[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: O_DIRECT support in dd
From: |
Paul Eggert |
Subject: |
Re: O_DIRECT support in dd |
Date: |
Thu, 17 Nov 2005 22:42:16 -0800 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
Phillip Susi <address@hidden> writes:
> I searched the archives and found a thread from over a year ago
> talking about adding support to dd for O_DIRECT, but it is not
> documented in the man pages.
It's in coreutils 5.93 dd. Try, e.g., "dd iflag=direct". It's
not documented with the phrase "O_DIRECT", though, which is possibly
why you missed it.
> does dd use aio so as to keep the IO pipelined, since a blocking
> read/write would only be able to access one file/disk at a time?
Nope. Might be nice to add, I suppose.