Against 2.4.2-pre1: ftp://ftp.kernel.org/pub/linux/kernel/people/davem/zerocopy-2.4.2p1-2.diff.gz Only one notable change since the last installment, but an important one: 1) When doing paged SKB sendmsg(), use csum_and_copy_from_user instead of copy_from_user. The problem is that there appears to be some performance bug with some x86 processors when doing non-8-byte aligned memcpy operations via rep/movsl (P-II Mendocino is one known chip with the problem). So this change aims to remove this x86 anomaly from the zerocopy performance characteristics so we can see if there are some real implementation issues compared to running without the zerocopy patch applied. This is not to say that the x86 memcpy performance thing is being ignored, Linus and others are working on what to do about that seperately. Please test, thanks. Later, David S. Miller [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
