Wojciech Puchar wrote:
other question - tried enabling it on my i386 laptop (256 megs
ram), always
mappings==0, while promitions>demotions>0.
The default starting address for executables on i386 is not aligned
to a 2/4MB page boundary. Hence, "mappings" are much less likely to
occur.
certainly there are apps that could be put on big pages, gimp
editing 40MB bitmap for
example
Regards,
Alan
how can i check how much (or maybe - what processes) 2MB pages are
actually allocated?
I'm afraid that you can't with great precision. For a given program
execution, on an otherwise idle machine, you can only estimate the
number by looking at the change in the quantity "promotions + mappings -
demotions" before, during, and after the program execution.
A program can call mincore(2) in order to determine if a virtual address
is part of a 2 or 4MB virtual page.
Alan
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
