Modify MmapFile APIs
+- Add a bunch of APIs around MmapFile
+- Move APIs for mmapfile creation over to z package.
+- Add ZeroOut func
+- Add SliceOffsets
+- z: Add TotalSize method on bloom filter (#197)
+- Add Msync func
+- Buffer: Use 256 GB mmap size instead of MaxInt64 (#198)
+- Add a simple test to check next2Pow
+- Improve memory performance (#195)
+- Have a way to automatically mmap a growing buffer (#196)
+- Introduce Mmapped buffers and Merge Sort (#194)
+- Add a way to access an allocator via reference.
+- Use jemalloc.a to ensure compilation with the Go binary
+- Fix up a build issue with ReadMemStats
+- Add ReadMemStats function (#193)
+- Allocator helps allocate memory to be used by unsafe structs (#192)
+- Improve histogram output
+- Move Closer from y to z (#191)
+- Add histogram.Mean() method (#188)
+- Introduce Calloc: Manual Memory Management via jemalloc (#186)
 
 ## [0.0.3] - 2020-07-06