From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6919450737082630144 X-Received: by 2002:a05:6000:1362:: with SMTP id q2mr10983302wrz.341.1611230190510; Thu, 21 Jan 2021 03:56:30 -0800 (PST) X-BeenThere: isar-users@googlegroups.com Received: by 2002:a7b:c191:: with SMTP id y17ls842237wmi.3.canary-gmail; Thu, 21 Jan 2021 03:56:29 -0800 (PST) X-Google-Smtp-Source: ABdhPJzGjbALVsJQD027fMHL+I7xBsDQTZdHQ07GZPsSPQupHzUR+PjDaLSVnDZwearzpAeWhVJN X-Received: by 2002:a05:600c:4e91:: with SMTP id f17mr8624544wmq.142.1611230189523; Thu, 21 Jan 2021 03:56:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611230189; cv=none; d=google.com; s=arc-20160816; b=UhrZ2FnIb40rD2t2AWl8vxzI86GGuTmKOZWrg3hxAZcxjZHGoRFYCZ3HGUv00qAsZf 9J5zEPqPJldqBfNKxF9CNE2uduVyGpanPGYnNJZ8mz3FExwnqWvZzpCwrUzExWYwfYjr CnYjbVGzwD06Ig9VulpaliX0q2GECkgtYOOTJ/9C5kPDOQciIruz6JeuLTecki6+vtXu 3mksk4Dg8KC/GrPq2gIbIsHb5EYGBjvncP0/I/1k4OB7mq+lBzA82tPmoeacKV5CmjuU EBWvNEE+kCC0kt7r8xUS55VqvSfOfzezJHI5lm6jqmphVvcajfPCy9t6gYOPa9ViZATI 2b+Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:to:subject; bh=fuunnF8OSJibetqjpIR1TvaFEmnvcf3eJ5AyPdKzV4U=; b=bTyH2JZzcDTisLBqXlBw1KpsiOmIqsp0TEu93enUNPM4eRir2/1dQtOS5VFz+6hmzy Z/LkwENx0D6N2SjV2U7hWLP4ox78OpYybBGFHCe4n17SovgtMdQ9rlloUoCH2tb48lET e6vCT/Ftwc1Tk1h7xNd+uBS/nj68zgEAEq2b8cFfsHIGEUu1LLKzxQEUHuQuvmkvwilA aAW59qaj8PeaPeNq824tDBhYA6EnEXgdmvY9FDWgKZAbfdsRluD9Z844fhrlGxrj57KJ t5yEte2/FY8lpQrKnR4AwsTzK6vnWfkOsp8xkqN2MwXROr1zXqKujynDXFu3F1I5/R43 IQxQ== ARC-Authentication-Results: i=1; gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Return-Path: Received: from thoth.sbs.de (thoth.sbs.de. [192.35.17.2]) by gmr-mx.google.com with ESMTPS id s74si307358wme.0.2021.01.21.03.56.29 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Jan 2021 03:56:29 -0800 (PST) Received-SPF: pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) client-ip=192.35.17.2; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Received: from mail2.sbs.de (mail2.sbs.de [192.129.41.66]) by thoth.sbs.de (8.15.2/8.15.2) with ESMTPS id 10LBuSEp027273 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 21 Jan 2021 12:56:29 +0100 Received: from [167.87.77.241] ([167.87.77.241]) by mail2.sbs.de (8.15.2/8.15.2) with ESMTP id 10LBuSOS029171; Thu, 21 Jan 2021 12:56:28 +0100 Subject: Re: [PATCH v2 0/2] RFC: Package perf from linux kernel tools To: "[ext] Felix Moessbauer" , isar-users@googlegroups.com References: <20210121105224.26285-1-felix.moessbauer@siemens.com> From: Jan Kiszka Message-ID: Date: Thu, 21 Jan 2021 12:56:28 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: <20210121105224.26285-1-felix.moessbauer@siemens.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TUID: Mcbbg3eurC8A On 21.01.21 11:52, [ext] Felix Moessbauer wrote: > Hi, > > thanks for your input that is reflected in the following patchsets. > > Changes since v1: > > - package as part of kernel recipe > - put python patch in dedicated commit > - add support for 5.4 kernels > - enable users to provide custom patches > > One pain point is still that we have to copy the patches > from upstream debian. IMO it would be better to just fetch > them, but then we would have to somehow map to a branch on > salsa. Any recommendations? > The patches are targeting the kernel sources, right? Then upstream the features that we are missing from the kernel. After that, we will "only" have to deal with a shrinking number of backports for which we can provide a view references. When keeping the patches downstream, we will soon have a huge number of additional patches to carry - or perf support will even bitrot again with newer kernels. Jan -- Siemens AG, T RDA IOT Corporate Competence Center Embedded Linux