RE: How to time in Kernel

David Schwartz (davids@webmaster.com)
Thu, 24 May 2001 00:38:54 -0700

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> I am trying to time a portion of code inside the kernel. How do I do it?
> Can I use do_gettimeofday ? or do_getitimer ? Any leads will be
> appreciated.

If this is for personal debugging use only and you have a Pentium or better
x86 processor, I recommend reading the TSC directly. 'msr.h' (in the
asm-i386 include directory) include 'rdtsc' and friends.

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