Henrique de Moraes Holschuh <[EMAIL PROTECTED]> wrote:
> Package: coreutils
> Version: 5.2.1-2.1
> Severity: normal
>
> Filling this bug as normal instead of wishlist because the lack of O_DIRECT
> in dd during big io takss causes the kernel to pratically discard all useful
> cached data and inodes, thus degrading system performance a great deal for
> no good reason.
...
FYI, this option was added for coreutils-5.3.0:
* Major changes in release 5.3.0 (2005-01-08) [unstable]
...
dd has new iflag= and oflag= options with the following flags:
...
direct use direct I/O for data
There's also been discussion of doing something similar for the
regular-file-copying code in copy.c.
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