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SMP has been supported since OpenBSD 3.6, released in 2004. Presumably the old limit was 4 cores or 16 cores. The easiest way to get SMP support is to install the bsd.mp kernel. That should happen by default if your system has multiple cores. OpenBSD SMP project As of June, 2004, SMP (Symmetric MultiProcessor) support has been merged into the main ...


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As an update to this question/answer, threading will become more useful in the 5.2 release, which will then supposedly make applications like mysql run faster. If you are going to run the bsd.mp kernel for multiprocessor/multicore systems, even if it's NOT AMD, use the AMD64 platform instead of the i386 platform, as that seems to be the prevailing wisdom ...


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In order to use multiple cores, the kernel needs to be compiled with SMP support. The Fedora kernel should already have it. You can verify with the following: zcat /proc/config.gz | grep 'CONFIG_SMP' From the help text for kernel configuration: This enables support for systems with more than one CPU. If you say N here, the kernel will run on single ...


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My grub boot config had acpi=off in the kernel boot parameter list. Changed this to acpi=on. I originally had to turn acpi off when using the live cd to install this version of Linux because it wouldn't boot on this laptop from the default live cd kernel boot parameter list.


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It sounds like your VM has been configured to provide a single virtual cpu. The following documentation might help you in reconfiguring your VM to provide multiple cores: https://www.virtualbox.org/manual/ch03.html#settings-processor This may help, I had a similar issue with an Ubuntu VM. This help me with my original question



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