Bug ???: time netstat -r depends on mouse moving?

Hello,


I'm using SuSE 8.1 pro, and I recently changed from an
ISDN modem to an ADSL router.
My box is dual boot with Win XP, and I found that
using even local networking is a lot slower
under Linux (2.4.sth from SuSE) than under XP.

While trying to isolate this under Linux I stumbled
into the following: the time needed for netstat -r
is just over 20 secs when I don't move the mouse.
When I move the mouse, it goes down to 0.6 secs,
see below.
Surfing the internet has the same difference:
as long as I move the mouse the speed is as expected
for my ADSL connection. Without mouse movement
there is a sluggish delay, after which the data
suddenly appears...
With ISDN, I've never had anything like this: always
normal speed.

Is this a known bug, and when so, is there a fix?
When not, is there anything I can do about it?
Should I evt. report this to SuSE?

I did fiddle around quite a bit in Yast for the
DSL setup (not needed for a router) and with
the firewall, however, these do not seem to
be the problem.


Kind regards,
Ype


The evidence:

Without mouse movement:

k7l:/home/ype # time netstat -r
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
10.0.0.0 * 255.255.255.0 U 40 0 0
eth0
default 10.0.0.138 0.0.0.0 UG 40 0 0
eth0

real 0m20.034s
user 0m0.000s
sys 0m0.000s

With mouse movement:

k7l:/home/ype # time netstat -r
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
10.0.0.0 * 255.255.255.0 U 40 0 0
eth0
default SpeedTouch.lan 0.0.0.0 UG 40 0 0
eth0

real 0m0.598s
user 0m0.000s
sys 0m0.000s

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