Wojciech Puchar wrote:
i enabled
vm.pmap.pg_ps_enabled: 1
could you please explain what exactly this values means?
because i don't understand why promotions-demotions!=mappings
vm.pmap.pde.promotions: 2703
vm.pmap.pde.p_failures: 6290
vm.pmap.pde.mappings: 610
vm.pmap.pde.demotions: 289
other question - tried enabling it on my i386 laptop (256 megs ram),
always mappings==0, while promitions>demotions>0.
certainly there are apps that could be put on big pages, gimp editing
40MB bitmap for example
Just to be clear, since you say i386 (I presume you mean architecture),
I believe the Physical Address Extensions which allowed 2MB Page Size
bit to be set was introduced with Pentium Pro. Processors prior to this
were limited to standard 4KB pages.
-Nathanael
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