From owner-freebsd-amd64@freebsd.org Tue Sep 20 15:52:13 2016 Return-Path: Delivered-To: freebsd-amd64@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 8BCA6BE2F65 for ; Tue, 20 Sep 2016 15:52:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (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 780B4237 for ; Tue, 20 Sep 2016 15:52:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u8KFqDT9031299 for ; Tue, 20 Sep 2016 15:52:13 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 212858] FreeBSD 11-stable regression in storage IOPS Date: Tue, 20 Sep 2016 15:52:13 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: patrick_dkt@yahoo.com.hk X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cc Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 20 Sep 2016 16:12:13 +0000 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Sep 2016 15:52:13 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212858 Bug ID: 212858 Summary: FreeBSD 11-stable regression in storage IOPS Product: Base System Version: 11.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: patrick_dkt@yahoo.com.hk CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org I have this VM (FreeBSD 10.3) in this setting: KVM (Fedora 24) VM (FreeBSD 10.3) and there are virtio-scsi disks connected to the VM: 1) OS disk 2) ZFS data disks 3) ZFS ZIL All three files in host file system is file based. The files are stored in = the SSD. I have done fio IO test in the FreeBSD VM: The bandwidth and IO is : READ bw=3D14709KB/s, iops=3D3677 WRITE bw=3D4898.8KB/s, iops=3D1224 After changing the VM to FreeBSD 11.0-stable, other settings remain the sam= e. I do fio IO test again. The new statistics is: READ bw=3D5651.3KB/s, iops=3D1412 WRITE bw=3D1889.1KB/s, iops=3D472 For reference, the command for fio: fio --filename=3D./testfile --direct=3D1 --rw=3Drandrw --refill_buffers --n= orandommap --randrepeat=3D0 --ioengine=3Dsync --bs=3D4k --rwmixread=3D75 --iodepth=3D1= 6 --numjobs=3D8 --runtime=3D60 --group_reporting --fsync=3D1 --name=3D4ktest -size=3D4G --=20 You are receiving this mail because: You are on the CC list for the bug.=