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From: Pavel Machek <pavel@ucw.cz>
To: acme@redhat.com, kernel list <linux-kernel@vger.kernel.org>
Cc: peterz@infradead.org, mingo@redhat.com,
	alexander.shishkin@linux.intel.com
Subject: Getting interrupt every million cache misses
Date: Wed, 26 Oct 2016 22:54:16 +0200	[thread overview]
Message-ID: <20161026204748.GA11177@amd> (raw)

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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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             reply	other threads:[~2016-10-26 20:54 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-26 20:54 Pavel Machek [this message]
2016-10-27  8:28 ` Getting interrupt every million cache misses Peter Zijlstra
2016-10-27  8:46   ` Pavel Machek
2016-10-27  9:15     ` Peter Zijlstra
2016-10-27  9:11   ` Pavel Machek
2016-10-27  9:33     ` Peter Zijlstra
2016-10-27 20:40       ` [kernel-hardening] " Kees Cook
2016-10-27 20:40         ` Kees Cook
2016-10-27 21:27         ` [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses] Pavel Machek
2016-10-27 21:27           ` Pavel Machek
2016-10-28  7:07           ` [kernel-hardening] " Ingo Molnar
2016-10-28  7:07             ` Ingo Molnar
2016-10-28  8:50             ` [kernel-hardening] " Pavel Machek
2016-10-28  8:50               ` Pavel Machek
2016-10-28  8:59               ` [kernel-hardening] " Ingo Molnar
2016-10-28  8:59                 ` Ingo Molnar
2016-10-28 11:55                 ` [kernel-hardening] " Pavel Machek
2016-10-28 11:55                   ` Pavel Machek
2016-10-28  9:04               ` [kernel-hardening] " Peter Zijlstra
2016-10-28  9:04                 ` Peter Zijlstra
2016-10-28  9:27                 ` [kernel-hardening] " Vegard Nossum
2016-10-28  9:27                   ` Vegard Nossum
2016-10-28  9:35                   ` [kernel-hardening] " Ingo Molnar
2016-10-28  9:35                     ` Ingo Molnar
2016-10-28  9:47                     ` [kernel-hardening] " Vegard Nossum
2016-10-28  9:47                       ` Vegard Nossum
2016-10-28  9:53                     ` [kernel-hardening] " Mark Rutland
2016-10-28 11:27                 ` Pavel Machek
2016-10-28 11:27                   ` Pavel Machek
2016-10-28  9:51           ` [kernel-hardening] " Mark Rutland
2016-10-28 11:21             ` Pavel Machek
2016-10-28 14:05               ` Mark Rutland
2016-10-28 14:18                 ` Peter Zijlstra
2016-10-28 18:30                   ` Pavel Machek
2016-10-28 18:48                     ` Peter Zijlstra
2016-11-02 18:13                   ` Pavel Machek
2016-10-28 17:27                 ` Pavel Machek
2016-10-29 13:06                   ` Daniel Gruss
2016-10-29 19:42                     ` Pavel Machek
2016-10-29 20:05                       ` Daniel Gruss
2016-10-29 20:14                         ` Daniel Gruss
2016-10-29 21:05                         ` Pavel Machek
2016-10-29 21:07                           ` Daniel Gruss
2016-10-29 21:45                             ` Pavel Machek
2016-10-29 21:49                               ` Daniel Gruss
2016-10-29 22:01                                 ` Pavel Machek
2016-10-29 22:02                                   ` Daniel Gruss
2016-10-31  8:27                 ` Pavel Machek
2016-10-31 14:47                   ` Mark Rutland
2016-10-31 21:13                     ` Pavel Machek
2016-10-31 22:09                       ` Mark Rutland
2016-11-01  6:33                   ` Ingo Molnar
2016-11-01  7:20                     ` Daniel Micay
2016-11-01  7:53                     ` Daniel Gruss
2016-11-01  8:10                     ` Pavel Machek
2016-11-01  8:13                       ` Daniel Gruss

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