lkml.org 
[lkml]   [2008]   [Apr]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: XTP for 2.6.25
    One host(sender) is 2.6.25, but the other(receiver) is 2.6.18.
    I will evaluate again after I upgrade it to 2.6.25.

    Thanks

    On Fri, Apr 25, 2008 at 5:23 PM, Ilpo Järvinen
    <ilpo.jarvinen@helsinki.fi> wrote:
    > On Fri, 25 Apr 2008, Shigeo N wrote:
    >
    > > case2) random delay
    > >
    > > In this case, add a fixed amount of delay + 10% random delay by
    > > command, "tc change dev eth0 root netem delay 100ms 10ms 25%".
    > >
    > > Here is the result.
    > >
    > > fixed delay UDP/TCP/XTP throghput
    > > ---------------------------------------
    > > 10ms 88/80/92 Mbps
    > > 30ms 88/51/91 Mbps
    > > 50ms 88/41/89 Mbps
    > > 70ms 88/28/80 Mbps
    > > 100ms 88/19/66 Mbps
    > >
    > > TCP's perfomance looks very poor when delay is long and variable.
    >
    > Where these results with 2.6.25 as well? ...John Heffner just couple of
    > days ago fixed reordering related problem in TCP (in case that netem
    > parametrization causes reordering), the fix is not even in 2.6.24.y, I
    > think...
    >
    > --
    > i.
    >
    \
     
     \ /
      Last update: 2008-04-25 10:55    [W:0.045 / U:0.424 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site