Date: Sat, 14 Jul 2012 14:43:42 -0400 From: Mike Meyer <mwm@mired.org> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: FreeBSD 8.3 Message-ID: <20120714144342.4c2141c8@bhuda.mired.org> In-Reply-To: <alpine.BSF.2.00.1207142023030.1821@wojtek.tensor.gdynia.pl> References: <20120714061141.473cc8ee@bhuda.mired.org> <alpine.BSF.2.00.1207141952220.1609@wojtek.tensor.gdynia.pl> <20120714141629.7d968e4e@bhuda.mired.org> <alpine.BSF.2.00.1207142023030.1821@wojtek.tensor.gdynia.pl>
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On Sat, 14 Jul 2012 20:27:11 +0200 (CEST) Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> wrote: > > would have asked about that. My problem is sucky virtualbox > > performance, on any guest that has VT-X emulation enabled (which means > > all 64 bit guests). > i would rather bet on linux addon kernel modules you have to install. Are you talking about the guest additions? They're already installed (on a VM that was running on an older Core 2 CPU). Performance sucks. > In windows you have to install "guest additions" without this it is plain > terrible. I haven't managed to get through an install on a 64-bit windows system yet to try that. However, that Linux doesn't Linux, or for the 32-bit > >> Windows runs great (as for windows of course) under VBox. > > Not for me. *Every* 64-bit guest OS has sucky performance. Linux, > Are you sure with two level pagetables featured in modern CPUs including > sandy bridge? Yes, I'm sure that every guest OS I've tried on a 64 bit guest sucks. I'm busy recreating 32-bit versions of the 64-bit guests where I can. > > Are you only running 32-bit guests? Are you running on 9.x or 8.x? > for production - yes (6 instances of windows XP). Virtualbox does never > make main workload for me, it is just addon. On FreeBSD 8.3. Could you tell me if they all have VT-X disabled? > But i've tried Windows 7 64-bit and it worked fine. didn't see any > problems with latency you describe Could you send me the system settings (VT-X, PAE, etc.) you used for this? Thanks, <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/ Independent Software developer/SCM consultant, email for more information. O< ascii ribbon campaign - stop html mail - www.asciiribbon.org
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