> But for last 4 days the consumed cycles have suddenly increased to
> around 35 cycles . I'm using RDTSC instruction to profile the
> code.There is no change in code and the kernel version is also the
> same .I am assuming that there  must be something wrong with hardware.
>
> Please guide me how can i figure out the root cause.What areas should

Maybe you have a new version of GCC now? (auto-update or something?)
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