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View Code? Open in Web Editor NEWDirect IO Golang Writer (Linux O_DIRECT)
License: Apache License 2.0
Direct IO Golang Writer (Linux O_DIRECT)
License: Apache License 2.0
Direct IO is best used with large buffer size, so it's probably more common to see async calls to DirectIO streams.
Would be handy to have a method that opens a file and returns Direct IO Writer/Reader object for it.
I'm thinking same signature as https://golang.org/src/os/file.go?h=OpenFile#L282
When my go code is running with this O_DIRECT
flag, I run the command free -h
, I can still see hundreds of megabytes buffer are used
Drives may have different block size, consider using ioctl with BLKSSZGET for alignment block size.
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