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https://github.com/wenyxu/sync-adaptive-radix-tree

An implementation of the Adaptive Radix Tree with Optimistic Lock Coupling.
https://github.com/wenyxu/sync-adaptive-radix-tree

adaptive-radix-tree optimistic-lock-coupling radix-tree

Last synced: 3 months ago
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An implementation of the Adaptive Radix Tree with Optimistic Lock Coupling.

Host: GitHub
URL: https://github.com/wenyxu/sync-adaptive-radix-tree
Owner: WenyXu
License: mit
Created: 2022-10-20T12:15:19.000Z (about 2 years ago)
Default Branch: main
Last Pushed: 2023-12-15T20:24:52.000Z (about 1 year ago)
Last Synced: 2024-06-19T23:15:11.307Z (7 months ago)
Topics: adaptive-radix-tree, optimistic-lock-coupling, radix-tree
Language: Go
Homepage:
Size: 2.73 MB
Stars: 7
Watchers: 2
Forks: 0
Open Issues: 1
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

# Adaptive radix tree Synchronized

This repository provides the implementation of the Adaptive Radix Tree with Optimistic Lock Coupling.

The implementation is based on following papers:

- [The Adaptive Radix Tree: ARTful Indexing for Main-Memory Databases](https://db.in.tum.de/~leis/papers/ART.pdf)
- [The ART of Practical Synchronization](https://dl.acm.org/citation.cfm?id=2933352)

## Benchmark

The benchmark tests are located in [tree_concurrent_test.go](./tree_concurrent_test.go)

