From owner-freebsd-current@freebsd.org Tue Jan 17 13:11:27 2017 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 B5F40CB34A6 for ; Tue, 17 Jan 2017 13:11:27 +0000 (UTC) (envelope-from jakob@alvermark.net) Received: from smtprelay-h31.telenor.se (smtprelay-h31.telenor.se [213.150.131.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 382E61657; Tue, 17 Jan 2017 13:11:26 +0000 (UTC) (envelope-from jakob@alvermark.net) Received: from ipb4.telenor.se (ipb4.telenor.se [195.54.127.167]) by smtprelay-h31.telenor.se (Postfix) with ESMTP id 17639D920; Tue, 17 Jan 2017 13:46:34 +0100 (CET) X-SENDER-IP: [85.229.94.62] X-LISTENER: [smtp.bredband.net] X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DgCgBnEX5YED5e5VVdGwEBAQMBAQEJAQEBgzkBAQEBAR9feAEBDweDSop5kSYPlygqhXgCghFEFAECAQEBAQEBAQYBAQEBAQECOEWEagEFIw8BIyMQCxgCAhQSAgI5ChQGiRoBCa8WgiUViXgBAQEBAQUBAQEBJIELiiGEMmSCOIJeBZs6AYF+hF6NSo4lkToBgTE2IDeBGQqBFguDUByBYD01AQGIVgEBAQ X-IPAS-Result: A2DgCgBnEX5YED5e5VVdGwEBAQMBAQEJAQEBgzkBAQEBAR9feAEBDweDSop5kSYPlygqhXgCghFEFAECAQEBAQEBAQYBAQEBAQECOEWEagEFIw8BIyMQCxgCAhQSAgI5ChQGiRoBCa8WgiUViXgBAQEBAQUBAQEBJIELiiGEMmSCOIJeBZs6AYF+hF6NSo4lkToBgTE2IDeBGQqBFguDUByBYD01AQGIVgEBAQ X-IronPort-AV: E=Sophos;i="5.33,244,1477954800"; d="scan'208";a="652025012" Received: from c-3e5ee555.06-11-73746f31.cust.bredbandsbolaget.se (HELO sigyn.alvermark.net) ([85.229.94.62]) by ipb4.telenor.se with ESMTP; 17 Jan 2017 13:46:35 +0100 Received: from localhost ([127.0.0.1] helo=webmail.alvermark.net) by sigyn.alvermark.net with esmtp (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1cTT9j-000JaN-EA; Tue, 17 Jan 2017 13:46:31 +0100 Received: from 193.12.143.142 (SquirrelMail authenticated user alvis) by webmail.alvermark.net with HTTP; Tue, 17 Jan 2017 13:46:31 +0100 (CET) Message-ID: <59599.193.12.143.142.1484657191.squirrel@webmail.alvermark.net> In-Reply-To: <64999.85.229.93.187.1484344018.squirrel@webmail.alvermark.net> References: <57236.193.12.143.142.1484240708.squirrel@webmail.alvermark.net> <1610370.k87iRho0oa@ralph.baldwin.cx> <54232.193.12.143.142.1484297881.squirrel@webmail.alvermark.net> <4229440.M2aXL9uEHZ@ralph.baldwin.cx> <64999.85.229.93.187.1484344018.squirrel@webmail.alvermark.net> Date: Tue, 17 Jan 2017 13:46:31 +0100 (CET) Subject: Re: r311568 makes freerdp very slow From: "Jakob Alvermark" To: "Jakob Alvermark" Cc: "John Baldwin" , "Jakob Alvermark" , freebsd-current@freebsd.org, "Shawn Webb" User-Agent: SquirrelMail/1.5.1 MIME-Version: 1.0 Content-Type: text/plain;charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 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: Tue, 17 Jan 2017 13:11:27 -0000 On Fri, January 13, 2017 22:46, Jakob Alvermark wrote: > On Fri, January 13, 2017 19:44, John Baldwin wrote: > >> On Friday, January 13, 2017 09:58:01 AM Jakob Alvermark wrote: >> >> >>> On Thu, January 12, 2017 19:26, John Baldwin wrote: >>> >>> >>>> On Thursday, January 12, 2017 12:42:11 PM Shawn Webb wrote: >>>> >>>> >>>> >>>>> On Thu, Jan 12, 2017 at 06:05:08PM +0100, Jakob Alvermark wrote: >>>>> >>>>> >>>>> >>>>>> Hi, >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> r311568 Set MORETOCOME for AIO write requests on a socket. >>>>>> >>>>>> After this commit freerdp is very slow. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Before the password prompt would appear immediately when >>>>>> connecting to a server. Now it takes 5-10 seconds. After >>>>>> entering the password, another 5-10 seconds until I am >>>>>> connected. Once connected, there is a considerable lag. >>>>>> >>>>>> >>>>>> What could be the problem? >>>>>> >>>>>> >>>>>> >>>>> >>>>> I don't know what the problem is, but I am seeing the same >>>>> symptom. >>>>> >>>>> >>>> >>>> Can you get a ktrace of the freerdp process during this? The >>>> commit should only be setting MORETOCOME if multiple aio_write >>>> requests are queued to the same socket (so that TCP can batch them >>>> into a single packet). However, it should not affect an application >>>> just calling aio_write() on a socket once. >>>> >>>> -- >>>> John Baldwin >>>> >>>> >>> >>> Hi John, >>> >>> >>> >>> I got the ktrace, what do I do with it? >>> >>> >> >> kdump will generate a text representation, perhaps using 'kdump -s' to >> not include dumps of raw I/O data. If you can put the output of kdump >> at a URL I can fetch from then I can look at it. >> > > OK, here it is: http://filebin.ca/38mkuLau9Yqu/ktrace.out.xfreerdp.txt > > > Thanks, > > > Jakob Hi, Did you get any chance to look at this? Thanks, Jakob