On Friday 08 March 2002 03:40 pm, Alan Cox wrote:
> > So I would suggest making the size (and thus alignment check) of locks at
> > least 8 bytes (and preferably 16). That makes it slightly harder to put
> > locks on the stack, but gcc does support stack alignment, even if the
> > code sucks right now.
>
> Can we go to cache line alignment - for an array of locks thats clearly
> advantageous
NO and let me explain.
I would to be able to integrate the lock with the data.
This is much more cache friendly then putting the lock on a different
cacheline.
If you want an array you need to pad each element.
That's easy enough to do....
Can't shrink a datastructure on the other hand :-)
-- -- Hubertus Franke (frankeh@watson.ibm.com) - 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/
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