Re: Introducing a new linux readahead framework

On Fri, Apr 21, 2006 at 08:20:28PM +0800, Wu Fengguang wrote:
> Hi Markus,
>
> On Fri, Apr 21, 2006 at 09:53:34AM +0200, Markus Schaber wrote:
> > Are there any rough estimates when this will get into mainline kernel
> > (if you intend to submit)?
>
> I'm not quite sure :)
>
> The patch itself has been pretty stable. To get it accepted, we must
> back it by good benchmarking results for some important applications.
> I have confirmed that file service via FTP/HTTP/NFS can more or less
> benefit from it. However, database services have not been touched yet.
> Oracle/DB2 seem to bypass the readahead code route, while postgresql
> relies totally on kernel readahead logic. So if postgresql is proved
> to work well with this patch, it will have good opportunity to go into
> mainline :)

IIRC Mark from OSDL said he'd try testing this when he gets a chance,
but you could also try running dbt2 and dbt3 against it.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
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