From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756010Ab1FTWPe (ORCPT ); Mon, 20 Jun 2011 18:15:34 -0400 Received: from claw.goop.org ([74.207.240.146]:53655 "EHLO claw.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755978Ab1FTWP2 (ORCPT ); Mon, 20 Jun 2011 18:15:28 -0400 From: Jeremy Fitzhardinge To: Xen Devel Cc: Konrad Rzeszutek Wilk , Steven Rostedt , Ingo Molnar , Linux Kernel Mailing List , Jeremy Fitzhardinge Subject: [PATCH 00/15] xen: use tracing to replace ad-hoc debug/stats stuff Date: Mon, 20 Jun 2011 15:14:56 -0700 Message-Id: X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jeremy Fitzhardinge Hi all, This series (RFC for 3.1) introduces a set of trace events to keep track of what's going on within the Xen code. This allows us to replace a pile of ad-hoc debug and stats code. The latter part of the series implements some improvements the better tracing highlighted, specifically to reduce hypercall overhead by making multicalls cheaper and to increase the multicall batch size. Also at git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git upstream/xen-tracing2 Thanks, J Jeremy Fitzhardinge (15): trace/xen: add skeleton for Xen trace events xen/multicalls: remove debugfs stats xen/trace: set up tracepoint skeleton xen/trace: add multicall tracing xen/trace: add mmu tracepoints xen/trace: add ptpage alloc/release tracepoints xen/trace: add xen_pgd_(un)pin tracepoints xen/trace: add segment desc tracing xen/trace: add tlb flush tracepoints xen/mmu: use extend_args for more mmuext updates xen/mmu: tune pgtable alloc/release xen/multicalls: disable MC_DEBUG xen/multicalls: add unlikely around slowpath in __xen_mc_entry() xen/multicall: special-case singleton hypercalls xen/multicall: move *idx fields to start of mc_buffer arch/x86/include/asm/xen/hypercall.h | 22 ++ arch/x86/include/asm/xen/trace_types.h | 18 + arch/x86/xen/Makefile | 2 +- arch/x86/xen/enlighten.c | 16 +- arch/x86/xen/mmu.c | 139 +++++++-- arch/x86/xen/multicalls.c | 169 +++-------- arch/x86/xen/multicalls.h | 6 + arch/x86/xen/trace.c | 61 ++++ include/trace/events/xen.h | 534 ++++++++++++++++++++++++++++++++ 9 files changed, 817 insertions(+), 150 deletions(-) create mode 100644 arch/x86/include/asm/xen/trace_types.h create mode 100644 arch/x86/xen/trace.c create mode 100644 include/trace/events/xen.h -- 1.7.5.4