From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 63D7F1F2B88; Sun, 11 Oct 2026 00:43:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791679421; cv=none; b=WTIpkwvOqM4uXaIKcZZMmQofp8Uru/cdz78fXt6an4ySVvTptZ6MplRfgTCK4wqT9SbBsEUhZz0l7E3/RNz13eJ24woDTAvCOHObbowm/D7fEPSrItxWq2em6jXQci4UFcQUHyQQj99mK0wdsRac54upNTur9dIpPm3XsosWin8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791679421; c=relaxed/simple; bh=/KsFtipBILUNYzNasIl7zE2ZOeBAmnFbRIPAdk5YnUw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oZpkHXm+T+j4qYdAsOAhcAYrQMYTXFXNeGbrMUC0MswrliFH+C7QD8dJJVg8u/BiIyHy8da9nyAZuvdz6Bk70Sgvu/wYqc/BjtIxVrj/ry52KjABjw2BAmSVFTdl0ZP8FUPNHkY83MwH9HtAiKnqltdfyx++QJGjGXtUBgieIVE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b=ngwJqyHd; arc=none smtp.client-ip=216.40.44.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b="ngwJqyHd" Received: from omf04.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id D2E45A81FE; Sun, 11 Oct 2026 00:43:30 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf04.hostedemail.com (Postfix) with ESMTPA id D820220027; Sun, 11 Oct 2026 00:43:28 +0000 (UTC) Date: Sat, 10 Oct 2026 20:43:27 -0400 From: Steven Rostedt To: Gabriele Monaco Cc: Nam Cao , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Alexei Starovoitov , Wen Yang , Tobias Schaffner , Viktor Malik Subject: Re: [PATCH v2 09/15] tools/rv: Copy stripped bpf_atomic.h from libarena Message-ID: <20261010204327.0656cde7@226.227.38.69.naturalwireless.com> In-Reply-To: <76753c2dd66792ec6eb94d00741e61366df426cb.camel@redhat.com> References: <20261001152042.124445-1-gmonaco@redhat.com> <20261001152042.124445-10-gmonaco@redhat.com> <87ld89wtrx.fsf@yellow.woof> <4F009BB7-58C2-4AB1-8FEF-61FA4B5281A2@redhat.com> <87fqygl9we.fsf@yellow.woof> <76753c2dd66792ec6eb94d00741e61366df426cb.camel@redhat.com> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: hrppt3w6chs5ba74ce8fgdufydrbtc39 X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: D820220027 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1+w6wJ/jUT2Ykjo5cozpi1JEmT/g6EFWGM= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=goodmis.org; h=date:from:to:cc:subject:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=dkim1; bh=/KsFtipBILUNYzNasIl7zE2ZOeBAmnFbRIPAdk5YnUw=; b=ngwJqyHdMdsq9bsY9ISYUX0iUoSSaSwz4rFcZ2YdcgmH8xsOp0bMltZwrxTSKk7EDDylJaq8itO/VpP7DWnCmZ3NIs7KDI8cQT2KDBG0YtA5BjwYUmNdum8CD4wNgvQTZL/fj3rB7VgTNCsxlKbzQFFVsHGS/xoeproqQxQG6y4= X-HE-Tag: 1791679408-285809 X-HE-Meta: U2FsdGVkX1+0KjST59GDaeAUM1Hc8Eeyztp3PGY7IcoLbzSiiQGMcni+nuIJBVHaf1hu5JskQk/TfOlbRVs3gGbMhW+a/4njz3e7/X+LdQFNAPhqLOxOnJt1RHeksNHd8deiL+rUemKvxHUZvmtH1+APo+YrrfErgsOvKf5OroCvVG39e56Ni2fZG3EihUuSlCvaNiitXcZv9Prdto/CH+wCrAxr5cKhhoCxaO0YxcmMBSI6tGnXrjabRBohfjrAn5ogbf1yriSl+1w32f8LNuDz31m+lqFqSoelRsY2bckeqaX4U9iFD+KJ9xQgViQWhLRaJ5XRDy0XV2moTp4GQQtc91ELaH0L Please keep both until you know the BPF side can do everything you need. On Fri, 09 Oct 2026 12:09:42 +0200 Gabriele Monaco wrote: > There's a common belief considering BPF a prototyping playground, where "real" > things should eventually end up in the kernel. > Now, I don't agree with it (look at the many sched_ext policies used in > production), but I'd want to assess if dropping kernel support could drive users > away (e.g. industry/automotive which keeps popping out) and understand the > various not purely technical reasons. Where do you plan on storing the repository of BPF programs? One issue I have with sched_ext is that it did exactly what many people were worried about. There's a lot of schedulers out there without much collaboration. It's the "copy one close to what I want and tweak it". When I left Google, I heard there was 20 or so sched_ext schedulers doing various things for various projects. One of my main motivations for scheduler governors. -- Steve