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System calls and 64-bit architectures

System calls and 64-bit architectures

Posted Dec 21, 2008 22:51 UTC (Sun) by jlokier (guest, #52227)
In reply to: System calls and 64-bit architectures by abatters
Parent article: System calls and 64-bit architectures

Except that Linux AIO (io_submit) isn't always asynchronous, and you can't easily tell when it will block the caller.

Some folks asking for preadv/pwritev are actually doing so because they rejected Linux AIO for being too broken to use.

They are preferring to use preadv/pwritev in userspace helper threads, than Linux AIO, because at least with threads it is always asynchronous.


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