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Andrew Morton writes: > OK, a bit of fiddling does indicate that if a file is present on both > client and server, and is modified on the client, the rsync client will > indeed touch the pagecache pages twice. Does this describe the files which > you're copying at all? The client/server thing is a bit misleading, what matters is the direction of the transfer. In the case I saw this morning, the G5 was the sender. In any case I was using the -W switch, which tells it not to use the rsync algorithm but just transfer the whole file. So I believe that rsync on the G5 side was just reading the file through once. I have also noticed similar behaviour after doing a bk pull on a kernel tree. The really strange thing is that the behaviour seems to get worse the more RAM you have. I haven't noticed any problem at all on my laptop with 768MB, only on the G5, which has 2.5GB. (The laptop is still on 2.6.2-rc3 though, so I will try a newer kernel on it.) Regards, Paul. - 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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