>That information is out of date. >The bulk of the slow down in 64 bit was due to the fact that IOMMU >(CONFIG_DMAR) was enabled. The IOMMU requires programming DMA registers >on each packet which explains the extra overhead. After disabling >DMA remapping, the 64 bit kernel is faster because the compiler has >more registers and can generate better code. Thanks a lot. That's very valuable info. Best regards, Marek Kierdelewicz -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
