From nobody Sun Dec 14 11:34:33 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 9AEA81E0087 for ; Tue, 4 Feb 2025 05:21:25 +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=1738646487; cv=none; b=XaWI6Er4NMfrujgp18AdrmuXCApZMORxnUiMx5i+T3OSv9ibMAd5OFTmmhjFzhzlV+zsdnrp3kmLnEf5Sq8MfWCdDTOtWgkvd9PAVI5Zy+AIcuDwArEXsDMK33HSDTO04xcPYbvtnxmnL/pXyktKumZrC3y+YdlfPJKFXaTfZgo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738646487; c=relaxed/simple; bh=HCX/BNAL4qRCt8je8Retbqx3rKU6NviY86+g6plpXFU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pdCUd4jQce0R5zAkOQb25KRXubDlCFbE5/MbLBrNCy0H57iT+L/N76rsnTvJgUPi+2PcnAwU0x95nB+OV/bRP7M5w+0Z4EIteXffzI+0pRpCA4WG0TO19fFcp9rslJ/pJkoMbizloZvFBB5WNI8H6vDDx/Tu4jNSbANc84p2ziI= 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=IkE72nAS; 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="IkE72nAS" 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=j75DTvq3rhQnrq8Yf/VVWB6T9WCeRj/6cxrPZNTRjxs=; b=IkE72nASx/sVR/WnenxHHGlnnp iE2B6/Tlc6SZIpoBMNn53Q1PMXose06tioYzA6i1QM2kPNVLuTMvUHYOKZcdIb+mYUfpBdnUFDSZV Fp5p3qbcq7OUK++CwLmDOFpvE/yRZq3wc0I9yJymzWm6lRoGCHGAHxesJWZTmz45f54WQr0wCC6f1 OhKBSzx6lmi7j3puc/vMGuvvZXoHTIxStQ9Jvz4unJ1cvQeStNceLU4iaYEkgIkaUcSTi5Gwjhyvd QYj+JWLY/+Td9kk1vMTSVMGsR8Ga9b7gJWPP/8yDtIPIlCoBYvUCwpR1CwNa7nc6QlqLZE/GQHoou UVawUY0w==; 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 1tfBN1-003J1h-4O; Tue, 04 Feb 2025 06:21:17 +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 2/7] sched_ext: Add an event, SCX_EV_BYPASS_ACTIVATE Date: Tue, 4 Feb 2025 14:20:52 +0900 Message-ID: <20250204052057.67776-3-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" Add a core event, SCX_EV_BYPASS_ACTIVATE, which represents how many times the bypass mode has been triggered. Signed-off-by: Changwoo Min --- kernel/sched/ext.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index c72ba405a1d3..377c2e99cf4f 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -1467,6 +1467,11 @@ struct scx_event_stats { * is dispatched to a local DSQ when exiting. */ u64 SCX_EV_ENQ_SKIP_EXITING; + + /* + * The number of times the bypassing mode has been activated. + */ + u64 SCX_EV_BYPASS_ACTIVATE; }; =20 /* @@ -4399,6 +4404,7 @@ static void scx_ops_bypass(bool bypass) WARN_ON_ONCE(scx_ops_bypass_depth <=3D 0); if (scx_ops_bypass_depth !=3D 1) goto unlock; + scx_add_event(SCX_EV_BYPASS_ACTIVATE, 1); } else { scx_ops_bypass_depth--; WARN_ON_ONCE(scx_ops_bypass_depth < 0); @@ -4994,6 +5000,7 @@ static void scx_dump_state(struct scx_exit_info *ei, = size_t dump_len) scx_dump_event(s, &events, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE); scx_dump_event(s, &events, SCX_EV_DISPATCH_KEEP_LAST); scx_dump_event(s, &events, SCX_EV_ENQ_SKIP_EXITING); + scx_dump_event(s, &events, SCX_EV_BYPASS_ACTIVATE); =20 if (seq_buf_has_overflowed(&s) && dump_len >=3D sizeof(trunc_marker)) memcpy(ei->dump + dump_len - sizeof(trunc_marker), @@ -7131,6 +7138,7 @@ __bpf_kfunc void scx_bpf_events(struct scx_event_stat= s *events, scx_agg_event(&e_sys, e_cpu, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE); scx_agg_event(&e_sys, e_cpu, SCX_EV_DISPATCH_KEEP_LAST); scx_agg_event(&e_sys, e_cpu, SCX_EV_ENQ_SKIP_EXITING); + scx_agg_event(&e_sys, e_cpu, SCX_EV_BYPASS_ACTIVATE); } =20 /* --=20 2.48.1