dd optimizing via netcat?
i tried to do dd over netcat via knoppix 5.1
2 t60 laptops with 60GB sata drives. 10/100 ethernet to a 10/100 switch (next time i'll use a x-over cable) destination was netcat -l -p 10000 |dd of=/dev/sda source was dd if=/dev/sda |nc 192.168.1.2 10000 taking a very very long time to dd the disk (took 1.89hours @ 8.8MB/s). is there a way to optimize block size to coincide with ethernet MTU ?? is bs=1024k the best size to use? i know this is probably old hat for most... but thanks for any info. |
That doesn't sound completely out of whack to me. 8.8MB/s is about 75 megaBITs per second, which is somewhere near saturation of a 100Mbit ethernet.
--- rod. |
Quote:
8.8MB = 70.4Mb = ~70% of fast-E, not quite near saturation. i'm doing another copy now with bs=1024k, will post those results later. thanks |
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