lkml.org 
[lkml]   [2006]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 39 of 39] IB/ipath - use streaming copy in RDMA interrupt handler to reduce packet loss
From
From: Bryan O'Sullivan <bos@pathscale.com>
Date: Thu, 29 Jun 2006 14:59:37 -0700

> It could, indeed. In fact, we had that discussion here before I sent
> this patch in. It presumably wants to live in lib/, and acquire a more
> generic name. What name will capture the uncached-read-but-cached-write
> semantics in a useful fashion? memcpy_nc?

I'm not good with names :-)

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.
-
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/

\
 
 \ /
  Last update: 2006-06-30 00:09    [W:0.130 / U:0.904 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site