From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793738883; b=qRqlYqiwU/RTVmlfh8x0gEVH1BS8EWnwmMlP2KWRQGiFRUZroShsbtG7GwBjCL7be4V9 HG9ncvI1TLs0SRNhpGTjEzedU3pdoV7uqh5SNOVAy/JCGG+H0MZ+orDj9h7/LMjWXexn0 xudUq0SEzm+PybJMqLv6Yx8j5eEGnLkjvDI3D7jOybrjYmrwtbDtrdPW3hsb4YbP5QOxN sM2OJZovZiheDNn9sQAv8LxEiiNOBs3cm0ZmKYEiUWu5eJ3i3N96lABIrMdTrdYOYJ+Fy TV6LUYnZysnIMwWXDCzB8rLwGB/h8GK/KU5oAbHlIZnYJeyHkzHDJxf5Iepv0wvdNLw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793738883; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=GVRUF3Gj202ReJKqj6ISrfRznVfO8qG5Vz3LczwiRBY=; b=YvHgbMrg6fOUjxWEGJ+EaGklMgHS1RW1nju0f8qF8C4kntA2UXc9wJ0b5+W0CqGbgQMp cg7U74tAMed+jslcYqk3CGH3wI+/A0iupM/sitWbWKpFWdu4wSsnf3L/HLeGgBbm1oIeY 70/kivdyeESy5zZP8sjX+FcIMMifK1LqzVQaiIq+fMlAKFPT7omM8CzbaNd0DI3MUinKK QdZWnP7j66k9ZLHW69pp641zPX/1iafp4S+nJq2vjzSVYSWS5TS4eE4KGIysRTwVjzl82 Bi4YnIW5Mi3BK/dUYvyFA8O14Bij6hAssNNF+oYEBcTPdOdsq3PLi0FrQu75mIxTFMA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=AOAQu8L9; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 54A68606A31B for ; Tue, 3 Nov 2026 20:48:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=AOAQu8L9 Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4DB21F000C1; Tue, 3 Nov 2026 20:48:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793738882; bh=GVRUF3Gj202ReJKqj6ISrfRznVfO8qG5Vz3LczwiRBY=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=AOAQu8L9XAjn4zZMyfAJBbCKPM6lgxZuOOV+gKS1Q1c1RfjCS2R9yanzGfX2abVuF KucOKqkIFZ0o5xXQ5gD2qIcVGUp1l1SthPCXm/HxEtKpP+P4+kyE5XtkuM0gSItmqE iK9+p1JbV42UVlrI7Ij8LQ82Hsm7cz8y/9caQmJ7fI1gWxcQ4o0ynvseJdBsCSNyAe faFCLYJUFyZ/t7jt0WSsMs18So8yccRqxBBRNVYA1Mn73SS5ECd68OiBisTuvCWJZt nPSfT+P0xcaqLvtffmwDQQMBAAaHlUaMW7ThBwHhlfVWXFupiLelOjtjyBoRglF5PW Nn6uVnnPEjHlw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v5 09/11] alpha/perf: report the data source of ProfileMe DTB misses Reply-To: sashiko-reviews@lists.linux.dev To: "Matt Turner" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261103-alpha-profileme-v5-9-bbe3937fbf3a@gmail.com> References: <20261103-alpha-profileme-v5-0-bbe3937fbf3a@gmail.com> <20261103-alpha-profileme-v5-9-bbe3937fbf3a@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 03 Nov 2026 20:48:02 +0000 X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > A ProfileMe sample whose instruction trapped on a DTB miss identifies a > memory access that missed the DTB, but only in the PERF_SAMPLE_RAW data. >=20 > Set PERF_SAMPLE_DATA_SRC for those samples, so that the memory sort keys > see them: mem_dtlb is an L1 miss, and mem_op comes from the opcode, as > I_STAT does not say whether the access was a load or a store. Samples > that fall back to the interrupted PC get none. >=20 > I_STAT[TRP] is ignored for an instruction killed before it was mapped. On > an EV7, TRP and MIS were seen set for killed instructions that are not > even branches. >=20 > Suggested-by: Ian Rogers > Assisted-by: Claude:claude-opus-5-5 > Signed-off-by: Matt Turner Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261103-alpha-prof= ileme-v5-0-bbe3937fbf3a@gmail.com?part=3D9