netperf

[Sebastian Sumpf]

On 01/28/2014 01:49 PM, Анна Будкина wrote:
> 
> 2014-01-28 Sebastian Sumpf <Sebastian.Sumpf at ...1...
> <mailto:Sebastian.Sumpf at ...1...>>
> 
>     On 01/28/2014 01:20 PM, Christian Helmuth wrote:
>     > Sebastian,
>     >
>     > On Tue, Jan 28, 2014 at 01:07:19PM +0100, Sebastian Sumpf wrote:
>     >> Thanks for your tests! But I don't like the 65 MBit/s thing! What is
>     >> going on? Is this RX or TX?
>     >
>     > Complete netperf output follows
>     >
>     > ---------------------------- TCP_STREAM -----------------------
>     > spawn netperf-2.6.0 -H 10.0.0.65 -P 1 -v 2 -t TCP_STREAM -c -C --
>     -m 1024
>     > MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to
>     10.0.0.65 () port 0 AF_INET
>     > Recv   Send    Send                          Utilization      
>     Service Demand
>     > Socket Socket  Message  Elapsed              Send     Recv    
>     Send    Recv
>     > Size   Size    Size     Time     Throughput  local    remote  
>     local   remote
>     > bytes  bytes   bytes    secs.    10^6bits/s  % S      % U    
>      us/KB   us/KB
>     >
>     >  87380  16384   1024    10.02        65.59   34.95    -1.00  
>      174.598  -1.249
>     >
>     > Alignment      Offset         Bytes    Bytes       Sends   Bytes  
>      Recvs
>     > Local  Remote  Local  Remote  Xfered   Per                 Per
>     > Send   Recv    Send   Recv             Send (avg)          Recv (avg)
>     >     8       8      0       0 82158592  1024.00     80233   8905.12
>       9226
>     >
>     > Maximum
>     > Segment
>     > Size (bytes)
>     >   1448
>     >
>     > calculation: overall bytes / size per packet / time = packets per
>     second
>     >              82158592 Bytes / 1024 Bytes / 10.02 s =     8007
>     packets/s
>     >
>     > ! PERF: TCP_STREAM              65.59 MBit/s ok
>     >
>     > ---------------------------- TCP_MAERTS -----------------------
>     > spawn netperf-2.6.0 -H 10.0.0.65 -P 1 -v 2 -t TCP_MAERTS -c -C --
>     -m 1024
>     > MIGRATED TCP MAERTS TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to
>     10.0.0.65 () port 0 AF_INET
>     > Recv   Send    Send                          Utilization      
>     Service Demand
>     > Socket Socket  Message  Elapsed              Recv     Send    
>     Recv    Send
>     > Size   Size    Size     Time     Throughput  local    remote  
>     local   remote
>     > bytes  bytes   bytes    secs.    10^6bits/s  % S      % U    
>      us/KB   us/KB
>     >
>     >  87380  16384   1024    10.00       543.35   39.06    -1.00  
>      23.555  -0.151
>     >
>     > Alignment      Offset         Bytes    Bytes       Recvs   Bytes  
>      Sends
>     > Local  Remote  Local  Remote  Xfered   Per                 Per
>     > Recv   Send    Recv   Send             Recv (avg)          Send (avg)
>     >     8       8      0       0 679280808  13875.90     48954  
>     16384.00  41474
>     >
>     > Maximum
>     > Segment
>     > Size (bytes)
>     >   1448
>     >
>     > calculation: overall bytes / size per packet / time = packets per
>     second
>     >              679280808 Bytes / 1024 Bytes / 10.00 s =    66336
>     packets/s
>     >
>     > ! PERF: TCP_MAERTS              543.35 MBit/s ok
>     >
>     >
>     > The manual states
>     >
>     >   TCP_STREAM  It is quite simple, transferring some quantity of data
>     >               from the system running netperf to the system running
>     >               netserver.
>     >   TCP_MAERTS  A TCP_MAERTS (MAERTS is STREAM backwards) test is “just
>     >               like” a TCP_STREAM test except the data flows from the
>     >               netserver to the netperf.
>     >
>     > So, the scenario is much slower if the Genode side is _receiving_.
> 
>     Without cursing: This is no good! I will look into that!

> Thank you very much for the reply! I will try to use Genode on Nova to
> perform these tests.

So, it is x86 i guess.

Sebastian