Re: Son of crunch time: the list v1.2.

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Mon Oct 21 2002 - 21:13:55 EST


>> 5) VM large page support (Many people) (in -mm tree)
>> http://lse.sourceforge.net/
>
> Rob - this URL doesn't seen to have anything directly to do with large page support.
>
> Others-
> Is this not already in the kernel? I still want to actually see someone from Oracle actually say "I will use this" or "we find this useful".
>
> [I cynically propose a sys_oracle and be done with it <g>]

Oracle are not the only users of this, nor the only database in
the world (though they often think they are) ;-)

There is *something* in the kernel ... whether it's useful or not
is a matter of opinion - what we see as remaining to do is to
provide hooks for generic interfaces (eg shmem, mmap, sbrk).
 
>> 6) Page table sharing (Daniel Phillips, Dave McCracken) (in -mm tree)
>> http://www.geocrawler.com/mail/msg.php3?msg_id=7855063&list=35
>> (A newer version of which seems to be at:)
>> http://lists.insecure.org/lists/linux-kernel/2002/Oct/6446.html
>
> IMO 2.7.x item...

Would be if it wasn't needed to alleviate all the overhead incurred
by rmap. As it is, the extra ZONE_NORMAL load kills large boxes dead ;-(
Will provide speedups for the fork+exec cycle for the low end too.

M.

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