Changes between Version 14 and Version 15 of GENIRacksHome/InstageniRacks/AcceptanceTestStatus/OpenTopics


Ignore:
Timestamp:
02/28/13 12:37:15 (7 years ago)
Author:
lnevers@bbn.com
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • GENIRacksHome/InstageniRacks/AcceptanceTestStatus/OpenTopics

    v14 v15  
    5151
    5252
     53== InstaGENI Site Confirmation Tests Open Topic ==
     54
     55Performance Issues:
     56
     57 - Leigh investigating PC to VM results which did not meet his expectations for bandwidth shaping. In a scenario where no bandwidth is specified in RSpec, nodes will get a  1 GB interface whose traffic is shaped to 100 Mb/s for a VM, but not for a PC.  But performance recorded from PC show unexpected traffic levels:
     58 
     59|| End Points                 || One Client         || Five Clients        ||   Ten Clients      ||
     60|| PC to VM                   || 101 Mbits/sec      || 101 Mbits/sec       || 101 Mbits/sec      ||
     61|| VM to PC                   || 101 Mbits/sec      ||  101 Mbits/sec      || 101 Mbits/sec      ||
     62
     63 - Potential Site to Site VM over !OpenFlow performance issue for Utah sites.  Sent email to Rob. but not sure if he has access to page yet. Performance results captured show the following iperf TCP throughput:
     64
     65|| End points                              ||  One Client        ||    5 Clients           ||   10 Clients(tcp)    ||
     66||GPO IG VM to Utah IG   VM ||  11.2 Mbits/sec ||  21.7 Mbits/sec ||   41.5 Mbits/sec   ||
     67|| GPO IG VM to Utah PG VM ||  10.7 Mbits/sec ||  25.2 Mbits/sec ||   36.7 Mbits/sec   ||
     68
     69According to Rob, the only limitation is between the Utah campus switch on campus and the switch in the SALT I2 POP, which are limited to 4Gbps between them.  The results we go were substantially lower.
     70
     71Several fixes have been put in place since the measurements were collected in mid-February. Need to re-ran to re-run experiment to verify that results are unchanged.
     72