Date: Wed, 21 Nov 2012 08:32:34 -0600 From: Rusty Nejdl <rnejdl@ringofsaturn.com> To: <freebsd-emulation@freebsd.org> Subject: Re: virtualbox 4.2.4 tooooo slow Message-ID: <assp.1672f35080.d11f96b684522e9ce0e4476eb336d378@ringofsaturn.com> In-Reply-To: <CAE-m3X1xrqaJG-_xQ_0nBR6Y4r9D1JdPWjTjcQckM9Nv%2BjYmXg@mail.gmail.com> References: <CADB0mjv%2BoxqKX-2oB0P7SUJ%2BzBq0HtSduKwhagSp71-vGgn2Kg@mail.gmail.com> <CAE-m3X1xrqaJG-_xQ_0nBR6Y4r9D1JdPWjTjcQckM9Nv%2BjYmXg@mail.gmail.com>
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On 2012-11-21 07:18, Bernhard Fröhlich wrote: > On Wed, Nov 21, 2012 at 9:24 AM, 진석오 <jsukoh@gmail.com> wrote: >> Dear, >> >> I installed virtualbox 4.2.4(CFT) on zfs FreeBSD 9.1-RC3 >> >> installing and windows guest(windows 8) install with guest addition >> was >> successful. >> but the windows guest is too slow, it is hardly usable. >> >> my hardware specs. >> intel i7 quad core 3.6. ghz, with 8 thread >> mem 16G >> motherboard - asrock z79 extreme 6. >> intel SSD 120G. >> >> >> my virtualbox vdi file is at zroot/bigfile, with >> primaryache, secondarycache = NONE, even sync=disabled because of >> slow >> performance. >> >> virtual machine settings >> - mem 4096M, cpu 4ea >> - 25g vdi(SATA controller) with SSD ticked >> - VT-x/AMD-V, Nested Paging >> - video 128M >> >> >> >> I tried the VB on UFS because ZFS was too slow, but the result was >> the >> same.. >> I downgraded to FreeBSD 9.0 on UFS or / ZFS, but but the result was >> the >> same.. >> and I tried virtualbox 4.1.22 on FB 9.0/9.1-RC3,but but the result >> was the >> same.. >> >> but sad story is that >> I found that virtualbox 4.2.4 on linux(opensuse 12.2, ext4) was very >> fast. >> opensuse is installed on the second harddisk(NOT SSD) at the same >> computer. >> >> virtualbox zfs/FreeBSD on SSD is much slower than virtualbox >> ext4/opensuse >> on SATA2 harddisk... >> >> >> do I have any miss to setup on FreeBSD? I do not want to reboot to >> linux >> just because of virtualbox.... >> >> please let me know what I should do, if you use virtualbox on FreeBSD >> without any problem... >> >> thank you in advance... >> >> from jsuk > > I would start doing some easy tests to verify what slow really means. > Is it related > to CPU, I/O, network? What does top say on the host? Is the VM > consuming lots > of CPU all the time or generating an unusual high number of > interrupts? > > VirtualBox tries to use hardware CPU features for virtualization BUT > it also has > a software emulation fallback (from QEMU I think) but that is > painfully slow so > usually when someone says "vbox is slow" that is a sign of either your > CPU > features weren't detected correctly or your BIOS has a bug and doesn't > announce > them properly. In either case checking that you run the latest BIOS is > a good idea. > > If you had a look at that stuff please attach your ~/VirtualBox > VMs/Logs/VBox.log I wonder if you didn't install or kldload the virtualbox kernel modules on the FreeBSD host? Can you send the output of kldstat from the host? Rusty Nejdlhome | help
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