`frac_x` means `0.x` read fraction. frac_0 means write-only, frac_10 means read-only.

```bash
// Skip list
BenchmarkSklReadWrite
BenchmarkSklReadWrite/frac_0
BenchmarkSklReadWrite/frac_0-8 2643458 605.3 ns/op
BenchmarkSklReadWrite/frac_1
BenchmarkSklReadWrite/frac_1-8 2917704 475.5 ns/op
BenchmarkSklReadWrite/frac_2
BenchmarkSklReadWrite/frac_2-8 3183054 450.3 ns/op
BenchmarkSklReadWrite/frac_3
BenchmarkSklReadWrite/frac_3-8 3397573 409.4 ns/op
BenchmarkSklReadWrite/frac_4
BenchmarkSklReadWrite/frac_4-8 3857455 388.2 ns/op
BenchmarkSklReadWrite/frac_5
BenchmarkSklReadWrite/frac_5-8 4338092 384.0 ns/op
BenchmarkSklReadWrite/frac_6
BenchmarkSklReadWrite/frac_6-8 5014927 322.1 ns/op
BenchmarkSklReadWrite/frac_7
BenchmarkSklReadWrite/frac_7-8 6169614 306.8 ns/op
BenchmarkSklReadWrite/frac_8
BenchmarkSklReadWrite/frac_8-8 7852905 256.6 ns/op
BenchmarkSklReadWrite/frac_9
BenchmarkSklReadWrite/frac_9-8 10119721 182.2 ns/op
BenchmarkSklReadWrite/frac_10
BenchmarkSklReadWrite/frac_10-8 240735708 5.294 ns/op

// Sync-ART (our implementation)
BenchmarkArtReadWrite
BenchmarkArtReadWrite/frac_0
BenchmarkArtReadWrite/frac_0-8 8110496 182.7 ns/op
BenchmarkArtReadWrite/frac_1
BenchmarkArtReadWrite/frac_1-8 7584531 202.1 ns/op
BenchmarkArtReadWrite/frac_2
BenchmarkArtReadWrite/frac_2-8 7491115 171.5 ns/op
BenchmarkArtReadWrite/frac_3
BenchmarkArtReadWrite/frac_3-8 9471957 147.1 ns/op
BenchmarkArtReadWrite/frac_4
BenchmarkArtReadWrite/frac_4-8 10404744 139.5 ns/op
BenchmarkArtReadWrite/frac_5
BenchmarkArtReadWrite/frac_5-8 11536880 149.2 ns/op
BenchmarkArtReadWrite/frac_6
BenchmarkArtReadWrite/frac_6-8 14883390 106.3 ns/op
BenchmarkArtReadWrite/frac_7
BenchmarkArtReadWrite/frac_7-8 12550774 103.6 ns/op
BenchmarkArtReadWrite/frac_8
BenchmarkArtReadWrite/frac_8-8 18014038 85.53 ns/op
BenchmarkArtReadWrite/frac_9
BenchmarkArtReadWrite/frac_9-8 28922254 62.25 ns/op
BenchmarkArtReadWrite/frac_10
BenchmarkArtReadWrite/frac_10-8 164754861 7.134 ns/op

// Map with sync.Mutex
BenchmarkReadWriteMap
BenchmarkReadWriteMap/frac_0
BenchmarkReadWriteMap/frac_0-8 2181128 569.5 ns/op
BenchmarkReadWriteMap/frac_1
BenchmarkReadWriteMap/frac_1-8 2656879 475.6 ns/op
BenchmarkReadWriteMap/frac_2
BenchmarkReadWriteMap/frac_2-8 3409819 415.9 ns/op
BenchmarkReadWriteMap/frac_3
BenchmarkReadWriteMap/frac_3-8 3728640 398.0 ns/op
BenchmarkReadWriteMap/frac_4
BenchmarkReadWriteMap/frac_4-8 3700561 396.7 ns/op
BenchmarkReadWriteMap/frac_5
BenchmarkReadWriteMap/frac_5-8 3923648 387.9 ns/op
BenchmarkReadWriteMap/frac_6
BenchmarkReadWriteMap/frac_6-8 4845210 354.7 ns/op
BenchmarkReadWriteMap/frac_7
BenchmarkReadWriteMap/frac_7-8 4749722 297.4 ns/op
BenchmarkReadWriteMap/frac_8
BenchmarkReadWriteMap/frac_8-8 6310018 271.9 ns/op
BenchmarkReadWriteMap/frac_9
BenchmarkReadWriteMap/frac_9-8 8999284 235.0 ns/op
BenchmarkReadWriteMap/frac_10
BenchmarkReadWriteMap/frac_10-8 8761596 137.3 ns/op

// Sync.Map
BenchmarkReadWriteSyncMap
BenchmarkReadWriteSyncMap/frac_0
BenchmarkReadWriteSyncMap/frac_0-8 1378032 764.8 ns/op
BenchmarkReadWriteSyncMap/frac_1
BenchmarkReadWriteSyncMap/frac_1-8 1484005 749.5 ns/op
BenchmarkReadWriteSyncMap/frac_2
BenchmarkReadWriteSyncMap/frac_2-8 1923976 675.5 ns/op
BenchmarkReadWriteSyncMap/frac_3
BenchmarkReadWriteSyncMap/frac_3-8 1898367 666.8 ns/op
BenchmarkReadWriteSyncMap/frac_4
BenchmarkReadWriteSyncMap/frac_4-8 2078604 671.0 ns/op
BenchmarkReadWriteSyncMap/frac_5
BenchmarkReadWriteSyncMap/frac_5-8 1937666 689.1 ns/op
BenchmarkReadWriteSyncMap/frac_6
BenchmarkReadWriteSyncMap/frac_6-8 1850360 655.9 ns/op
BenchmarkReadWriteSyncMap/frac_7
BenchmarkReadWriteSyncMap/frac_7-8 1910458 689.3 ns/op
BenchmarkReadWriteSyncMap/frac_8
BenchmarkReadWriteSyncMap/frac_8-8 1982641 672.2 ns/op
BenchmarkReadWriteSyncMap/frac_9
BenchmarkReadWriteSyncMap/frac_9-8 2560873 521.2 ns/op
BenchmarkReadWriteSyncMap/frac_10
BenchmarkReadWriteSyncMap/frac_10-8 149435343 7.603 ns/op

// Sync-ART (our implementation)
BenchmarkArtConcurrentInsert
BenchmarkArtConcurrentInsert-8 6504886 171.3 ns/op

// Sync-ART (another implementation)
BenchmarkAnotherArtConcurrentInsert
BenchmarkAnotherArtConcurrentInsert-8 7657372 195.6 ns/op

// Btree
BenchmarkBtreeConcurrentInsert
BenchmarkBtreeConcurrentInsert-8 1502853 993.1 ns/op
```