mbuf autotuning effect

[hiren panchasara]

On Wed, Jul 9, 2014 at 10:57 AM, Rodney W. Grimes
<freebsd at pdx.rh.cn85.chatusa.com> wrote:
> Actually didnt VM_KMEM_SIZE_SCALE default value get changed to 1 in the x86/amd64
> kernel tree some time in 8.x's life time?

Yes, Just for amd64:

% grep -r SCALE */include/vmparam.h  | grep define
amd64/include/vmparam.h:#define VM_KMEM_SIZE_SCALE      (1)
arm/include/vmparam.h:#define   VM_KMEM_SIZE_SCALE      (3)
i386/include/vmparam.h:#define  VM_KMEM_SIZE_SCALE      (3)
ia64/include/vmparam.h:#define  VM_KMEM_SIZE_SCALE      (4)
mips/include/vmparam.h:#define  VM_KMEM_SIZE_SCALE      (3)
powerpc/include/vmparam.h:#define       VM_KMEM_SIZE_SCALE      (3)
sparc64/include/vmparam.h:#define       VM_KMEM_SIZE_SCALE
(tsb_kernel_ldd_phys == 0 ? 3 : 2)

cheers,
Hiren

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