[Disksim-users] Why is SysSim time negative value?

[Wang Min]

Hi,all:
     I'm going to run the system-level simulation with syssim_driver.c, but 
the response time is a negative value -39163.548316,   why? I have also read 
through the related code, but can't explain it.

    syssim: externally-controlled DiskSim (avg. resp should be about 19.6ms)
  response time: n=1000 average=-39163.548316 std. deviation=22560.393800
IOdriver Response time average:         19.561833

PS:  the command is : ../src/syssim  st41601n.parv  syssim.outv  2676846  0