From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06718C10F0E for ; Mon, 15 Apr 2019 13:59:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA9CB2087C for ; Mon, 15 Apr 2019 13:59:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727372AbfDON7U (ORCPT ); Mon, 15 Apr 2019 09:59:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55860 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726182AbfDON7U (ORCPT ); Mon, 15 Apr 2019 09:59:20 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5FA21308FC5F; Mon, 15 Apr 2019 13:59:20 +0000 (UTC) Received: from pauld.bos.csb (dhcp-17-51.bos.redhat.com [10.18.17.51]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7CC1A1091EE9; Mon, 15 Apr 2019 13:59:19 +0000 (UTC) Date: Mon, 15 Apr 2019 09:59:17 -0400 From: Phil Auld To: Slavomir Kaslev Cc: rostedt@goodmis.org, linux-trace-devel@vger.kernel.org, ykaradzhov@vmware.com, jbacik@fb.com, tstoyanov@vmware.com, slavomir.kaslev@gmail.com Subject: Re: [PATCH 0/2] Optimize pid filters and add --no-filter option Message-ID: <20190415135917.GA22646@pauld.bos.csb> References: <20190415104343.31113-1-kaslevs@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190415104343.31113-1-kaslevs@vmware.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Mon, 15 Apr 2019 13:59:20 +0000 (UTC) Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org On Mon, Apr 15, 2019 at 01:43:41PM +0300 Slavomir Kaslev wrote: > This patchset optimizes how pid filters are expressed and makes it less likely > that we overflow ftrace filters' size limit of one page. > > Slavomir Kaslev (2): > trace-cmd: Optimize how pid filters are expressed > trace-cmd: Add --no-filter option to not filter recording processes > > tracecmd/trace-record.c | 126 +++++++++++++++++++++++++++------------- > tracecmd/trace-usage.c | 1 + > 2 files changed, 87 insertions(+), 40 deletions(-) > > -- > 2.19.1 > That worked very nicely on my setup. Collapsed from len 6300+ to : WRITE: /sys/kernel/tracing/events/sched/sched_switch/filter, len 70, data "(common_pid<13247||common_pid>13088)||(next_pid<13247||next_pid>13088)" --no-filter also worked as advertised. Thanks! Acked-by: Phil Auld --