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 D4938C7EE2A for ; Fri, 18 Aug 2023 16:21:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378587AbjHRQV1 (ORCPT ); Fri, 18 Aug 2023 12:21:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378628AbjHRQVO (ORCPT ); Fri, 18 Aug 2023 12:21:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC69030F1 for ; Fri, 18 Aug 2023 09:21:13 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 525C261D97 for ; Fri, 18 Aug 2023 16:21:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55132C433C8; Fri, 18 Aug 2023 16:21:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692375672; bh=F4hu+ZSGYoWCRdUdfsCxfVt10gS2gebSaptHFSyZ0rg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=cjDtFUU8eNav46CbF/zksDLJ6ng2War+LGduWysDW0s+Lmkcq0/Ke9m7Z18+YGblP /oWBnuokIWWyib8Mn6QEdc8eXYAzMZih5TbtFr0jR2yDbxfinK0rNJdM/hK/MIMG5W aPnFZ7D01SZc3UFJAhPhCvdGD+EL9pJx0RhnSl2ZKqwfAxZR9m5S50CtMA6N8h9ZGo Hu4FbDMijaPofsi6x1jLdLik5IoFWNUlGaa6ISTa5yZ+kR1rNI8AeLGAva2tPVk3iF dXKkydImC+K2Zp9302csEoN7KQSu3pZ652ghYJIHFbRyKBrpzOCPar0rHdQWsXUo+V awXViSsjHW7wQ== Date: Fri, 18 Aug 2023 09:21:11 -0700 From: Jakub Kicinski To: Sebastian Andrzej Siewior Cc: Yan Zhai , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, "David S. Miller" , Eric Dumazet , Paolo Abeni , Peter Zijlstra , Thomas Gleixner , Wander Lairson Costa , Jesper Dangaard Brouer Subject: Re: [RFC PATCH net-next 0/2] net: Use SMP threads for backlog NAPI. Message-ID: <20230818092111.5d86e351@kernel.org> In-Reply-To: <20230818145734.OgLYhPh1@linutronix.de> References: <20230814093528.117342-1-bigeasy@linutronix.de> <20230814112421.5a2fa4f6@kernel.org> <20230817131612.M_wwTr7m@linutronix.de> <20230818145734.OgLYhPh1@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 18 Aug 2023 16:57:34 +0200 Sebastian Andrzej Siewior wrote: > As of now Jakub isn't eager to have it and my testing/ convincing is > quite limited. If nobody else yells that something like that would be > helpful I would simply go and convince PeterZ/tglx to apply 2/2 of this > series. As tempting as code removal would be, we can still try to explore the option of letting backlog processing run in threads - as an opt-in on normal kernels and force it on RT? But it would be good to wait ~2 weeks before moving forward, if you don't mind, various core folks keep taking vacations..