dtrace discuss - Apr 2011 - Comparing results of a netperf test with Solaris Tools and DTrace "tcpstat.d"

Hello, 

my first mail to the list :) 

I run a set of tests with netperf: 

? 

for i in 1 2 3 4 ; do? netperf -H netserver -c -C -i 10 -P 0 -- -s 128k
-S 128k & done 

!!! WARNING
 !!! Desired confidence was not achieved within the specified iterations.
 !!! This implies that there was variability in the test environment that
 !!! must be investigated before going further.
 !!! Confidence intervals: Throughput????? : 15.680%
 !!!?????????????????????? Local CPU util? :
10.129%
 !!!?????????????????????? Remote CPU util : 6.731% 

128104 128000 128000??? 10.00?????? 212.92?? 56.40???
70.73??? 43.636? 54.742
 !!! WARNING
 !!! Desired confidence was not achieved within the specified iterations.
 !!! This implies that there was variability in the test environment that
 !!! must be investigated before going further.
 !!! Confidence intervals: Throughput????? : 17.850%
 !!!?????????????????????? Local CPU util? :
10.128%
 !!!?????????????????????? Remote CPU util : 6.758% 

128104 128000 128000??? 10.00?????? 213.60?? 56.40???
70.74??? 43.595? 54.697
 !!! WARNING
 !!! Desired confidence was not achieved within the specified iterations.
 !!! This implies that there was variability in the test environment that
 !!! must be investigated before going further.
 !!! Confidence intervals: Throughput????? : 12.001%
 !!!?????????????????????? Local CPU util? :
10.168%
 !!!?????????????????????? Remote CPU util : 6.761% 

128104 128000 128000??? 10.00?????? 220.80?? 56.39???
70.73??? 41.987? 52.595
 !!! WARNING
 !!! Desired confidence was not achieved within the specified iterations.
 !!! This implies that there was variability in the test environment that
 !!! must be investigated before going further.
 !!! Confidence intervals: Throughput????? : 24.409%
 !!!?????????????????????? Local CPU util? :
10.398%
 !!!?????????????????????? Remote CPU util : 6.766% 

128104 128000 128000??? 10.02?????? 201.56?? 56.38???
70.73??? 46.549? 58.390 

[1]?? Done??????????????????? netperf -H netserver -c
-C -i 10 -P 0 -- -s 128k -S 128k? (wd: ~)
 (wd now: /OPSTEST/tackerma)
 [2]?? Done??????????????????? netperf -H netserver
-c -C -i 10 -P 0 -- -s 128k -S 128k? (wd: ~)
 (wd now: /OPSTEST/tackerma)
 [3]-? Done??????????????????? netperf -H netserver -c
-C -i 10 -P 0 -- -s 128k -S 128k? (wd: ~)
 (wd now: /OPSTEST/tackerma)
 [4]+? Done??????????????????? netperf -H netserver -c
-C -i 10 -P 0 -- -s 128k -S 128k? (wd: ~)

? 

So, i assume that? about 850MB were transmitted. 
>>> 212.92 + 213.60 + 220.80 + 201.56
 848.87999999999988

I watched this test with several OS and system tools: 

? 

 nicstat-1.22/nicstat.Solaris.sparc -n 10 

??? Time????? Int?? rKB/s?? wKB/s?? rPk/s?? wPk/s???
rAvs??? wAvs %Util??? Sat
 14:04:05???? bge0??? 5.76??? 0.09?? 34.89??? 1.30??
169.2?? 68.31? 0.00?? 0.00
 14:04:15???? bge0??? 6.90??? 0.09?? 39.31??? 1.40??
179.6?? 67.71? 0.01?? 0.00
 14:04:25???? bge0 66432.7??? 0.06 44952.4??? 1.00? 1513.3??
65.80? 54.4?? 0.00
 14:04:35???? bge0 97336.8??? 0.07 65858.5??? 1.10? 1513.4??
65.82? 79.7?? 0.00
 14:04:45???? bge0? 106039??? 0.09 71754.2??? 1.30? 1513.3??
67.85? 86.9?? 0.00
 14:04:55???? bge0? 116455??? 0.08 78784.6??? 1.19? 1513.6??
65.83? 95.4?? 0.00
 14:05:05???? bge0? 103871??? 0.07 70285.7??? 1.11? 1513.3??
68.36? 85.1?? 0.00
 14:05:15???? bge0? 108125??? 0.28 73148.8??? 1.90? 1513.6??
152.6? 88.6?? 0.00
 14:05:25???? bge0? 107270??? 0.11 72562.5??? 1.40? 1513.8??
83.57? 87.9?? 0.00
 14:05:35???? bge0? 117035??? 0.09 79179.9??? 1.30? 1513.6??
68.00? 95.9?? 0.00
 14:05:45???? bge0? 107024??? 0.11 72394.8??? 1.30? 1513.8??
83.92? 87.7?? 0.00
 14:05:55???? bge0? 107191??? 0.07 72514.6??? 1.10? 1513.7??
65.82? 87.8?? 0.00
 14:06:05???? bge0 50169.2??? 0.07 33961.3??? 1.10? 1512.7??
65.82? 41.1?? 0.00
 14:06:15???? bge0??? 6.49??? 0.14?? 39.91??? 1.80??
166.5?? 81.50? 0.01?? 0.00 

