Date: Wed, 10 Apr 2013 10:06:13 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-hackers@freebsd.org Cc: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, Benjamin Kaduk <kaduk@mit.edu>, Sebastian Feld <sebastian.n.feld@gmail.com> Subject: Re: Multiple page size support on FreeBSD? Message-ID: <201304101006.13960.jhb@freebsd.org> In-Reply-To: <alpine.BSF.2.00.1304081238580.6013@wojtek.tensor.gdynia.pl> References: <CAHnbEGJuo9Jvskxaog0xLVM_LOse695b4E3fKae7YufOAVZuBg@mail.gmail.com> <alpine.GSO.1.10.1304072319300.9389@multics.mit.edu> <alpine.BSF.2.00.1304081238580.6013@wojtek.tensor.gdynia.pl>
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On Monday, April 08, 2013 6:39:31 am Wojciech Puchar wrote: > > Superpage promotion happens automatically when consecutive data are accessed > > according to the proper heuristic. > > and in practice - unless there are only few processes, never really works. > > this is a result of my own tests. How do your tests work? Do you examine PTEs directly to check for superpages or are you relying on the vm.pmap.pde sysctls? -- John Baldwin
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