From owner-freebsd-stable@freebsd.org Sun Apr 25 12:57:20 2021 Return-Path: Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2F58D621ACD for ; Sun, 25 Apr 2021 12:57:20 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from connect.ultra-secure.de (connect.ultra-secure.de [88.198.71.201]) by mx1.freebsd.org (Postfix) with ESMTP id 4FSp2l16kGz3M5H for ; Sun, 25 Apr 2021 12:57:18 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: (Haraka outbound); Sun, 25 Apr 2021 14:59:59 +0200 Received-SPF: SoftFail (connect.ultra-secure.de: domain of ultra-secure.de does not designate 217.71.83.52 as permitted sender) receiver=connect.ultra-secure.de; identity=mailfrom; client-ip=217.71.83.52; helo=[192.168.1.238]; envelope-from= Received: from [192.168.1.238] (217-071-083-052.ip-tech.ch [217.71.83.52]) by connect.ultra-secure.de (Haraka/2.6.2-toaster) with ESMTPSA id 3561754B-B611-4A23-B88F-930AE1675960.1 envelope-from (authenticated bits=0); Sun, 25 Apr 2021 14:59:54 +0200 From: Rainer Duffner Message-Id: Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Subject: Re: FreeBSD 13.0 terrible performance in KVM Date: Sun, 25 Apr 2021 14:57:05 +0200 In-Reply-To: <1699dc93-7070-e5f0-8fc1-2ca4f77db3ac@burgh.net> Cc: freebsd-stable@freebsd.org To: Jeff Love References: <1699dc93-7070-e5f0-8fc1-2ca4f77db3ac@burgh.net> X-Mailer: Apple Mail (2.3445.104.17) X-Haraka-GeoIP: EU, CH, 451km X-Haraka-ASN: 24951 X-Haraka-GeoIP-Received: X-Haraka-ASN: 24951 217.71.80.0/20 X-Haraka-ASN-CYMRU: asn=24951 net=217.71.80.0/20 country=CH assignor=ripencc date=2003-08-07 X-Haraka-FCrDNS: 217-071-083-052.ip-tech.ch X-Haraka-p0f: os="Mac OS X " link_type="DSL" distance=16 total_conn=6 shared_ip=N X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on spamassassin X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=ALL_TRUSTED,BAYES_00, HTML_MESSAGE,SPF_SOFTFAIL,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.1 X-Haraka-Karma: score: 6, good: 17438, bad: 613, connections: 19750, history: 16825, asn_score: 1418, asn_connections: 1586, asn_good: 1456, asn_bad: 38, pass:asn, relaying X-Rspamd-Queue-Id: 4FSp2l16kGz3M5H X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of rainer@ultra-secure.de designates 88.198.71.201 as permitted sender) smtp.mailfrom=rainer@ultra-secure.de X-Spamd-Result: default: False [-2.70 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; DMARC_NA(0.00)[ultra-secure.de]; RBL_DBL_DONT_QUERY_IPS(0.00)[88.198.71.201:from]; SPAMHAUS_ZRD(0.00)[88.198.71.201:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:24940, ipnet:88.198.0.0/16, country:DE]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-stable] Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.34 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Apr 2021 12:57:20 -0000 > Am 24.04.2021 um 15:03 schrieb Jeff Love : >=20 > I'm running 12.2 and 13.0 on KVM using virtio and zfs. I am not having = disk I/O issues. UFS or ZFS does not make a difference for me. ZFS is faster on read due to compression - that=E2=80=99s why back in = the XenServer days I didn=E2=80=99t even realize it until somebody = complained. It=E2=80=99s just a tad laggy in idle or normal conditions, but any kind = of IO brings the system down to a crawl - and that is noticeable.