lkml.org 
[lkml]   [1997]   [May]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Q for the standards gurus...
Mike Jagdis wrote:
>
[snip]
> Question: I know wossisname, Gallmeister, gives AIO examples
> of AIO on ordinary files. I also know that SCO only does AIO
> on raw devices. What do other systems do? What is actually
> required by the standards? Would everyone or anyone be happy
> with AIO on block devices only?
>
> Mike

Let me say up front that I am far from being a "standard guru";
having said that, here's what I know:

Solaris does AIO in kernel on raw devices AND filesystems. In
2.4 you need to install it as a patch, 2.5+ should have that
in the vanilla distribution.
Actually it's the only OS I have seen where Oracle7 supports
asynchronous reads and writes on the filesystem.

SunOS, AIX (up to 4.1.5) and HP-UX (up to 10.20) only do AIO
on raw block device. Don't know for sure about other platforms
or later releases of AIX and HP-UX.



Ciao,

--alessandro <asuardi@uninetcom.it> <asuardi@it.oracle.com>

Linux-i386 kernel-2.1.36 libc-5.4.23 gcc-2.7.2.1 binutils-2.7.0.9


\
 
 \ /
  Last update: 2005-03-22 13:39    [W:0.062 / U:0.392 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site