Re: linux DBA's: O_Direct

Whoops. My error, it would seem. It seems to me that buffermem lingers in the GUI widget (redhat-config-something-or-other) used to configure sysctl.conf on RHEL, but I guess that doesn't mean a blessed thing... This does explain why the documentation is so lacking, though. :-)

So, is there a replacement for this parameter?

In the meantime, I had better have a look at my servers, and make sure my memory allocation really is as I think it is...

Cheers,
-- Mark.

Kevin Closson wrote:

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>>>>Mark,
>>>>
>>>> You may want to look into the BUFFERMEM parameter (which
>>>>you can set with sysctl). With this, you can restrict the
>>>>amount of RAM used to buffer filesystem I/O. This may (or
>>>>
>>>>
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>buffermem? That is a blast from the Red Hat
>"Frankenkernel" past. Mark Teehan is on 2.4.21
>which would be RHEL 3.0. The last Frankenkernel
>to have buffermem in /proc was RHAS 2.1
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>If you haven't nailed huge systems of both SuSE and
>RH against the wall to see which one splits at the
>seam easier, you might not know what Frankenkernel is :)
>
>--
>http://www.freelists.org/webpage/oracle-l
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