From: "H. Peter Anvin" <hpa@zytor.com>
To: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: "Thomas Gleixner (tglx@linutronix.de)" <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"rostedt@goodmis.org" <rostedt@goodmis.org>,
"'mingo@elte.hu' (mingo@elte.hu)" <mingo@elte.hu>,
"x86@kernel.org" <x86@kernel.org>,
"dle-develop@lists.sourceforge.net"
<dle-develop@lists.sourceforge.net>,
Satoru Moriya <satoru.moriya@hds.com>
Subject: Re: [PATCH v4] trace,x86: add x86 irq vector tracepoints
Date: Mon, 24 Sep 2012 20:38:17 -0700 [thread overview]
Message-ID: <50612729.2080307@zytor.com> (raw)
In-Reply-To: <A5ED84D3BB3A384992CBB9C77DEDA4D41385F33C@USINDEM103.corp.hds.com>
On 09/21/2012 05:40 PM, Seiji Aguchi wrote:
>
> Those x86 specific ones are not really frequently raised vectors, so
> enabling them all won't affect performance and readability of the
> traces too much.
>
... except the cost can be reduced to zero *AND* be made into a more
general mechanism by simply hooking the IDT.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2012-09-25 3:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-22 0:40 [PATCH v4] trace,x86: add x86 irq vector tracepoints Seiji Aguchi
2012-09-25 3:38 ` H. Peter Anvin [this message]
2012-09-27 22:33 ` Seiji Aguchi
2012-09-28 2:25 ` H. Peter Anvin
2012-10-02 19:10 ` Seiji Aguchi
2012-10-05 14:13 ` Steven Rostedt
2012-10-06 0:16 ` H. Peter Anvin
2012-10-06 2:57 ` Steven Rostedt
2012-10-06 13:05 ` Borislav Petkov
2012-10-06 14:51 ` Steven Rostedt
2012-10-06 17:32 ` Borislav Petkov
2012-10-06 18:26 ` Steven Rostedt
2012-10-06 23:33 ` Borislav Petkov
2012-10-07 15:25 ` H. Peter Anvin
2012-10-11 17:04 ` Seiji Aguchi
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