From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 ECE6E31A66; Fri, 8 Mar 2024 20:33:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709930014; cv=none; b=Qi3ePBDTcPylSN0z8WBFv0gYP/1zfGynknf2KWY/6IZjXNuD+JLJfFMmIknRlF5yDWajAT6/ntLmoUrlBReI+5m8DAPnAj1LDW2AVWBEZCaUajct9GYa4A6eK0uje88AAyXog66cDzrMWl9OJ2Wo4cqDesymIvC0cJoZnZ590co= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709930014; c=relaxed/simple; bh=mbU8isap81SxzNzDKLf+EXRxnmhyRYSIpTTrNxuafgw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=sOPzkLyt2YfrcOF+ESaSSsTYP+honxhjr9I2onevDVCYaZQ9ZJAF7d9KI9po0melq34ghTpneR0XlAFmPQR2paXK/wNuLDLMEOHmdxfIF2yKexcrr2nGRFziqLBzVcnZ/6l4ExxPOey8UpoRvZZaPM1ML1qQgMb018OIS0Ehr+o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Y9f9RbSq; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=MOUx0g/2; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Y9f9RbSq"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="MOUx0g/2" Date: Fri, 8 Mar 2024 21:33:28 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1709930010; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=vwt+VDLDRvl/LmacdV+mArgWDFVTfPr6L4CGq1jg7iM=; b=Y9f9RbSqdey9V8dfdCvfDsnukOebtoJo+6d2pQKjR7kElvsby2DO2FvbgifxygGaG6lWZS Ju8mCG9/05W3bHjnk+GD4SeMi2yIjHt+UYM1CvCRHEKZm0ntRs+qJAMWeh7ta+s3YlIseu Wj3UNnRnSyAC5Fg8Z35dJu1hZXKwOjWd0biYGjnihXAq+1Hw56B9wPO1Qbfag96ZKDLl+k wBNHhNyOixrZuoVwuQ/gQXESQ02d/o4Q2oNOBQRiyfQJIb9F+gBWSEH7RRGhzcr3vOej/F oxOKYImAFl85qeUIjI4l2y1ZlZOjM0DiiUQgYCazCGJl1yHrEIgW5a5diGuBsQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1709930010; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=vwt+VDLDRvl/LmacdV+mArgWDFVTfPr6L4CGq1jg7iM=; b=MOUx0g/2AvvcSiTbU8MX33za3/D88DDcKUIh16xlqY3skmnxiyrhRHlAgdgLf2qsj2+Ce/ q5/pd0mZvSVkZ/Aw== From: Sebastian Andrzej Siewior To: Haiyang Zhang Cc: Jakub Kicinski , Shradha Gupta , Shradha Gupta , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "netdev@vger.kernel.org" , Eric Dumazet , Paolo Abeni , Ajay Sharma , Leon Romanovsky , Thomas Gleixner , KY Srinivasan , Wei Liu , Dexuan Cui , Long Li , Paul Rosswurm , Alireza Dabagh , Sharath George John Subject: Re: RE: [PATCH] net :mana : Add per-cpu stats for MANA device Message-ID: <20240308203328.IvakSEHd@linutronix.de> References: <1709823132-22411-1-git-send-email-shradhagupta@linux.microsoft.com> <20240307072923.6cc8a2ba@kernel.org> <20240307090145.2fc7aa2e@kernel.org> <20240308112244.391b3779@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On 2024-03-08 19:43:57 [+0000], Haiyang Zhang wrote: > > Do you have experimental data showing this making a difference > > in production? > Shradha, could you please add some data before / after enabling irqbalancer > which changes cpu affinity? so you have one queue and one interrupt and then the irqbalancer is pushing the interrupt from CPU to another. What kind of information do you gain from per-CPU counters here? > Thanks, > - Haiyang Sebastian