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restic/chunker
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Alexander Neumann bdcdcdea7d Optimize chunker 
Skip MinSize bytes at the beginning of each chunk. This increases
throughput about 30% percent.

Before:
    $ go test -v -bench . ./chunker
    === RUN TestChunker
    --- PASS: TestChunker (0.60s)
    === RUN TestChunkerReuse
    --- PASS: TestChunkerReuse (2.18s)
    PASS
    BenchmarkChunker          10     111229642 ns/op      94.27 MB/s
    --- BENCH: BenchmarkChunker
        chunker_test.go:168: 6 chunks, average chunk size: 1747626 bytes
        chunker_test.go:168: 6 chunks, average chunk size: 1747626 bytes
    ok      github.com/restic/restic/chunker    4.120s

After:
    $ go test -v -bench . ./chunker
    === RUN TestChunker
    --- PASS: TestChunker (0.48s)
    === RUN TestChunkerReuse
    --- PASS: TestChunkerReuse (1.75s)
    PASS
    BenchmarkChunker          20      81468596 ns/op     128.71 MB/s
    --- BENCH: BenchmarkChunker
        chunker_test.go:168: 6 chunks, average chunk size: 1747626 bytes
        chunker_test.go:168: 6 chunks, average chunk size: 1747626 bytes
    ok      github.com/restic/restic/chunker    4.061s
2015-01-14 16:33:41 +01:00
..
chunker_test.go Optimize chunker 2015-01-14 16:33:41 +01:00
chunker.go Optimize chunker 2015-01-14 16:33:41 +01:00
doc.go Add code for content defined chunking (CDC) 2014-09-18 21:10:20 +02:00