Messages in this thread | | | Date | Thu, 19 Sep 2002 19:01:54 -0700 (PDT) | Subject | Re: [NFS] Re: [PATCH] zerocopy NFS for 2.5.36 | From | "David S. Miller" <> |
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From: Andi Kleen <ak@suse.de> Date: Fri, 20 Sep 2002 04:06:19 +0200
> See "montdq/movnti", the latter of which even works on register > registers. Ben LaHaise pointed this out to me earlier today. The issue is that you really want to do prefetching in these loops (waiting for the hardware prefetch is too slow because it needs several cache misses to trigger) so for cache hints on reading only prefetch instructions are interesting. I'm talking about using this to bypass the cache on the stores. The prefetches are a seperate issue and I agree with you on that. - 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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