From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) (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 B9E7224A7F6 for ; Thu, 16 Jan 2025 15:16:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.60.130.6 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737040574; cv=none; b=n7eERrYXLGrZ1XkCfHkwNuFm6QjKmpmyVg8bGskci9btN6lCCdHY45CsFiQk8ITrKQ/bZt8feya788Spf/tZy2Ja63VA+5+vUHJw6CsrZAJzzyP0R7g5KBy5ElTmCiU2AZ1xjcHEaX54CNT/khgCsngDfryTUOlRCyj8CPGdsAs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737040574; c=relaxed/simple; bh=n8OG6Q3xMvPRDim9z7KUB1iTDEeAs/Xrdb1kiBSlirY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Kj4kLftnveoePagRU4KDgV6ulQF5UQt1MtrV1V339i26KsJOdnsqyd/UvLZNnqeMLn4IZ+ZOWMHOM52g8O0hwBb/fgDgwzVzW9DAQGJ4jDeNH57Wv2d7tzjkx2aD0ScjrrbE/NHf2BoRehS83IRo5KYSy01TM+Mppxnrl/MNDac= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=R8xEWCck; arc=none smtp.client-ip=178.60.130.6 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="R8xEWCck" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject: Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=dn1H1BqgOyHrjn/PbP0kTDtl4wuk6heqY3LCvO467/M=; b=R8xEWCckYilCB8L3DpjhK/JadM vga4OX+HIA7yaTKWAC3Ae9KGYeoYsPV5ABHZNauKNEOHCv/kfsnmKItOJS3Ee6x9jemS2YaddyHCA CcULa5EpaeVDjcOSpQsrRTxOkVOFzexOibIG5FkDzOFZ1G7y0OFDUWHm793omJKxX6hUgBObne2r4 zRZ6RLA3lLbvKHoQ3t0OrtSPvQqR2gGB2TlHfjZ6ZH2E4fZwttxwFPSTvzarvHSWD5ea6ICPWDj78 aew1aLzk2FE+hveEGT8xQGkbJIFE68CNuWpYoooXWV5lbjlOae5JM6gzThF/fZXZT3PB9VCWHlgQM kPnU/PhA==; Received: from [58.29.143.236] (helo=localhost) by fanzine2.igalia.com with utf8esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1tYRbB-00Gi0K-R3; Thu, 16 Jan 2025 16:15:58 +0100 From: Changwoo Min To: tj@kernel.org, void@manifault.com, arighi@nvidia.com Cc: kernel-dev@igalia.com, linux-kernel@vger.kernel.org, Changwoo Min Subject: [PATCH 0/7] sched_ext: Implement core event counters Date: Fri, 17 Jan 2025 00:15:36 +0900 Message-ID: <20250116151543.80163-1-changwoo@igalia.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The sched_ext core often has to override the BPF scheduler decisions, and some events could be interesting but not easily visible. This patchset aims to address such a problem in the following manner: - Introduce an infrastructure to collect such events in a scalable and extensible way and to expose the collected events to the BPF scheduler in a compatible way. - Define five events to be collected. - Modify an scx scheduler to demonstrate the usage of the new BPF APIs. Changwoo Min (7): sched_ext: Implement event counter infrastructure and add an event sched_ext: Add an event, SCX_EVENT_OFFLINE_LOCAL_DSQ sched_ext: Add an event, SCX_EVENT_CNTD_RUN_WO_ENQ sched_ext: Add an event, SCX_EVENT_ENQ_LOCAL_EXITING sched_ext: Add an event, SCX_EVENT_RQ_BYPASSING_OPS sched_ext: Add scx_bpf_event_stat() and scx_read_event() for BPF schedulers sched_ext: Print core event count in scx_central scheduler kernel/sched/ext.c | 173 ++++++++++++++++++++++- tools/sched_ext/include/scx/common.bpf.h | 4 + tools/sched_ext/scx_central.bpf.c | 18 +++ 3 files changed, 190 insertions(+), 5 deletions(-) -- 2.48.1