Hi, On Friday 16 March 2007 19:50:24 Aaron Turner wrote: > > [EMAIL PROTECTED] tcpreplay-2.3.5]# ./tcpreplay -i eth0 -l 50000 -R dump > > sending on: eth0 > > 1450000 packets (230700000 bytes) sent in 5.56 seconds > > 41440275.0 bytes/sec 316.16 megabits/sec 260461 packets/sec > > 316Mbps? Damn. You say this is a 1.4Ghz celeron? My 2.16Ghz > Core2Duo (macbook pro) only 180Mbps. What OS & version? What NIC? > Any performance tweaks you've done?
I did the testing without the network cable plugged in. As soon as i plug in a cable, the results drop below 100MBit. > > [EMAIL PROTECTED] tcpreplay-3.0.beta12]# ./src/tcpreplay -i eth0 -l 50000 -t > > dump sending out eth0 > > Actual: 1450000 packets (230700000 bytes) sent in 3.22 seconds > > Rated: 71636685.6 bps, 546.54 Mbps/sec, 450252.25 pps > > > > As you can see, there is a heavy speed up. 3.0 got even faster than > > 2.3.5. > > Wow, your terminal really has a stiff performance hit doesn't it? Can > you redirect stderr to a file and check the results? My guess is you > will see things improve significantly. Right: [EMAIL PROTECTED] tcpreplay-3.0.beta12]# ./src/tcpreplay -i eth0 -l 50000 -t dump 2>output [EMAIL PROTECTED] tcpreplay-3.0.beta12]# tail -f output processing file: dump processing file: dump processing file: dump processing file: dump processing file: dump processing file: dump processing file: dump Actual: 1450000 packets (230700000 bytes) sent in 4.28 seconds Rated: 53891947.0 bps, 411.16 Mbps/sec, 338722.68 pps > Anyways, I've added a --quiet option to tcpreplay which skips the > notices all together. It'll be part of 3.0.RC1. Thank you. Regards, Lothar -- There are only two kinds of languages: the ones nobody uses and the ones everybody bitches about" - B. Stroustroup Blog: http://const-cast.blogspot.com
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