package bytealg

Import Path
	github.com/parquet-go/parquet-go/internal/bytealg (on go.dev)

Dependency Relation
	imports one package, and imported by 2 packages

Involved Source Files

	    broadcast_amd64.go
	  d bytealg.go
		Package bytealg contains optimized algorithms operating on byte slices.

	    bytealg_amd64.go
	    count_amd64.go
	    broadcast_amd64.s
	    count_amd64.s
Package-Level Functions (total 2)

	 func Broadcast(dst []byte, src byte)
		Broadcast writes the src value to all bytes of dst.

	 func Count(data []byte, value byte) int
		This function is similar to using the standard bytes.Count function with a
		one-byte separator. However, the implementation makes use of AVX-512 when
		possible, which yields measurable throughput improvements:
		
		name       old time/op    new time/op    delta
		CountByte    82.5ns ± 0%    43.9ns ± 0%  -46.74%  (p=0.000 n=10+10)
		
		name       old speed      new speed      delta
		CountByte  49.6GB/s ± 0%  93.2GB/s ± 0%  +87.74%  (p=0.000 n=10+10)
		
		On systems that do not have AVX-512, the AVX2 version of the code is also
		optimized to make use of multiple register lanes, which gives a bit better
		throughput than the standard library function:
		
		name       old time/op    new time/op    delta
		CountByte    82.5ns ± 0%    61.0ns ± 0%  -26.04%  (p=0.000 n=10+10)
		
		name       old speed      new speed      delta
		CountByte  49.6GB/s ± 0%  67.1GB/s ± 0%  +35.21%  (p=0.000 n=10+10)

The pages are generated with Golds v0.8.2. (GOOS=linux GOARCH=amd64)
Golds is a Go 101 project developed by Tapir Liu.
PR and bug reports are welcome and can be submitted to the issue list.
Please follow @zigo_101 (reachable from the left QR code) to get the latest news of Golds.