RE: [patch, resend] x86, perf_counter, bts: optimize BTS overflowhandling

[Metzger, Markus T]

>-----Original Message-----
>From: Peter Zijlstra [mailto:a.p.zijlstra@xxxxxxxxx]
>Sent: Tuesday, September 15, 2009 1:40 PM


>You could also look at throttling the BTS interrupt when you notice
>you're doing them back-to-back..

There are always ~2k kernel branches between two interrupts.

I would need to detect whether the rest of the kernel has enough
time left. Any idea how I could do this?

thanks and regards,
markus.

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