Re: ORMAP

[John Richard Moser <nigelenki@comcast.net>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Nick Piggin wrote:
> John Richard Moser wrote:
> 
>> Nick Piggin wrote:
>>
>>> 2.6 has an object based rmap system working nicely for quite
>>> a while now (though it was probably not exactly what you saw
>>> in the -wli tree, but a derivative).
>>>
>>> It would be surprising if that made your system boot 3 times
>>> faster though (unless it was on the edge of a swap storm or
>>> something)
>>>
>>
>> Dramatization.  It was probably around 30 seconds faster on a 2-3 minute
>> boot sequence (I had a lot in rc.d), but it was noticeable :P
>>
>> I was wondering about that stuff.  There used to be a few cute things
>> out there but I can't remember any of it now.  Page clustering etc etc.
>>
>>
> 
> Well I don't think any of that stuff was simply forgotten. Page
> clustering for
> i386, for example became less important because of objrmap, reductions
> in size
> of struct page, and the demise of insane highmem machines (due to x86-64).
> 

Cool cool.  What juicy things are out there these days that will
probably make future kernels faster and more memory-light?  New
schedulers?  Ingo's SLAB rewrite and priority inheritance?

> Nick
> -- 
> 
> Send instant messages to your online friends http://au.messenger.yahoo.com

- --
All content of all messages exchanged herein are left in the
Public Domain, unless otherwise explicitly stated.

    Creative brains are a valuable, limited resource. They shouldn't be
    wasted on re-inventing the wheel when there are so many fascinating
    new problems waiting out there.
                                                 -- Eric Steven Raymond

    We will enslave their women, eat their children and rape their
    cattle!
                                     -- Evil alien overlord from Blasto
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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=jO4u
-----END PGP SIGNATURE-----
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/