lzsgo

lzsgo, converts OpenConnect's LZS library, pure golang code, good performance.

Installation

go get github.com/lanrenwo/lzsgo

How to use

package main

import (
	"bytes"
	"fmt"
	"strings"

	"github.com/lanrenwo/lzsgo"
)

func main() {
	var (
		n   int
		err error
	)
	s := "hello world"
	src := []byte(strings.Repeat(s, 50))

	comprBuf := make([]byte, 2048)
	n, err = lzsgo.Compress(src, comprBuf)
	if err != nil {
		fmt.Printf("Compress failed: %s", err)
		return
	}

	unprBuf := make([]byte, 2048)
	n, err = lzsgo.Uncompress(comprBuf[:n], unprBuf)
	if err != nil {
		fmt.Printf("Uncompress failed: %s", err)
		return
	}

	if !bytes.Equal(src, unprBuf[:n]) {
		fmt.Printf("Compress and uncompress data not equal")
		return
	}

	fmt.Println("ok")
}

Benchmarks

cpu: Intel(R) Xeon(R) CPU E5-2603 v4 @ 1.70GHz

1. Lzsc: LZS CGO Version
2. Lz4: LZ4 compression and decompression in pure Go
3. Lzsgo：LZS pure Go Version

No.	Lzsc (µs)	Lz4 (µs)	Lzsgo (µs)
1	16.259	21.271	37.199
2	16.509	32.02	26.146
3	16.466	20.822	36.489
4	16.478	32.43	26.209
5	16.228	21.226	37.17
6	16.419	21.225	26.805
7	11.442	15.693	18.748
8	18.105	21.741	75.763
9	16.379	31.703	26.084
10	16.787	21.008	49.658
11	17.976	23.757	42.22
12	16.916	21.491	26.831
13	16.459	21.363	26.833
14	26.699	21.253	26.305
15	16.324	27.265	26.789
16	16.5	21.378	26.557
17	16.739	21.267	60.373
18	13.809	19.062	22.715
19	16.473	21.606	26.615
20	16.626	21.128	26.788
21	16.233	21.182	26.631
22	16.261	21.1	26.697
23	16.482	21.321	26.77
24	16.306	21.285	26.621
25	29.922	57.146	45.37
26	49.096	45.1	49.116
27	16.551	21.653	26.575
28	16.791	21.368	27.13
29	16.888	20.996	26.866
30	16.784	21.606	26.873
31	16.869	21.189	26.965
32	16.445	21.212	26.727
33	16.443	21.23	26.725
34	16.237	21.688	26.429
35	16.448	21.06	26.866
36	10.638	14.251	17.47
37	28.48	21.251	26.828
38	10.603	14.228	17.373
39	28.701	21.126	26.577
40	16.143	21.196	42.042
41	16.393	21.156	26.631
42	13.663	19.206	22.521
43	16.209	21.307	26.775
44	16.544	21.178	26.739
45	13.632	18.839	22.636
46	28.589	31.978	45.615
47	40.428	37.663	60.06
48	32.282	34.105	48.15
AVG:	18.78	23.65	31.75

Thanks

OpenConnect

goplus c2go