From nobody Mon Feb 9 16:01:37 2026 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 430CA1B424F for ; Fri, 31 Jan 2025 07:10:40 +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=1738307441; cv=none; b=g3r/8JO+Ew4A78GrivsyarTLgn+gIPlUHt5eXip55Q3l1HO+fmhzsMknfC0VVxutnhywM0noJ1Nt33W7QFZSHFDVKDk+zQgEuxLj4EU/lL3/JMqwpKO3Vlyp9DBnMmgZpbdk9ZL1P4YQVQ8BOLJHJ5ItmPWIX6mWe9x4mqwHGDQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738307441; c=relaxed/simple; bh=8otb0KKbmGHKVolYJnJWTGAB7EZCUUlADsUx9BPsyUU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uu6/9D5tNdn/1xkANEzavQHtWDQXEHdZnveGdqN9K81l2XOFYN6PcoYgzStJ0p9M2aIzfoX8apK3cXVUGDI+AOxcP7yN/4EPswXf5uXQ2av64yXVEYpl5tiJ2WA2pqxwZmufVczoIINoBHCt0KG6nj96P2q5uZErLD21+MTgJM0= 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=fubl1sb/; 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="fubl1sb/" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: 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:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=PeObDfboIG5spdonwor3QD5AbHj0/Es/1OS62aZus6E=; b=fubl1sb/GRKvbkzQoYS9ASjG3r NifqygzojXTxO4kCGNEu6qHif2kFYTFUpIGebYjAPuLlWnDlqZhlqJPud62xQERplbdTSos3Tj9YB 7QYN3gZtXUDV6mTQmFExTiG1w2eUtjKd/CyH4lDo5IwWjbrx69S5c8vUwm/I7e2PDByg5A1Ni2D3e pKDSKsShmvnHicb1pvCKwDTbaEw7uf0wRzSidyNJCzBKdUk43bdYU46/P7RoT7RN27sHWch9etQ98 ZlJ1Hn/bqL8tgQ4twC17nXUj9d0lcBoWmBLR0pslk6sQCDhbooKwIT2QBzXowCqq/dzl1tzn9C9RA B/Eo5Xwg==; 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 1tdlAa-001Kak-SE; Fri, 31 Jan 2025 08:10:35 +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 v3 11/11] sched_ext: Print core event count in scx_qmap scheduler Date: Fri, 31 Jan 2025 16:09:38 +0900 Message-ID: <20250131070938.95551-12-changwoo@igalia.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250131070938.95551-1-changwoo@igalia.com> References: <20250131070938.95551-1-changwoo@igalia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Modify the scx_qmap scheduler to print the core event counter every second. Signed-off-by: Changwoo Min --- tools/sched_ext/scx_qmap.bpf.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/tools/sched_ext/scx_qmap.bpf.c b/tools/sched_ext/scx_qmap.bpf.c index 3a20bb0c014a..5edb79742e37 100644 --- a/tools/sched_ext/scx_qmap.bpf.c +++ b/tools/sched_ext/scx_qmap.bpf.c @@ -763,6 +763,8 @@ static void dump_shared_dsq(void) =20 static int monitor_timerfn(void *map, int *key, struct bpf_timer *timer) { + struct scx_event_stats events; + bpf_rcu_read_lock(); dispatch_highpri(true); bpf_rcu_read_unlock(); @@ -772,6 +774,23 @@ static int monitor_timerfn(void *map, int *key, struct= bpf_timer *timer) if (print_shared_dsq) dump_shared_dsq(); =20 + scx_bpf_events(&events, sizeof(events)); + + bpf_printk("%35s: %llu\n", "SCX_EV_SELECT_CPU_FALLBACK", + scx_read_event(&events, SCX_EV_SELECT_CPU_FALLBACK)); + bpf_printk("%35s: %llu\n", "SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE", + scx_read_event(&events, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE)); + bpf_printk("%35s: %llu\n", "SCX_EV_DISPATCH_KEEP_LAST", + scx_read_event(&events, SCX_EV_DISPATCH_KEEP_LAST)); + bpf_printk("%35s: %llu\n", "SCX_EV_ENQ_SKIP_EXITING", + scx_read_event(&events, SCX_EV_ENQ_SKIP_EXITING)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_DURATION", + scx_read_event(&events, SCX_EV_BYPASS_DURATION)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_DISPATCH", + scx_read_event(&events, SCX_EV_BYPASS_DISPATCH)); + bpf_printk("%35s: %llu\n", "SCX_EV_BYPASS_ACTIVATE", + scx_read_event(&events, SCX_EV_BYPASS_ACTIVATE)); + bpf_timer_start(timer, ONE_SEC_IN_NS, 0); return 0; } --=20 2.48.1