From owner-freebsd-xen@freebsd.org Wed Aug 17 10:32:02 2016 Return-Path: Delivered-To: freebsd-xen@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 05789BBC7DD; Wed, 17 Aug 2016 10:32:02 +0000 (UTC) (envelope-from borjam@sarenet.es) Received: from cu01176a.smtpx.saremail.com (cu01176a.smtpx.saremail.com [195.16.150.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B66C51DAF; Wed, 17 Aug 2016 10:32:00 +0000 (UTC) (envelope-from borjam@sarenet.es) Received: from [172.16.8.36] (izaro.sarenet.es [192.148.167.11]) by proxypop03.sare.net (Postfix) with ESMTPSA id AEBFA9DC9EE; Wed, 17 Aug 2016 12:31:57 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: Is it me or is FreeBSD slower on Xen than Linux? From: Borja Marcos In-Reply-To: <23f4fbc340f9cf51ee65bbd148706649@ultra-secure.de> Date: Wed, 17 Aug 2016 12:31:57 +0200 Cc: =?utf-8?Q?Roger_Pau_Monn=C3=A9?= , freebsd-xen@freebsd.org, owner-freebsd-xen@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <0CF8B21F-2728-426B-B81E-C9043148CBD9@sarenet.es> References: <20160816110759.6xlvxikw3tziahfd@mac> <20160816132938.d2i4u2y3scpzi2et@mac> <00D22384-BAA7-42E4-A486-4BE07562D011@sarenet.es> <8521aebaa093bcefe5956a71fd879140@ultra-secure.de> <872C5626-F58D-4F84-92AC-88B7352D1DDF@sarenet.es> <20160816141826.56mxsgx6e7rynxqg@mac> <599395934f751784b1f842ed3c8f879c@ultra-secure.de> <20160817091229.hm5a66ftwnfoj7vx@mac> <23f4fbc340f9cf51ee65bbd148706649@ultra-secure.de> To: rainer@ultra-secure.de X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Aug 2016 10:32:02 -0000 > On 17 Aug 2016, at 12:17, rainer@ultra-secure.de wrote: >=20 > I played a bit with the "OS-Type". > If I switch to "Other PV", I can get a bit more throughput (10MB/s). >=20 > Still too slow :-( Can it be a problem with the sync cache commands? Just wondering what = could be so different with Linux vs FreeBSD. At least in the past the Linux crowd = has chosen to=20 be lousy with committing data do disk and relying on fsck. FreeBSD does the opposite. Borja.