From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-trace-devel-owner@vger.kernel.org Received: from mail.kernel.org ([198.145.29.99]:45528 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933574AbdLRVnM (ORCPT ); Mon, 18 Dec 2017 16:43:12 -0500 Date: Mon, 18 Dec 2017 16:43:08 -0500 From: Steven Rostedt To: David Hildenbrand Cc: Linux Kernel Mailing List , Linux Trace Devel Subject: Re: [PATCH v1] trace-cmd: introduce --initital-delay for record command Message-ID: <20171218164308.658924b8@gandalf.local.home> In-Reply-To: <55abd06d-1cac-8deb-d9be-f661f0ba30e1@redhat.com> References: <20171218112412.11898-1-david@redhat.com> <20171218104158.22519a7e@gandalf.local.home> <7b89f63f-3a6f-4182-c26a-934514ba5670@redhat.com> <20171218125231.445d8fa2@gandalf.local.home> <55abd06d-1cac-8deb-d9be-f661f0ba30e1@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-trace-devel-owner@vger.kernel.org List-ID: On Mon, 18 Dec 2017 21:56:33 +0100 David Hildenbrand wrote: > I'll have a try tomorrow if I I''lose events with 20MB buffers per CPU > when recording more than 60 seconds (on a very active system with > mentioned scheduler rtaces being turned on). > Another option is to add a '-w' option to record that causes the recorders (what reads the data) to "wait" or force it to sleep even if it did read something. I'm fine with that. -- Steve