Messages in this thread | | | Date | Tue, 20 Nov 2001 15:01:54 -0800 (PST) | Subject | Re: Swap | From | "David S. Miller" <> |
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From: Andrew Morton <akpm@zip.com.au> Date: Tue, 20 Nov 2001 14:23:38 -0800
Could you please explain further? What's more expensive than the copy?
TLB misses add to the cost, and this overhead is more than "noise".
The Apache guys were playing with using mmap() for page contents and it was always slower than read() into a static buffer. - 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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