From owner-freebsd-transport@freebsd.org Thu Jan 21 22:13:13 2016 Return-Path: Delivered-To: freebsd-transport@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8AA4EA8CDFD for ; Thu, 21 Jan 2016 22:13:13 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mail-ig0-x22b.google.com (mail-ig0-x22b.google.com [IPv6:2607:f8b0:4001:c05::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 565681577 for ; Thu, 21 Jan 2016 22:13:13 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: by mail-ig0-x22b.google.com with SMTP id z14so136289944igp.1 for ; Thu, 21 Jan 2016 14:13:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=GBTKXE31ywVz8OHxS0B7VkJGT2W1CgjuyntX8twE2GY=; b=mHGLL+L0bSRFDZdbFL7+tykaxfavYDdBiZ6lgw3s9NOQfWgIw75YaBOCFJSaEhcHRe 9VD65EYnyurqpi7WpmIXVPv/8j3R7GhW/nQkNlY9Ger2h4F+ESQGQI0xNSMSic6dBahi Dt5cHyamIRxSNWm+3zaqnkkUo83db3KMvQRjvGWtJu047ZGTSZTGjHdg4YoeXs6w8kRA Y9fipHIbkZ+rDcXFYX3GucReY4ENt6qhnfgcgjXFtOzSlz5Xh4oZn/mi93A7FTC3/HWm vMNzBYazabqpqOOW3lcXKV1SX1ZqoZbZTmaSgGl1L15W6KiVcejs6bYcsvne3w+tA7gD vsKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=GBTKXE31ywVz8OHxS0B7VkJGT2W1CgjuyntX8twE2GY=; b=RidKO39CvGFIvjJpQ9+1BB9LFATSGHTXmV1LnIlI1bUOYwlyfxpWOTHYATsUH8rpjg v5UBRF8QE/l+tGUkWlxdIOBjvPsoY9jkfvc/IDsXSMkHv0e0TDredL0RmjoHJ6Mc7vHc ug8xJGy0XbW933LNJxsZhD5Gid65iQe0r32nANsCM0KtU9MCxL29ke/69IFJTLzJh/xx 3CpWEIRdmt5VdKx8uTqESsM5857pCSdzO9/Usg2lWvzq7c9PdND77SPrissDWyoXPEuT bkY9t16FeavRsLSuo2ndJ8iqimEiZTaL7BBrPpOpT2SpjBKQHgEc2eDilJKkfRtw47B4 YAWQ== X-Gm-Message-State: AG10YOQWSu7NUZQHykx4iYKwSO4H74jIfwKSvOcGJg+xvP5Mc2CMPb+mz31tjMP93LDY+iNDYvO0kygMHAuPpQ== MIME-Version: 1.0 X-Received: by 10.50.160.11 with SMTP id xg11mr12007361igb.83.1453414392643; Thu, 21 Jan 2016 14:13:12 -0800 (PST) Received: by 10.107.178.193 with HTTP; Thu, 21 Jan 2016 14:13:12 -0800 (PST) In-Reply-To: References: Date: Thu, 21 Jan 2016 17:13:12 -0500 Message-ID: Subject: Re: Flamegraph of 8KB message bottlenecks From: Ryan Stone To: Adrian Chadd Cc: freebsd-transport@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-transport@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions of transport level network protocols in FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jan 2016 22:13:13 -0000 A lot. Over 100K per second I think? But the time spent in the syscalls seems to be dominating the time handling interrupts. On Thu, Jan 21, 2016 at 5:11 PM, Adrian Chadd wrote: > Well, how many interrupts/second is this seeing? > > > -a >