From owner-freebsd-questions@freebsd.org Sat Aug 29 07:12:05 2015 Return-Path: Delivered-To: freebsd-questions@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 DCB719C4075 for ; Sat, 29 Aug 2015 07:12:05 +0000 (UTC) (envelope-from hien@hien.info) Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com [IPv6:2607:f8b0:4003:c06::234]) (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 A08D21943 for ; Sat, 29 Aug 2015 07:12:05 +0000 (UTC) (envelope-from hien@hien.info) Received: by oibi18 with SMTP id i18so36188352oib.3 for ; Sat, 29 Aug 2015 00:12:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hien.info; s=hien; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=2vJXHrb0FCg2nY5wvc6dI8LuBWbreSrCWcZA9y0KKjY=; b=St4SWLcgXE4StTvQcWUn+wSkIgX/jXnE4yLSywwGkkTgKO6/nmV+oBd8k2i1IoM0Ym E8jPHAdhNBO6RX3SG8Wne/tIh4zzpExIYkE0qMCGcn3RJj62Mq/lwHO5+bnvsw2EyJbB Rghx4sjSd1nYesPwXSjjs4ksJmJ6xgkByBKdw= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=2vJXHrb0FCg2nY5wvc6dI8LuBWbreSrCWcZA9y0KKjY=; b=G5BmjDes4eM/zzarsRjc8qtucNSjm3uFLhcvQfFwUz/VjeEWDvqIwQjy7zSRTXIaDe TfIdojzBSnHurbJT3MZDnIx7yyYHIV5GVHEWwee8VdrJvVFdcKOfoGXqawWCRgRgck40 9sY/Rw/sSnUydgA5tJNETn0agQSXk2xZ86JqTgwnH18igdd71Nk05ybqdTnhQBoSBCQo 26pqZSV8QPzqqbvmCPIuFV3TkR7Xv7+uOpmrXtqiAa05iVAOX+mXlsiAiVDRhyeiY61R My5lZqUR8oklVMRDx6BAhj3uhiMegSaRXMv0gVbWFG4t5SBwBQwuA/Fa4ykKO3DC2yJJ swdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=2vJXHrb0FCg2nY5wvc6dI8LuBWbreSrCWcZA9y0KKjY=; b=UdzR8OV3SpMAKvKTSrZMnOz9NDyiKH0S8jmYgE81lsfCzMMtg5h0E5LqGan6IAmojs awGOxsOMDU9r4Hq/n8LJWa8zAfc2r5ifesoAdBqefarldvA6p9w8PPHeIp+6JsntXhbC e+/NSmuiZsb2sQ8IYmRJA8ueMiUkmhnQCBDVIX0ieUDCApTs38CqF5ZNC/f84472DPn+ jTWlJe7Qv3XKrWeY6pBJq3RZ5BvJfiqRQMuGUA6R+KvB8bbn1YX0gcgfrDLcSvGorwvu lIsGvemixb7ww6GpsOkO/a9+gEyn6c/skW/H5wowF7ucXUzOGi/W3kX/tMVALJwHMMaD gVdw== X-Gm-Message-State: ALoCoQkKuVe/k449t/Tj5XZ1xBYoPEOsCrBRQuB+6KBKYlvdITKxjHfzoi3r9L9+W5I25p1SZ1d8 MIME-Version: 1.0 X-Received: by 10.202.62.215 with SMTP id l206mr7932802oia.8.1440832324697; Sat, 29 Aug 2015 00:12:04 -0700 (PDT) Sender: hien@hien.info Received: by 10.76.1.108 with HTTP; Sat, 29 Aug 2015 00:12:04 -0700 (PDT) X-Originating-IP: [113.161.68.214] In-Reply-To: <2142623530.346.1440828562305.JavaMail.zimbra@pushware.net> References: <2142623530.346.1440828562305.JavaMail.zimbra@pushware.net> Date: Sat, 29 Aug 2015 14:12:04 +0700 X-Google-Sender-Auth: ZIJT54XU41POQYf3GXjNkyBfYbs Message-ID: Subject: Re: syncookie CPU load From: Hien Phan To: Dmitry Mikhailov Cc: freebsd-questions@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2015 07:12:06 -0000 Hello, pf has built-in synproxy support, you could try it. On Sat, Aug 29, 2015 at 1:09 PM, Dmitry Mikhailov wrote: > Doing a SYN flood test with FreeBSD on Xeon D (8 core) with syncookies > enabled and the CPU load is around 20% (interrupts) at 150K pps. Is there > any way reconfigure FreeBSD to bring this load down? Linux has a solution > with netfilter synproxy which would not notice this low pps rate so I am > wondering whether something similar is possible with FreeBSD? > > Dmitry > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >