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Aug
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comment Windows XP running as a guest on Linux VirtualBox is very slow
@kyle: Post that as an answer. It appears to be part of the solution.
Aug
17
comment Windows XP running as a guest on Linux VirtualBox is very slow
Disabling Hyperthreading in BIOS and switching to the Non-OSE version appears to have the desired effect. Windows Task Manager shows that the CPU usage is significantly less than before, both when idle and under load. Disk IO never seems to have been a problem.
Aug
17
comment Windows XP running as a guest on Linux VirtualBox is very slow
@MattH: it also makes it so that you can assign multiple CPUs to a guest OS. That may not actually provide better performance, but it's a feature that's disabled for me.
Aug
16
revised Windows XP running as a guest on Linux VirtualBox is very slow
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Aug
16
comment Windows XP running as a guest on Linux VirtualBox is very slow
I've also ensured that VirtualBox OSE host software and the Windows XP guest additions are the same version.
Aug
16
comment Windows XP running as a guest on Linux VirtualBox is very slow
Nope. Loading the database over the network is definitely slower (I timed a particularly slow search with a stopwatch for each test case). Filemaker also complains that it would be slower if I load its files over the network, and that rings true.
Aug
16
comment Windows XP running as a guest on Linux VirtualBox is very slow
Ok, I'll give this a try, but that sounds overly complicated for a situation that requires simplicity. Windows really shouldn't need to swap to disk in my situation, since I've allocated it 2 GB of RAM and the WTM says it uses all of 101MB of PF usage. Physical memory shows that 1.5 GB of RAM is free. If Filemaker really wanted to, it could load the entire 750 MB database into RAM.
Aug
15
comment Windows XP running as a guest on Linux VirtualBox is very slow
Actually, there was a bit of detail in the discussion that you may have missed. These CPUs are the old, first generation Xeon processors, model 2 according to /proc/cpuinfo. They're single-core but multithreaded, giving the kernel the impression that it has 4 CPUs to work with. Also, the original server has 1 single-core Pentium 4 cpu, but runs much faster with a native install of XP. In my experience with this Filemaker database, its performance is quite dependant on CPU speed, and your suggestion not to run Windows guests without VT is probably exactly where the problem is.
Aug
9
comment Windows XP running as a guest on Linux VirtualBox is very slow
@mailq let us continue this discussion in chat
Aug
9
comment Windows XP running as a guest on Linux VirtualBox is very slow
@mailq: Yes, Virtualbox Guest Additions has been installed. Why would Ubuntu server edition make a difference? And /proc/cpuinfo says nothing of VT-x, and neither does the BIOS.
Aug
9
comment Windows XP running as a guest on Linux VirtualBox is very slow
@Shane Madden: Well, if you have any suggestions for changing the situation, I'm all ears. :)
Aug
9
comment Windows XP running as a guest on Linux VirtualBox is very slow
@zoredache: I don't think it's disk IO that's the problem, and one CPU gets maxed out when the Filemaker server is properly busy. But at the same time, the CPU being used changes nearly constantly, which I find kind of funny.
Aug
9
asked Windows XP running as a guest on Linux VirtualBox is very slow
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comment Why aren't there many monitors with higher than 1920x1080 resolution?
I think that the best response to this is to get two smaller HD monitors for multitasking. My 22" 1080p monitor at work is almost wide enough to have two full windows side-by-side, but I had a lot more horizontal resolution on the two 17" CRTs that this thing replaced.