第一部分：KiLog2MaximumIncrement的由来
i = 1;
j = KeMaximumIncrement;
while ((1UI64<<i) <= KeMaximumIncrement) {
i++;
}
KiLog2MaximumIncrement = i;
2^17=131072
2^18=262144
i=18=KiLog2MaximumIncrement
中断多久触发一次？ 使用windbg进入内核态，使用nt!KeMaximumIncrement命令查看看它的值 nt!KeMaximumIncrement=2625a=156250
注意，单位为100ns,因此156250*100/1000/1000=15.625ms
第二部分：KiMaximumIncrementReciprocal的由来
Temp1 = 1UI64 << (KiLog2MaximumIncrement + 32);
Temp1 /= KeMaximumIncrement;
Temp1 -= 1UI64<<32;
Temp1 += 1;
KiMaximumIncrementReciprocal = (ULONG) Temp1;
KeTimerReductionModulus = KeMaximumIncrement * TIMER_TABLE_SIZE;
ASSERT ((KeTimerReductionModulus / TIMER_TABLE_SIZE) == KeMaximumIncrement);
Temp1 = 1UI64<<32;
Temp1 %= KeTimerReductionModulus;
KiUpperModMul = (ULONG) Temp1;
4000000000000(十六进制) = 1125899906842624(十进制)
1125899906842624/156250=7205759403
100000000(十六进制) = 4294967296(十进制)
7205759403-4294967296=2910792107
2910792107+1=2910792108
2910792108(十进制) = AD7F29AC(十六进制)
