Subject: playing with qemu's SMP support (i386)
To: None <tech-kern@NetBSD.org>
From: Hubert Feyrer <feyrer@cs.stevens.edu>
List: tech-kern
Date: 12/23/2005 04:10:55 
I've played a bit with qemu 0.8.0's SMP support.
Some interesting bits:

  * it works:
    http://www.cs.stevens.edu/~feyrer/qemu-smp1.gif
    http://www.cs.stevens.edu/~feyrer/qemu-smp2.gif

  * With >10 CPUs, top has some funny display problems (note the extra
    spaces before the %s):
    http://www.cs.stevens.edu/~feyrer/qemu-smp3.gif

  * qemu claims to support upto 255 CPUs, but when started with 128,
    NetBSD only recognizes the first 20:

    http://www.cs.stevens.edu/~feyrer/qemu-smp4.txt

  * I guess the funny CPU clockrates in the dmesg output can be blamed on
    qemu...


  - Hubert