Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753403Ab3EIEcq (ORCPT ); Thu, 9 May 2013 00:32:46 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:58823 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751682Ab3EIEcd (ORCPT ); Thu, 9 May 2013 00:32:33 -0400 From: David Ahern To: linux-kernel@vger.kernel.org Cc: acme@ghostprotocols.net, mingo@kernel.org, fweisbec@gmail.com, peterz@infradead.org, jolsa@redhat.com, namhyung@kernel.org, xiaoguangrong@linux.vnet.ibm.com, David Ahern Subject: [PATCH 13/13] perf kvm: debug for missing vmexit/vmentry event Date: Wed, 8 May 2013 22:31:49 -0600 Message-Id: <1368073909-8825-14-git-send-email-dsahern@gmail.com> X-Mailer: git-send-email 1.7.10.1 In-Reply-To: <1368073909-8825-1-git-send-email-dsahern@gmail.com> References: <1368073909-8825-1-git-send-email-dsahern@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1854 Lines: 52 Expected to have missing events for each vcpu when perf is started. After that should not have missing events. Signed-off-by: David Ahern Cc: Arnaldo Carvalho de Melo Cc: Ingo Molnar Cc: Frederic Weisbecker Cc: Peter Zijlstra Cc: Jiri Olsa Cc: Namhyung Kim Cc: Xiao Guangrong --- tools/perf/builtin-kvm.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index d4e9124..9402c70 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -568,11 +568,22 @@ static bool handle_kvm_event(struct perf_kvm_stat *kvm, (kvm->trace_vcpu != vcpu_record->vcpu_id)) return true; - if (kvm->events_ops->is_begin_event(evsel, sample, &key)) + if (kvm->events_ops->is_begin_event(evsel, sample, &key)) { + if (vcpu_record->start_time) { + pr_debug("consecutive begin events (%s) for pid %d, vcpu %d\n", + evsel->name, sample->pid, vcpu_record->vcpu_id); + } return handle_begin_event(kvm, vcpu_record, &key, sample->time); + } + - if (kvm->events_ops->is_end_event(evsel, sample, &key)) + if (kvm->events_ops->is_end_event(evsel, sample, &key)) { + if (vcpu_record->start_time == 0) { + pr_debug("consecutive end events (%s) for pid %d, vcpu %d\n", + evsel->name, sample->pid, vcpu_record->vcpu_id); + } return handle_end_event(kvm, vcpu_record, &key, sample); + } return true; } -- 1.7.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/