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I rsync some directories to a nfs-mount on a very large harddisk on a non-udma system. This system can read/write data at about 3-4 megabyte per second. If I rsync in 2.4, all happens as you'd expect: the update doesn't go fast, but the interactivity of the kernel is good while it's running. In 2.5.7x, it runs really fast for a while (rsync mentions 30 mb/s), and after a while slows down. Then, a mutt-session on another console lags about 10-30 seconds when you press a key. top gives 98% IO-wait. The nfs-server runs 2.4.21-rc7, and the mount is like this: server:/backup_big on /mnt type nfs (rw,wsize=16384,rsize=16384,hard,intr,posix,tcp,addr=x.x.x.x) The local machine I'm working on is an Athlon XP-2600 with pre-empt. The network is 100 mbps with full-duplex. I'm using NFS V3 on both sides. The interactivity in 2.4 is good, in 2.5.7x is very bad. Any hints? Thanks, Jurriaan -- Baldrick, I would advise you to make the explanation you are about to give phenomenally good. The Black Adder Debian (Unstable) GNU/Linux 2.5.72 4112 bogomips load av: 2.09 1.65 0.77 - 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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