Messages in this thread | | | Subject | Re: [PATCH 39 of 39] IB/ipath - use streaming copy in RDMA interrupt handler to reduce packet loss | From | Bryan O'Sullivan <> | Date | Thu, 29 Jun 2006 16:34:23 -0700 |
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On Thu, 2006-06-29 at 15:03 -0700, David Miller wrote:
> I'm not good with names :-)
Heh. I'll call it memcpy_nc for now, then, and people can retch all over the name as they please when I submit a more suitably generic patch.
> Note that there also might be cases where using such a memcpy > variant might be the wrong thing to do. For example, for a very > tightly coupled CMT cpu implementation which has the memory controller, > L2 cache, PCI controller, etc. all on the same die and the PCI controller > makes use of the L2 cache just like the cpu threads do, using this > kind of memcpy would always be the wrong thing to do.
I'm not quite following you, though I assume you're referring to Niagara or Rock :-) Are you saying a memcpy_nc would do worse than plain memcpy, or worse than some other memcpy-like routine?
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