Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751243AbdILBuI (ORCPT ); Mon, 11 Sep 2017 21:50:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:58702 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751069AbdILBuG (ORCPT ); Mon, 11 Sep 2017 21:50:06 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A25BA214C5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mhiramat@kernel.org Date: Tue, 12 Sep 2017 10:50:03 +0900 From: Masami Hiramatsu To: Tom Zanussi Cc: rostedt@goodmis.org, tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org, vedang.patel@intel.com, bigeasy@linutronix.de, joel.opensrc@gmail.com, joelaf@google.com, mathieu.desnoyers@efficios.com, baohong.liu@intel.com, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: [PATCH v2 00/40] tracing: Inter-event (e.g. latency) support Message-Id: <20170912105003.860ff7b4cd9bfd3e4d1796b1@kernel.org> In-Reply-To: References: X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1654 Lines: 46 On Tue, 5 Sep 2017 16:57:12 -0500 Tom Zanussi wrote: > Hi, > > This is V2 of the inter-event tracing patchset. > > There are too many changes to list in detail, most of them directly > addressing input from V1, but here are the major changes from V1 > (thanks to everyone who reviewed V1 and thanks to both Vedang Patel > and Baohong Liu for their contributions and included patches): [..] > > Documentation/trace/events.txt | 431 ++++ > include/linux/ring_buffer.h | 17 +- > include/linux/trace_events.h | 24 +- > include/linux/tracepoint-defs.h | 1 + > kernel/trace/ring_buffer.c | 126 +- > kernel/trace/trace.c | 205 +- > kernel/trace/trace.h | 25 +- > kernel/trace/trace_events.c | 51 +- > kernel/trace/trace_events_hist.c | 4472 +++++++++++++++++++++++++++++++---- > kernel/trace/trace_events_trigger.c | 53 +- > kernel/trace/trace_kprobe.c | 18 +- > kernel/trace/trace_probe.c | 86 - > kernel/trace/trace_probe.h | 7 - > kernel/trace/trace_uprobe.c | 2 +- > kernel/trace/tracing_map.c | 229 +- > kernel/trace/tracing_map.h | 20 +- > kernel/tracepoint.c | 18 +- > 17 files changed, 5073 insertions(+), 712 deletions(-) There seems no Makefile and Kconfig changes. Would this mean we just need CONFIG_HIST_TRIGGERS=y to enable it? I think you'd better update the HIST_TRIGGER's description so that user can notice which should be enabled for inter-event tracing. Thank you, -- Masami Hiramatsu