Getting interrupt every million cache misses

From	Pavel Machek <pavel@ucw.cz>
Newsgroups	linux.kernel
Subject	Getting interrupt every million cache misses
Date	2016-10-26 23:00 +0200
Message-ID	<swDsL-uO-41@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi!

I'd like to get an interrupt every million cache misses... to do a
printk() or something like that. As far as I can tell, modern hardware
should allow me to do that. AFAICT performance events subsystem can do
something like that, but I can't figure out where the code is / what I
should call.

Can someone help?

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Getting interrupt every million cache misses Pavel Machek <pavel@ucw.cz> - 2016-10-26 23:00 +0200
  Re: Getting interrupt every million cache misses Peter Zijlstra <peterz@infradead.org> - 2016-10-27 11:20 +0200
  Re: Getting interrupt every million cache misses Pavel Machek <pavel@ucw.cz> - 2016-10-27 16:40 +0200
    Re: Getting interrupt every million cache misses Peter Zijlstra <peterz@infradead.org> - 2016-10-27 16:40 +0200
      Re: Getting interrupt every million cache misses Kees Cook <keescook@chromium.org> - 2016-10-27 22:50 +0200
        rowhammer protection [was Re: Getting interrupt every million cache  misses] Pavel Machek <pavel@ucw.cz> - 2016-10-27 23:30 +0200
          Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Ingo Molnar <mingo@kernel.org> - 2016-10-28 09:10 +0200
            Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 11:00 +0200
              Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Ingo Molnar <mingo@kernel.org> - 2016-10-28 11:00 +0200
                Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 14:00 +0200
              Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Peter Zijlstra <peterz@infradead.org> - 2016-10-28 11:10 +0200
                Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Vegard Nossum <vegard.nossum@gmail.com> - 2016-10-28 11:30 +0200
                Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Ingo Molnar <mingo@kernel.org> - 2016-10-28 11:40 +0200
                Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Vegard Nossum <vegard.nossum@gmail.com> - 2016-10-28 11:50 +0200
                Re: [kernel-hardening] Re: rowhammer protection [was Re: Getting  interrupt every million cache misses] Mark Rutland <mark.rutland@arm.com> - 2016-10-28 12:00 +0200
                Re: rowhammer protection [was Re: Getting interrupt every million  cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 13:30 +0200
          Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Mark Rutland <mark.rutland@arm.com> - 2016-10-28 12:00 +0200
            Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 13:30 +0200
              Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Mark Rutland <mark.rutland@arm.com> - 2016-10-28 16:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Peter Zijlstra <peterz@infradead.org> - 2016-10-28 16:20 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 20:40 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Peter Zijlstra <peterz@infradead.org> - 2016-10-28 20:50 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-11-02 19:20 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-28 19:30 +0200
                Re: Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-10-29 15:20 +0200
                Re: Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-29 21:50 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-10-29 22:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-29 23:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-10-29 23:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-29 23:50 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-10-30 00:00 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-30 00:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-10-30 00:10 +0200
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-31 09:30 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Mark Rutland <mark.rutland@arm.com> - 2016-10-31 15:50 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-10-31 22:20 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Mark Rutland <mark.rutland@arm.com> - 2016-10-31 23:10 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Ingo Molnar <mingo@kernel.org> - 2016-11-01 07:40 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Micay <danielmicay@gmail.com> - 2016-11-01 08:30 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-11-01 09:00 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Daniel Gruss <daniel@gruss.cc> - 2016-11-01 09:20 +0100
                Re: [kernel-hardening] rowhammer protection [was Re: Getting  interrupt every million cache misses] Pavel Machek <pavel@ucw.cz> - 2016-11-01 09:20 +0100
  Re: Getting interrupt every million cache misses Pavel Machek <pavel@ucw.cz> - 2016-10-27 16:50 +0200
  Re: Getting interrupt every million cache misses Peter Zijlstra <peterz@infradead.org> - 2016-10-27 17:20 +0200

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