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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E054FC00140 for ; Tue, 26 Jul 2022 20:35:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239766AbiGZUfz (ORCPT ); Tue, 26 Jul 2022 16:35:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231529AbiGZUfy (ORCPT ); Tue, 26 Jul 2022 16:35:54 -0400 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D173910CB; Tue, 26 Jul 2022 13:35:53 -0700 (PDT) Received: by mail-wm1-f41.google.com with SMTP id v67-20020a1cac46000000b003a1888b9d36so66518wme.0; Tue, 26 Jul 2022 13:35:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rzfldDnwiZ1L6vukyYNiW1lGtHYIp/Q69JeDkFAi97M=; b=NrBKrq5r54CNRqCiHqc+b0XCUq+6TNDZRGDtHsxLbYGlx7g2URPcV3bKsqigURnhDk xLN9L/OSOiI/ApnuRADRiey8zBDOAl16OsZwMWxB1hqQRRG4YiaBpMPfqKa7RxArAB9C 1iLMkphn+eyY77ecHJ50QhdbGN3LdA0aBrjJ24Ll8FjNbs+o+aswEBenYfCoXpK/9hgM wAo5uts4yAa8FDtmUNPMEGS9A9WUE+mdXgAXgwHKYFqFd0LufUcOScwhdX4TotHCdNkW 51xMUhp8Pu8RBrQrx0Q1LnBpWIBOo4sMe043enOzzBITyUBbqa2K6+QgJOeOQiIDWhGy 6vyw== X-Gm-Message-State: AJIora8G2l+MeNPHMiNgOxDa/BBLsbbykbEu3UxotVVNZ65Io3v2eAnA bQC60pfwV0LSJj6sVy3q1foilSrtg5ohocCOJhw= X-Google-Smtp-Source: AGRyM1tmpHDUGYkF3Pa0LuFMVPwSUfzWWt+oKsCfgWxV9rShxvWw0PrOPEUryVbTGeQlSFOd0x7JI+YXckH6bcc0s5E= X-Received: by 2002:a05:600c:2d4c:b0:3a3:22c0:c3dd with SMTP id a12-20020a05600c2d4c00b003a322c0c3ddmr618767wmg.107.1658867752308; Tue, 26 Jul 2022 13:35:52 -0700 (PDT) MIME-Version: 1.0 References: <20220725104220.1106663-1-leo.yan@linaro.org> In-Reply-To: From: Akemi Yagi Date: Tue, 26 Jul 2022 13:35:40 -0700 Message-ID: Subject: Re: [PATCH] perf scripts python: Let script to be python2 compliant To: Arnaldo Carvalho de Melo Cc: Ian Rogers , Alan Bartlett , Leo Yan , Peter Zijlstra , Ingo Molnar , linux-perf-users@vger.kernel.org, ElRepo , Jiri Olsa , Mark Rutland , Alexander Shishkin , Namhyung Kim , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org On Tue, Jul 26, 2022 at 12:43 PM Arnaldo Carvalho de Melo wrote: > > Em Tue, Jul 26, 2022 at 10:52:31AM -0700, Ian Rogers escreveu: > > So I'm somewhat concerned about perf supporting unsupported > > distributions and this holding the code base back. RHEL7 was launched > > 8 years ago (June 10, 2014) and full support ended 3 years ago (August > > 6, 2019) [1]. Currently RHEL7 is in "Maintenance Support or > > Maintenance Support 2" phase which is defined to mean [2]: [...] > In this specific supporting things that people report using, like was > done in this case, isn't such a big problem. > > Someone reported a problem in a system they used, the author of the code > in question posted a patch allowing perf to be used in such old systems, > doesn't get in the way of newer systems, small patch, merged, life goes > on. > > Sometimes some organizations are stuck with some distro till they can go > thru re-certifications, bidding for new hardware, whatever, and then > they want to continue using the latest perf on those systems because > they want to benefit from new features we're working on that work on > such systems. If the cost is small, like in this case, I see no problems > to have perf working on such older systems. > > - Arnaldo Just wanted to make a note about the "old" systems. While RHEL 7 might be regarded as "old" in general, it may not be so in the world of Enterprise Linux. A graph of EPEL mirror stats [1], while it is from about a year ago, shows EL 7 (RHEL 7 and its rebuilds) has a huge user base and was still growing quite fast. By the way, my main workstation runs RHEL 7. ;-) Akemi [1] https://twitter.com/mattdm/status/1447224008831811588