krishna wrote:
Hi All,
Can any one tell me how to measure time accurately for a block of C code
in device drivers.
For example, If I want to measure the time duration of firmware download.
Most cpus have some way of getting at a counter or decrementer of
various frequencies. Usually it requires low-level hardware knowledge
and often it needs assembly code.
On ppc you'd use the mftbu/mftbl instructions, as suggested by Lee on
x86 you'd use the rdtsc instruction.
Chris
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
