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Wed, 05 Dec 2018 21:46:01 -0800 (PST) Date: Thu, 6 Dec 2018 13:45:53 +0800 From: leo.yan@linaro.org To: Mathieu Poirier Subject: Re: [PATCH v1 3/5] perf cs-etm: Support for NO_SYNC packet Message-ID: <20181206054553.GB4244@leoy-ThinkPad-X240s> References: <1541912383-19915-1-git-send-email-leo.yan@linaro.org> <1541912383-19915-4-git-send-email-leo.yan@linaro.org> <20181119182759.GA608@xps15> <20181205033145.GA15964@leoy-ThinkPad-X240s> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10+31 (9cdd884) (2018-06-19) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181205_214614_387160_FFC573A0 X-CRM114-Status: GOOD ( 12.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Al Grant , Alexander Shishkin , Coresight ML , Linux Kernel Mailing List , Arnaldo Carvalho de Melo , Namhyung Kim , Robert Walker , Jiri Olsa , linux-arm-kernel , Mike Leach Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Dec 05, 2018 at 10:48:45AM -0700, Mathieu Poirier wrote: [...] > > So I think there still have some difference between TRACE_ON and > > NO_SYNC packets, TRACE_ON packet indicates the start of trace and it's > > also possible caused by tracing discontinuity; NO_SYNC packets usually > > caused by an unsynchronised state. But both of them presents > > discontinuity in perf trace data. > > > > I prefer to use two different packet types to present them, this can > > let the code to be more readable and easier to be maintained later. > > Absolutely. Make sure to get to the bottom of the story with Mike > and/or Robert before sending your next patchset. Sure, will sync with Mike/Rob. Thanks, Leo Yan _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel