Date: Wed, 21 Nov 2012 14:18:41 +0100 From: =?ISO-8859-1?Q?Bernhard_Fr=F6hlich?= <decke@FreeBSD.org> To: =?UTF-8?B?7KeE7ISd7Jik?= <jsukoh@gmail.com> Cc: freebsd-emulation@freebsd.org Subject: Re: virtualbox 4.2.4 tooooo slow Message-ID: <CAE-m3X1xrqaJG-_xQ_0nBR6Y4r9D1JdPWjTjcQckM9Nv%2BjYmXg@mail.gmail.com> In-Reply-To: <CADB0mjv%2BoxqKX-2oB0P7SUJ%2BzBq0HtSduKwhagSp71-vGgn2Kg@mail.gmail.com> References: <CADB0mjv%2BoxqKX-2oB0P7SUJ%2BzBq0HtSduKwhagSp71-vGgn2Kg@mail.gmail.com>
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On Wed, Nov 21, 2012 at 9:24 AM, =EC=A7=84=EC=84=9D=EC=98=A4 <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 =3D NONE, even sync=3Ddisabled because of slo= w > 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 t= he > 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 comput= er. > > virtualbox zfs/FreeBSD on SSD is much slower than virtualbox ext4/opensus= e > 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 lo= ts of CPU all the time or generating an unusual high number of interrupts? VirtualBox tries to use hardware CPU features for virtualization BUT it als= o has a software emulation fallback (from QEMU I think) but that is painfully slo= w 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 anno= unce 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 --=20 Bernhard Froehlich http://www.bluelife.at/
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