 ./tcpstat.d_10s 

??? TCP_out?? TCP_outRe????? TCP_in?? TCP_inDup??? TCP_inUn
 ??????? 984?????????? 0????????
216?????????? 0?????????? 0
 ?????? 2044?????????? 0?? 868107184??????????
0???? 9183872
 ?????? 4478?????????? 0?? 978826459??????????
0??? 10973360
 ?????? 3060?????????? 0? 1051471652??????????
0???? 9635584
 ?????? 3008?????????? 0? 1050969704??????????
0???? 9083768
 ?????? 3032?????????? 0? 1039588008???????
1448???? 9397584
 ?????? 4624?????????? 0? 1069841236??????????
0???? 9893776
 ?????? 3294?????????? 0? 1063289869??????????
0???? 9569424
 ?????? 2996?????????? 0? 1053051824??????????
0???? 9521664
 ?????? 3173?????????? 0? 1065730188??????????
0???? 8924416
 ?????? 4390?????????? 0? 1060844483??????????
0???? 9783496
 ?????? 2148?????????? 0?? 213176464??????????
0???? 1949288
 ?????? 1421?????????? 0????????
549?????????? 0?????????? 0 

 ./sysperfstat.pl 10 

??????????? ------ Utilisation ------???? ------ Saturation
------
 ??? Time??? %CPU?? %Mem? %Disk?? %Net???? CPU???
Mem?? Disk??? Net
 14:04:12??? 2.34? 11.44?? 0.00?? 0.04??? 0.60?? 0.00??
0.00?? 0.00
 14:04:22?? 25.31? 11.54?? 7.13? 57.16??? 0.40?? 0.00??
0.00?? 0.00
 14:04:33?? 62.30? 11.58?? 0.00 167.63??? 0.40?? 0.00??
0.00?? 0.00
 14:04:43?? 70.48? 11.61?? 0.00 183.50??? 1.89?? 0.00??
0.00?? 0.00
 14:04:53?? 65.37? 11.65?? 8.31 175.27??? 0.80?? 0.00??
0.00?? 0.00
 14:05:03?? 71.65? 11.68?? 6.57 167.08??? 0.99?? 0.00??
0.00?? 0.00
 14:05:13?? 65.48? 11.71?? 0.00 195.03??? 0.69?? 0.00??
0.00?? 0.00
 14:05:23?? 64.51? 11.75?? 8.21 174.61??? 0.79?? 0.00??
0.00?? 0.00
 14:05:33?? 65.69? 11.86?? 0.00 175.13??? 0.40?? 0.00??
0.00?? 0.00
 14:05:43?? 66.90? 11.81?? 0.00 191.91??? 1.79?? 0.00??
0.00?? 0.00
 14:05:53?? 64.84? 11.85?? 7.10 174.58??? 0.60?? 0.00??
0.00?? 0.00
 14:06:03?? 46.51? 11.44?? 0.00 117.98??? 0.30?? 0.00??
0.00?? 0.00
 14:06:13??? 2.19? 11.44?? 0.00?? 0.04??? 0.60?? 0.00??
0.00?? 0.00 

