Date: Tue, 20 Sep 2016 15:52:13 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 212858] FreeBSD 11-stable regression in storage IOPS Message-ID: <bug-212858-6@https.bugs.freebsd.org/bugzilla/>
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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.=
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