Uninformed: Informative Information for the Uninformed

Vol 7» 2007.May


System Time

The system time component was highly predictable. The high 32-bit bits of the system time were predicted with 100 percent accuracy. The low 32-bit bits on the other hand were predicted with only 77 percent accuracy (3878 times). The reason for this discrepancy has to do with the thread scheduling scenario described in subsection 4.1.1. Even still, these results indicate that it is likely that the entire system time value can be accurately calculated.

Figure 5.2: Percent accuracy of each bit position for the estimated high 32-bits of the System Time
Image ds_syshigh_bits

Figure 5.3: Percent accuracy of each bit position for the estimated low 32-bits of the System Time
Image ds_syslow_bits