From nobody Sun Dec 14 11:35:36 2025 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 96D1C204687 for ; Tue, 4 Feb 2025 05:21:45 +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=1738646507; cv=none; b=e54zBT0cfGegJG3s6f8XTkDfUlxZXvLXRX9AHV8M4tKsphnffUEgiDMU3YRAzlixxoElubKunHof4jMqzCXLatYH1U/bK/EQSs0+0j7VlqIRe1m3/YUn8KKud1I4KGwiZrmcNopEU3un6a4pJifRdvRdmVx5Y6bon9xzHuD/Ze4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738646507; c=relaxed/simple; bh=8otb0KKbmGHKVolYJnJWTGAB7EZCUUlADsUx9BPsyUU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ENh2Lko6YFbWCxaNhf5j6+oLlsI0XWTwLw1eJUcv0pX8Df5tDhzhICZKgN9hwpN2UYTEO6vkSeaO8vf7n22DU/XoHvuq8bfibOWiaiv0t41a/PJwQgoihocgJD2lpVUCLGCwq+Mx7gaQMWW11S/c4pdqTxOtegQXxUkHfdi7esY= 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=kreWNwFy; 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="kreWNwFy" 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=kreWNwFyK5821rHUDHSMQe7atO q3u8HeB6yrpkR4c1CFMFEwRNtpUdDNqz6tRbIu5LTuYRlQPTQc0eXGfqQ6OV9INLGsvK1mMjmS6NR LWICZHene/GUuJEunC8sTAQd6Hvkwx058SYM6u2S4ssT0+6wUIkiHGka1WNf7gt18IVYRXdRJcGXU kKMegLFr80TqSz5YpH/F5dSgEMCc38F4B+b4R+ap66dQiTTksTFw7pyfOpvMkqq+ovnaapEeHtDSG MOmTAD+82sUKuFz/f00ze1XeFM4Z1kGz2gy37Y/DoH4rDsmGLaCfclffWG2XWStrKYcR6sB5OT3Ih 1bI+IRuA==; 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 1tfBNN-003J2X-Ob; Tue, 04 Feb 2025 06:21:40 +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 v4 7/7] sched_ext: Print core event count in scx_qmap scheduler Date: Tue, 4 Feb 2025 14:20:57 +0900 Message-ID: <20250204052057.67776-8-changwoo@igalia.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250204052057.67776-1-changwoo@igalia.com> References: <20250204052057.67776-1-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