From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) (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 6824C4A4995; Wed, 2 Sep 2026 14:47:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788360439; cv=none; b=t6lTMF+313Vnlo8YJg0yi+rJOIgfynq2Ybxwh32xwSJkP+0FH3k9UxYpLI5JA7Sa+PyEpA4v6LyeeqPvJNdJRZd4WAPdWgciwcCFDtw3UR7LVGrIETHJTxX7AQimKMWVVNEMEam2codisl18uL7hwQEwX+5womVmglFvhU1U7e0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788360439; c=relaxed/simple; bh=bOcbTYWOSnGi5jznXtg1XYwg4lMEoIvH6Y8FiYqBbXM=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qrEsgvn1AuAoXOWtp0/KdWOpuHxxo7y0v5VzmJXtGipSYh93gYqHpR1XMNq6XR/dxeal/N3mNBUm1KDGmq8QsO3ZJxsNHxu0z/TKFv57xRzdLYYpHmZEkBJuABTb2GBdB0sBrkPWO+0T6rNp+YbOHSmjJEQmLrnL7nBQ3R1XXOg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b=rzIiNjuL; arc=none smtp.client-ip=216.40.44.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b="rzIiNjuL" Received: from omf08.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 4337416020E; Wed, 2 Sep 2026 14:47:15 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf08.hostedemail.com (Postfix) with ESMTPA id 3A9C320025; Wed, 2 Sep 2026 14:47:13 +0000 (UTC) Date: Wed, 2 Sep 2026 10:48:13 -0400 From: Steven Rostedt To: =?UTF-8?B?6auY57+U?= Cc: Xiang Gao , Masami Hiramatsu , Mathieu Desnoyers , Lorenzo Stoakes , Gao Xu , =?UTF-8?B?5Y2w6Zev?= , "linux-trace-kernel@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [External Mail]Re: [RFC] tracing: aggregate ring-buffer memory statistics Message-ID: <20260902104813.658823b7@gandalf.local.home> In-Reply-To: References: <20260825141015.3539553-1-gaoxiang17@xiaomi.com> <20260827113815.0a0e37fb@gandalf.local.home> <15c244f5bc8f4858b8ffa2974a46d009@xiaomi.com> <88d476d443e74672957a5e0d1f8bf9ba@xiaomi.com> <20260902091555.450b521c@gandalf.local.home> <20260902103938.6cf6f61c@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Stat-Signature: ed11yfzzffczpq8q4dwd3dfcjcc4mr11 X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: 3A9C320025 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX19StsrfhKF+weKPGtcADRxnAZedVSuCQgE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=goodmis.org; h=date:from:to:cc:subject:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=dkim1; bh=Oed39cMjAakAu0s/CMQfMdp1Ef8v0B+jU/QKmVYOIqc=; b=rzIiNjuL4WallsfpXY8FEZMOWreQr1KYTroB2iDNg+5WZzA4n7qtevHQYi19GA1Fu3Wv3DjktYgxxiYZFwwRVy0kPK1Z6y2LVtWZ0fd790YPfKV8tpgD39Tw37QWwHTp2wAbyo/8iiFD3/lUUEqcyBow3uD0UU9c8XhOlSEPXCM= X-HE-Tag: 1788360433-46278 X-HE-Meta: U2FsdGVkX19swY5FgH3aFEpYEcyltZMIUZN8o7wq8YsmaTSU72A5c8zNjTFGuhehM8rDpohAeDjL9z5adzSpWRuJRa49UNHFzNPgiIhqu2op7UT/yhIT6by8x/vgc4JKdkp54s9hwI9b/MkzXyC/RkdUAbuECXX8b5CFWyvQlazfD9as/OlskQl5SqSeWt33Ab1ItM6JPghx0OeRtQ7Qz6kTMr+tuSPjCb7rMqonAbTaQO1ex2+KdskScwevod0m0u/Ep5aZ52jRDlM6yy1F+c6Q48dtIboP0dUxEzUmRNaEK+99sF2HxCTHmiyZoK8ui0iYSSYC/j0TBiLTjIodanKTLQKxMzgM On Wed, 2 Sep 2026 14:46:21 +0000 =E9=AB=98=E7=BF=94 wrote: > Thanks, Steve. >=20 >=20 > One more question on the per-CPU view. Should I also provide: >=20 > /sys/kernel/tracing/trace_stats/per_cpu/cpuN/memory_usage_kb >=20 >=20 > with the same two-line format, reporting only the buffers belonging to > that CPU? Or should the initial version only have the top-level > memory_usage_kb file? >=20 > Once this is settled, I'll send the patch for review. You can add it as a separate patch in the series. -- Steve