rdesktop extremely slow

[Yi Wang]

My system is 7.0 beta3.

% uname -a
FreeBSD wangyi.com 7.0-BETA3 FreeBSD 7.0-BETA3 #1: Thu Nov 29 10:44:52
CST 2007     root at wangyi.com:/usr/obj/usr/src/sys/ULE  i386

when I use rdesktop to connect to windows server via rdp. the system
became extremely slow. this is output of top:

82 processes:  3 running, 79 sleeping
CPU states: 48.4% user,  0.0% nice, 50.0% system,  1.6% interrupt,  0.0% idle
Mem: 279M Active, 57M Inact, 149M Wired, 41M Cache, 108M Buf, 433M Free
Swap: 512M Total, 512M Free

  PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
 2127 wy            1 104    0 74472K 48280K RUN      5:13 41.55% Xorg
18509 wy            1  58    0  8620K  3556K RUN      1:30 21.97% rdesktop
 2800 wy            7  44    0   205M 86736K ucond    3:57 16.36% firefox-bin
 2473 wy            1  51    0 22352K 18412K select   0:45 10.69% fluxbox
18540 wy            1  45    0 42968K  6624K select   0:00  1.37% xterm
48541 wy            1  46    0  9864K  5112K select   0:18  0.00% vim
  460 root          1  44    0  3268K   856K select   0:16  0.00% moused
 1037 mysql         9  20    0 54388K 20452K sigwai   0:07  0.00% mysqld
48493 wy            1  44    0 43992K  7520K select   0:02  0.00% xterm
43089 wy            1  44    0 43992K  7672K select   0:01  0.00% xterm
  859 root          1  44    0  4648K  1732K select   0:01  0.00% ntpd
  725 bind          4  44    0 23400K 18048K select   0:01  0.00% named
 1039 root          1  44    0 23600K 11088K select   0:01  0.00% httpd
 2541 wy            1  44    0 47192K  6928K select   0:01  0.00% fcitx
 1133 www           1  20    0 24624K 12548K lockf    0:01  0.00% httpd
  782 root          1  44    0  6044K  1920K select   0:01  0.00% nmbd
18264 wy            1  45    0  9864K  5088K select   0:01  0.00% vim

I don't know what should I show you? dmesg or something else.

-- 
Regards,
Wang Yi