Is there a virtual/system clock running independently when a computer is booted?
How can we read that value?
+3
A:
Use the RDTSC x86 instruction, it reads the clocks since the system-start.
Quonux
2010-07-15 07:42:55
can i use that for my intel x86 board..?/
pvaju896
2010-07-15 08:12:46
x86 is no board, its the instructionset of the cpu. And yes, its an x86 instruction.
Quonux
2010-07-15 08:22:57
+1 I use the processor time counter very frequently to benchmark code. It's much more precise than the system time functions.
Borealid
2010-07-15 08:34:39