feat: use runtime.mallocgc to make bytes without clear memory

[jayantxie]

tiger@xxx:~/xiezhengyao/github.com/jayantxie/gopkg/lang/dirtmake$ GOMAXPROCS=1 GOGC=1000 go test -v -bench=. -benchmem -benchtime=5s
goos: linux
goarch: amd64
pkg: github.com/bytedance/gopkg/lang/dirtmake
cpu: Intel(R) Xeon(R) Gold 5118 CPU @ 2.30GHz
BenchmarkFastMake
BenchmarkFastMake/size=1024
BenchmarkFastMake/size=1024             75632510            80.88 ns/op     1024 B/op          1 allocs/op
BenchmarkFastMake/size=3072
BenchmarkFastMake/size=3072             56139994           104.1 ns/op      3072 B/op          1 allocs/op
BenchmarkFastMake/size=5120
BenchmarkFastMake/size=5120             25204423           213.5 ns/op      5376 B/op          1 allocs/op
BenchmarkFastMake/size=7168
BenchmarkFastMake/size=7168             12370452           498.2 ns/op      8192 B/op          1 allocs/op
BenchmarkFastMake/size=9216
BenchmarkFastMake/size=9216             35381056           177.0 ns/op      9472 B/op          1 allocs/op
BenchmarkFastMake/size=11264
BenchmarkFastMake/size=11264            15790495           371.2 ns/op     12288 B/op          1 allocs/op
BenchmarkFastMake/size=13312
BenchmarkFastMake/size=13312            24623552           282.5 ns/op     13568 B/op          1 allocs/op
BenchmarkFastMake/size=15360
BenchmarkFastMake/size=15360             8764629           650.0 ns/op     16384 B/op          1 allocs/op
BenchmarkFastMake/size=17408
BenchmarkFastMake/size=17408            21286158           324.7 ns/op     18432 B/op          1 allocs/op
BenchmarkFastMake/size=19456
BenchmarkFastMake/size=19456            15668707           420.1 ns/op     20480 B/op          1 allocs/op
BenchmarkOriginMake
BenchmarkOriginMake/size=1024
BenchmarkOriginMake/size=1024           27477183           207.9 ns/op      1024 B/op          1 allocs/op
BenchmarkOriginMake/size=3072
BenchmarkOriginMake/size=3072            7992910           742.3 ns/op      3072 B/op          1 allocs/op
BenchmarkOriginMake/size=5120
BenchmarkOriginMake/size=5120            4515583          1307 ns/op        5376 B/op          1 allocs/op
BenchmarkOriginMake/size=7168
BenchmarkOriginMake/size=7168            2712064          2203 ns/op        8192 B/op          1 allocs/op
BenchmarkOriginMake/size=9216
BenchmarkOriginMake/size=9216            3215642          1868 ns/op        9472 B/op          1 allocs/op
BenchmarkOriginMake/size=11264
BenchmarkOriginMake/size=11264           2260072          2579 ns/op       12288 B/op          1 allocs/op
BenchmarkOriginMake/size=13312
BenchmarkOriginMake/size=13312           2234844          2655 ns/op       13568 B/op          1 allocs/op
BenchmarkOriginMake/size=15360
BenchmarkOriginMake/size=15360           1659430          3624 ns/op       16384 B/op          1 allocs/op
BenchmarkOriginMake/size=17408
BenchmarkOriginMake/size=17408           1748785          3348 ns/op       18432 B/op          1 allocs/op
BenchmarkOriginMake/size=19456
BenchmarkOriginMake/size=19456           1513047          3991 ns/op       20480 B/op          1 allocs/op
PASS
ok      github.com/bytedance/gopkg/lang/dirtmake    151.884s