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Date: Wed, 16 Apr 2025 14:06:11 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Junxuan Liao <ljx@cs.wisc.edu>, linux-trace-kernel@vger.kernel.org,
 linux-kernel@vger.kernel.org, x86@kernel.org, Thomas Gleixner
 <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Dave Hansen
 <dave.hansen@linux.intel.com>, "H. Peter Anvin" <hpa@zytor.com>, Masami
 Hiramatsu <mhiramat@kernel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@efficios.com>, "Paul E. McKenney" <paulmck@kernel.org>
Subject: Re: [PATCH] x86/tracing: introduce enter/exit tracepoint pairs for
 page faults
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On Wed, 16 Apr 2025 14:01:15 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> > Ok, so AFAIU, this gives you how long user page faults take and apparently for
> > someone this is important info.  
> 
> This was just a simple example. I rather see where in the kernel it happens.
                                                      ^^^^^^^^^^^^
                                                     user space

> I can still use the synthetic events and user stack trace to find where the
> big faults occur.