From owner-freebsd-current@freebsd.org Mon Aug 1 11:19:42 2016 Return-Path: Delivered-To: freebsd-current@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 3DA08BABF11 for ; Mon, 1 Aug 2016 11:19:42 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citapm.icyb.net.ua (citapm.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 566BB160C for ; Mon, 1 Aug 2016 11:19:40 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citapm.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id OAA06554; Mon, 01 Aug 2016 14:19:33 +0300 (EEST) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1bUBFS-000KJb-9J; Mon, 01 Aug 2016 14:19:32 +0300 Subject: Re: [PATCH] randomized delay in locking primitives, take 2 To: Mateusz Guzik References: <20160731095706.GB9408@dft-labs.eu> Cc: freebsd-current@FreeBSD.org From: Andriy Gapon Message-ID: <32aa8f7f-8096-740c-13e3-d51e0cb57c23@FreeBSD.org> Date: Mon, 1 Aug 2016 14:16:59 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <20160731095706.GB9408@dft-labs.eu> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Aug 2016 11:19:42 -0000 Mateusz, just out of curiosity, have you tried to explore alternative spinlock implementations like a ticket lock? It would be interesting to see if there are any improvements to be gained there. -- Andriy Gapon