Messages in this thread | | | Date | Sat, 11 Oct 2008 15:53:00 +0200 | From | Jens Axboe <> | Subject | Re: [PATCH 0/7] ide: locking improvements |
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On Sat, Oct 11 2008, Borislav Petkov wrote: > > >From my perspective the main gain of these patches is the increased > > maintainability and sanity of the code, scalability improvements are > > just an added bonus. > > and better code/improved scalability is a bad thing because... ?!
It's a bad thing because nobody on earth cares about IDE scalability, from a performance POV a modern SATA controller is just better on several levels. I don't think anybody cares about IDE scaling on 8-16 cores or more, simply because NOBODY is using IDE on such systems.
As such, trying to improve locking is a pointless exercise. And that is a bad thing, because code change invariably brings in code bugs. Then see previous mail on lack of coverage testing, and it can naturally be harmful.
> > > rather like putting makeup on a corpse to me.. > > so _NOT_ true.
Depends on what you think is the corpse. Since IDE is essentially dead and frozen, it IS a corpse and the phrase is then very appropriate. This is not a personal jab at the IDE guys and does not reflect on the (mostly) good work they do, just a reflection on the state of IDE in general.
-- Jens Axboe
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