 ../bin/se nx.se 10 

14:04:12 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp??????? 0.7??? 1.0?? 0.03?? 0.12?? 0.00?? 0.00??
0.0?? 0.00?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0????? 37.7??? 1.2?? 6.48?? 0.08? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 36.3??? 2.8?? 6.37?? 0.29? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge2?????? 2.2??? 2.4?? 0.18?? 0.18? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.5??? 2.3?? 0.23?? 0.17? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:04:22 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 22849.5??? 1.0 32231.14?? 0.20?? 0.00?? 0.00??
0.0?? 0.80?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 16358.0??? 1.0 24146.71?? 0.06? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 31.2 2149.1?? 5.25 149.66? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.7??? 2.3?? 0.27?? 0.19? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 1.9??? 1.9?? 0.12?? 0.12? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:04:32 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 70802.8??? 1.7 99860.03?? 0.44?? 0.00?? 0.00??
0.0?? 0.50?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 76169.3??? 1.2 112587.84?? 0.08? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 36.5 10615.4?? 6.10 737.66? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 3.1??? 2.7?? 0.30?? 0.21? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.3??? 2.2?? 0.15?? 0.14? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:04:42 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 70290.7??? 1.4 99111.98?? 0.30?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 68262.3??? 1.3 100870.34?? 0.09? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 34.0 11692.4?? 5.89 810.57? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 3.0??? 3.2?? 0.35?? 0.35? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.0??? 2.0?? 0.15?? 0.13? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:04:52 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 74031.4??? 1.3 104419.59?? 0.30?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 72090.2??? 1.2 106559.85?? 0.08? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 33.7 9893.7?? 5.68 685.94? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.0??? 2.3?? 0.13?? 0.17? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.8??? 2.2?? 0.28?? 0.16? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:02 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 71402.9??? 1.2 100687.96?? 0.29?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 76589.5??? 1.1 113191.06?? 0.07? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 36.4 12128.9?? 6.01 840.04? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.2??? 2.1?? 0.14?? 0.13? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 3.2??? 2.8?? 0.34?? 0.23? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:12 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 75003.4??? 1.5 105785.48?? 0.32?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 73186.5??? 1.4 108176.92?? 0.11? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 35.0 10130.7?? 6.06 702.60? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.0??? 2.1?? 0.13?? 0.14? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.8??? 2.7?? 0.29?? 0.26? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:22 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 74152.6??? 1.4 104598.08?? 0.43?? 0.00?? 0.00??
0.0?? 0.50?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 72394.3??? 1.7 107015.80?? 0.25? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 33.2 10090.5?? 5.47 699.50? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.5??? 1.9?? 0.23?? 0.12? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.1??? 2.4?? 0.17?? 0.19? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:32 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 74356.8??? 1.4 104877.81?? 0.32?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 72267.1??? 1.4 106825.49?? 0.11? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 34.3 9607.7?? 5.85 666.12? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.8??? 2.0?? 0.28?? 0.13? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.1??? 2.5?? 0.14?? 0.20? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:42 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 73952.7??? 1.4 104306.72?? 0.31?? 0.00?? 0.00??
0.0?? 0.40?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 79403.5??? 1.4 117373.51?? 0.11? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 36.5 11148.0?? 6.24 772.15? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 3.4??? 3.0?? 0.37?? 0.31? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.1??? 2.2?? 0.14?? 0.15? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:05:52 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 73571.5??? 1.4 103783.93?? 0.43?? 0.00?? 0.00??
0.0?? 0.50?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 71733.9??? 1.2 106045.25?? 0.08? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 34.8 9590.5?? 5.71 665.08? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.4??? 2.4?? 0.20?? 0.19? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.4??? 2.0?? 0.20?? 0.13? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:06:02 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp???? 53402.0??? 0.8 75321.52?? 0.19?? 0.00?? 0.00??
0.0?? 0.00?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0??? 56056.9??? 1.1 82846.81?? 0.07? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 37.2 7997.7?? 6.58 554.43? 0.000? 0.000?? 0.0??
0.00?? 0.00
 bge2?????? 2.0??? 2.3?? 0.13?? 0.19? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 2.7??? 1.9?? 0.28?? 0.12? 0.000? 0.000??
0.0?? 0.00?? 0.00 

14:06:12 Iseg/s Oseg/s InKB/s OuKB/s Rst/s? Atf/s? Ret%? Icn/s? Ocn/s
 tcp??????? 0.9??? 1.1?? 0.05?? 0.14?? 0.00?? 0.00??
0.0?? 0.00?? 0.00
 Name??? Ipkt/s Opkt/s InKB/s OuKB/s IErr/s OErr/s Coll% NoCP/s Defr/s
 bge0????? 36.4??? 1.6?? 5.91?? 0.13? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge1????? 34.8??? 2.8?? 5.77?? 0.29? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge2?????? 2.0??? 2.9?? 0.13?? 0.28? 0.000? 0.000??
0.0?? 0.00?? 0.00
 bge3?????? 3.0??? 2.1?? 0.33?? 0.14? 0.000? 0.000??
0.0?? 0.00?? 0.00

So far, it seems that most tools show about the same numbers - beside the
DTrace script "nx.se", which output i just do not understand. 

? 

Shoudn?t "TCP_in" be number of bytes read from network? 

Those numbers are by far too high!
For?example,?1039588008?is?1,039,588,008?(one?billion)?...

What?shall?that?be?

Can?anybody?enlighten?me?about?the?results?of?"tcpstat.d"?

