From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2C0A66026A for ; Sun, 6 Oct 2024 13:31:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728221494; cv=none; b=cRTNBBXOZrOWaSSk3+wu/lRXFTkxEMibENrwZ6Q/b+KTW1xr1De3CmjK1GJ96md1TZzxFZgXvJjbxvF/xiIVpIoNdcdIW4GhXjnlkoZEwTDQ+rgnSz0hjevoBD/RWMe3zaExEkSU4jdDu3RAIhL2HJQoxuYa8St5N+fDl2+a/Ys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728221494; c=relaxed/simple; bh=xmhbcwZsLFYvg5MOiTzHVl0RjSFYnbj3gCeExT2gTVM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=i8RmGuOrIk8rKpydkKcv4e3CWBQBw+FdrT6uBp+zbfVLenQYxJATG77rJIdaqQEu7svlCcCdBAzXnxWxQ3u3mjMGVa9RP7FQBBmkGN03v3VCbnITZCJvcWmInh8gKQLCcTfoCfHZXntff+JPc2V99yWjkc4/9h6EoKKuY7QAJMU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tiUQr9QP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tiUQr9QP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 576A4C4CEC5; Sun, 6 Oct 2024 13:31:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728221493; bh=xmhbcwZsLFYvg5MOiTzHVl0RjSFYnbj3gCeExT2gTVM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tiUQr9QP0kxcXa0D0r5qmW+qp5eIU852vfwxU/gV0/eJ3o+9T7qSr1QyBMD3n3ZEk vg84COVHDv6j5kymJq5YtKfQ2caCPjK/3hwFaH+dOBvECPiJm3ZBfl2qFj0e1cOy5E T7x00uHVgKHQEyaNYzcN1WHU3F1tASEfz+uHhqgIWP3DQqWuPPAMfy4UPwGpMcRJKr 82/l/WrrccVO0hkDoaHX0+rf/Sgw0+ZFKb3mCHgTfjY9k8N/oF/+mUZ0GSUIdLEKPU qZrNrVbxaijPev4xBRBJ2rMAanO2MI6SoECfz5DDiemH2RUKZgmaTOyadOiV9gQdWi sEOUL4nV5WoEQ== Date: Sun, 6 Oct 2024 16:31:30 +0300 From: Leon Romanovsky To: IVANE ADAM Cc: linux-rdma Subject: Re: Performance issue for a simple RDMA PingPong Message-ID: <20241006133130.GE4116@unreal> References: <1837235494.9324983.1727941451114.JavaMail.zimbra@univ-grenoble-alpes.fr> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1837235494.9324983.1727941451114.JavaMail.zimbra@univ-grenoble-alpes.fr> On Thu, Oct 03, 2024 at 09:44:11AM +0200, IVANE ADAM wrote: > Hello everyone, > > I'm currently having a performance issue to synchronize two different nodes with a simple ping/pong algorithm. <...> > I was able to test this on multiple configuration: > Linux version : 5.10.0-20-amd64, linux distribution : Debian11 & Debian12 > We have a Omni-Path network, configured to 100Gb/s ( Intel Omni-Path HFI Silicon 100 Series [discrete] with the hfi1 driver) Firmware version: 1.27.0 > Or a Infiniband network, configured to 100Gb/s (Mellanox Technologies MT28908 Family [ConnectX-6] with the mlx5_core driver) Firmware version: 20.29.2002 Please work with your FAEs, they will help you to resolve the issue. Thanks