From owner-freebsd-stable@FreeBSD.ORG  Sun Dec  6 23:13:19 2009
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id CE30C106566C;
	Sun,  6 Dec 2009 23:13:19 +0000 (UTC)
	(envelope-from jeremie@le-hen.org)
Received: from smtpfb1-g21.free.fr (smtpfb1-g21.free.fr [212.27.42.9])
	by mx1.freebsd.org (Postfix) with ESMTP id A0BF98FC13;
	Sun,  6 Dec 2009 23:13:16 +0000 (UTC)
Received: from smtp1-g21.free.fr (smtp1-g21.free.fr [212.27.42.1])
	by smtpfb1-g21.free.fr (Postfix) with ESMTP id 7C9DE2E190;
	Sun,  6 Dec 2009 23:55:19 +0100 (CET)
Received: from smtp1-g21.free.fr (localhost [127.0.0.1])
	by smtp1-g21.free.fr (Postfix) with ESMTP id 1E3A4940096;
	Sun,  6 Dec 2009 23:55:11 +0100 (CET)
Received: from endor.tataz.chchile.org (tataz.chchile.org [82.233.239.98])
	by smtp1-g21.free.fr (Postfix) with ESMTP id 40ECE9400A4;
	Sun,  6 Dec 2009 23:55:09 +0100 (CET)
Received: from felucia.tataz.chchile.org (felucia.tataz.chchile.org
	[192.168.1.9])
	by endor.tataz.chchile.org (Postfix) with ESMTP id CD8FC33E79;
	Sun,  6 Dec 2009 22:55:08 +0000 (UTC)
Received: by felucia.tataz.chchile.org (Postfix, from userid 1000)
	id 93838A1275; Sun,  6 Dec 2009 22:55:08 +0000 (UTC)
Date: Sun, 6 Dec 2009 23:55:08 +0100
From: Jeremie Le Hen <jeremie@le-hen.org>
To: freebsd-stable@FreeBSD.org
Message-ID: <20091206225508.GA5494@felucia.tataz.chchile.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.5.20 (2009-06-14)
Cc: jkoshy@FreeBSD.org, jeremie@le-hen.org
Subject: Cannot allocate system-mode PMC with spec. "instructions"
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 06 Dec 2009 23:13:19 -0000

Hi list, Joseph,

__ Please Cc: me when replying, as I'm not subscribed. __

I've tried to sample my system while performing a big copy between UFS
to ZFS using the following command:
  % # pmcstat -v -S instructions -O $PWD/sample.out
  % pmcstat: ERROR: Cannot allocate system-mode pmc with specification "instructions": Invalid argument

Oddly, other generic events lead to different errors:
  % obiwan:~/tmp# pmcstat -vv -S cycles -O $PWD/sample.out
  % pmcstat: ERROR: Cannot allocate system-mode pmc with specification "cycles": Operation not supported

But for instance the following works:
  % obiwan:~/tmp# pmcstat -vv -S branches -O $PWD/sample.out 
  % ^Cobiwan:~/tmp# pmcstat -R sample.out -g
  % CONVERSION STATISTICS:
  %  #samples/total                           3110
  %  #samples/unclaimed                       87
  %  #callchain/dubious-frames                87


Additional useful informations are:

  % CPU: Intel(R) Core(TM)2 CPU          6320  @ 1.86GHz (1869.87-MHz 686-class CPU)
  %   Origin = "GenuineIntel"  Id = 0x6f6  Stepping = 6
  %   Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  %   Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  %   AMD Features=0x20000000<LM>
  %   AMD Features2=0x1<LAHF>
  %   TSC: P-state invariant

  % hwpmc: TSC/1/64/0x20<REA> IAP/2/40/0x3ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA,PRC> IAF/0/0/0x61<INT,REA,WRI>


Regards,
-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >