From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0492727456 for ; Fri, 17 Jan 2025 01:39:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737077958; cv=none; b=rRV69YzvzniG4ESw5BrKf3iQio/4m/RZQk0Cx7Lml6C8jgzy58FEARplTY1AIr1UC9i7qqvthpmP2DggtZ9CYAW8EhP2t02qthQ2nInMSblhDFg5LCS3mUwmD/RqtedlvAFMetW5HrIp6S5MjfW3teXtem1YRi2IuHNlrEiizFk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737077958; c=relaxed/simple; bh=7E+pYhUn88Ga0UP8zJPmvp8tuON3QsLBEI+d8ZERfi4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=UHNw6z2kqKR4p4nGpPTlk2zKe/OiZheHwaoisb81au3OJm8J1wMD02CzbMsmgF4rXIDw6BKL4tkr9rYCc8AUpyAn88do1aplOTImJZg6aptZR5RgBjRCNjnkOtmacwUD7s4IvZO/VTE+L+uYaEQ7ndwtvmmOj+FyM9E/jYesYIc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BzwGQrSf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BzwGQrSf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AFDCDC4CED6; Fri, 17 Jan 2025 01:39:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737077957; bh=7E+pYhUn88Ga0UP8zJPmvp8tuON3QsLBEI+d8ZERfi4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BzwGQrSfkh38tHI3qvdj9FVDUxdUAZdTjuay8yFLvU05bS622tLDt435ykO1EZgEo fHQNIp6hDR/H/6qCHB1qjL0AEiQnL+uiK0BqmBtV3qohZ73ExVseWyPUY4+0RvGXpp F5GzBHoyXjFk8a0OOcbEyAZunGusUC8tqpaPTAbVI+z1CVWNXMJbQb8j5Qyrkukjpb dfwXMJAdDMnPWaFvrSRf1XNnyKpRygLt96wqV06ikPOhal5sEuMwOezntenrpY4mGb eFw93vmuo/xJbTvnGG+Rgs+ap+OvZymoL8KN8tS3xr4duPFTs847OniJLChR6cM9nh Gsvb1nJw/eDgg== Date: Thu, 16 Jan 2025 15:39:16 -1000 From: Tejun Heo To: Changwoo Min Cc: void@manifault.com, arighi@nvidia.com, kernel-dev@igalia.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/7] sched_ext: Add an event, SCX_EVENT_CNTD_RUN_WO_ENQ Message-ID: References: <20250116151543.80163-1-changwoo@igalia.com> <20250116151543.80163-4-changwoo@igalia.com> 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-Disposition: inline In-Reply-To: <20250116151543.80163-4-changwoo@igalia.com> On Fri, Jan 17, 2025 at 12:15:39AM +0900, Changwoo Min wrote: > Add a core event, SCX_EVENT_CNTD_RUN_WO_ENQ, which represents how many > times a task is continued to run without ops.enqueue() when SCX_OPS_ENQ_LAST > is not set. > > Signed-off-by: Changwoo Min > --- > kernel/sched/ext.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c > index 8054e4e5ed0c..909f12a41934 100644 > --- a/kernel/sched/ext.c > +++ b/kernel/sched/ext.c > @@ -1473,6 +1473,12 @@ struct scx_event_stat { > * the meantime. In this case, the task is bounced to the global DSQ. > */ > u64 OFFLINE_LOCAL_DSQ; > + > + /* > + * If SCX_OPS_ENQ_LAST is not set, the number of times that a task > + * continued to run because there were no other tasks on the CPU. > + */ > + u64 CNTD_RUN_WO_ENQ; DISPATCH_KEEP_LAST? -- tejun