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4dbb79b42d
allocating MAXCPU VHPTs up-front. This allows us to max-out MAXCPU without memory waste -- MAXCPU is now 32 for SMP kernels. This change also eliminates the VHPT scaling based in the total memory in the system. It's the workload that determines the best size of the VHPT. The workload can be affected by the amount of memory, but not necessarily. For example, there's no performance difference between VHPT sizes of 256KB, 512KB and 1MB when building the LINT kernel. This was observed with a system that has 8GB of memory. By default the kernel will allocate a 1MB VHPT. The user can tune the system with the "machdep.vhpt.log2size" tunable. |
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disasm | ||
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include | ||
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pci |