I?am?just?not?sure?how?to?interprete?the?numbers?-?or?if?those?results?are?comparable?to?other?tools?at?all.

?

BTW,?i?created?"tcpstat.d_10s"?from?"tcpstat.d"?with?changing?"tick-1sec"?to?"tick-10sec".

But?the?numbers?are?the?same?for?the?original?script!

?

Thank?you?very?much!

[ Tolle Angebote findet ihr unter: http://www.uni.de/shopping ]
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On Wed, 06 Apr 2011 16:04:19 +0200, Thomas  wrote: 
> So far, it seems that most tools show about the same numbers - beside
 > the DTrace script "nx.se", which output i just do not
understand.

? 

Ups. 

I?meant to write the DTrace ToolKit script "tcpstat.d", not the SE
ToolKit script "nx.se", sorry! 

?
[ Tolle Angebote findet ihr unter: http://www.uni.de/shopping ]
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On 4/6/11 8:04 AM, Thomas wrote:
> BTW, i created "tcpstat.d_10s" from "tcpstat.d" with
changing "tick-1sec" to "tick-10sec".
> But the numbers are the same for the original script!
Hi Thomas,

Dividing the tcpstat.d output values by 10 brings them in line with the 
rest of your measurements.  Are you sure you didn''t make a 10x error 
when comparing your modified tcpstat.d with the original?  (hint: the 
key probe is the last one in the script where the counters are reset).

Mike

Mike wrote: 
> Dividing the tcpstat.d output values by 10 brings them in line with the
rest of your measurements.? Are you sure you didn''t make a 10x error
when
comparing your modified tcpstat.d with the original?? (hint: the key probe
is the last one in the script where the counters are reset). 

? 

Uhmm. 

Yes. You?re right, kind of :) 

Thank you! 

? 

I tried again with the regular script: 

??? TCP_out?? TCP_outRe????? TCP_in?? TCP_inDup??? TCP_inUn
 ??????? 100?????????? 0??
107159168?????????? 0?????????? 0
 ??????? 316?????????? 0??
103296672?????????? 0?????????? 0
 ??????? 100?????????? 0??
105086552?????????? 0?????????? 0
 ??????? 612?????????? 0??
102532224?????????? 0?????????? 0
 ??????? 100?????????? 0??
102800916?????????? 0????? 110048
 ??????? 100?????????? 0??
107525452?????????? 0?????????? 0
 ??????? 100?????????? 0??
101727804?????????? 0????? 111000
 ??????? 100?????????? 0??
108321680?????????? 0?????????? 0
 ??????? 100?????????? 0??
104378992?????????? 0????? 116792
 ??????? 100?????????? 0??
104001056?????????? 0????? 111000
 ??????? 100?????????? 0??
105311944?????????? 0????? 122408
 ??????? 100?????????? 0??
106907924?????????? 0?????????? 0
 ??????? 100?????????? 0??
105918264?????????? 0?????????? 0
 ??????? 612?????????? 0???
98864416?????????? 0?????????? 0
 ??????? 100?????????? 0??
104936868?????????? 0?????????? 0
 ??????? 100?????????? 0??
108334572?????????? 0?????????? 0
 ??????? 100?????????? 0??
106463980?????????? 0?????????? 0
 ??????? 100?????????? 0??
109640400?????????? 0?????????? 0
 ??????? 100?????????? 0??
103656656?????????? 0????? 124032
 ??????? 100?????????? 0??
104951880?????????? 0????? 121136

Now we have 105311944 = 105,311,944 which is 100 million. 

But this is still too much compared to the the other tools, which show
about 70 to 80 MB/s, which seems to right for a 1Gb link. 

Am i doing something wrong? 

Or do i missinterprete the output of the script? 

? 

Thanx for any further enlightenment :)
[ Tolle Angebote findet ihr unter: http://www.uni.de/shopping ]
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Thomas wrote: 
> But this is still too much compared to the the other tools, which show
about 70 to 80 MB/s, which seems to right for a 1Gb link. 

Uhh. 

Forget about this :) 

It seems i already assumed a performance of about 80 MB/s and misread the
output of the other commands too (number of packages). 

100 MB/s seems to be possible over 1Gb lines - which i did not expect to
happen.
[ Tolle Angebote findet ihr unter: http://www.uni.de/shopping ]
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On 4/6/11 9:33 AM, Thomas wrote:
> 100 MB/s seems to be possible over 1Gb lines - which i did not expect 
> to happen.
 >100MBytes/sec is certainly possible on a 1Gbps link.  If you get 
results >125MBytes/sec, then you should be skeptical ;-)

Mike
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