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tweaks to mmap section

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Damian Gryski 2018-03-16 09:10:40 -07:00
parent ddc1b9031f
commit 141313c524
1 changed files with 3 additions and 2 deletions
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performance.md
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@ -836,11 +836,12 @@ allocate it. But you also pay every time the garbage collection runs.
* Common uses for unsafe
* mmap'ing data files
* struct padding
* but not always sufficiently faster to justify cost
* but not always sufficiently faster to justify complexity/safety cost
* but "off-heap", so ignored by gc (but so would a pointerless slice)
* need to think about serialization format: how to deal with pointers, indexing (mph, index header)
* speedy de-serialization
* string <-> slice conversion, []byte <-> []uint32, ...
* int to bool unsafe hack (but cmov)
* int to bool unsafe hack (but cmov) (but != 0 is also branch-free)
## Common gotchas with the standard library