From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Desfossez Subject: blog post: Monitoring real-time latencies Date: Wed, 6 Jan 2016 17:04:28 -0500 Message-ID: <20160106220428.GA16537@sinkpad.home.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: lwn@lwn.net To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org Hi, Here is a blog post related to detecting and understanding high interrupt-processing latencies on real-time systems. It is based on a new project called latency_tracker that hooks on the existing kernel tracepoints and executes actions when high latency events occur. https://lttng.org/blog/2016/01/06/monitoring-realtime-latencies/ It is a work in progress, so if you are interested and/or have any comments, please let me know. Thanks, Julien