Date: Sat, 21 Apr 2007 22:39:41 +0400 From: "Andrew Pantyukhin" <infofarmer@FreeBSD.org> To: "Artem Kuchin" <matrix@itlegion.ru> Cc: freebsd-stable@freebsd.org Subject: Re: PAE does not give any ram increase, why? Message-ID: <cb5206420704211139o61b93b3cs4f5fa3fa7f08659a@mail.gmail.com> In-Reply-To: <004b01c78421$062195c0$0c00a8c0@Artem> References: <Pine.BSF.3.96.1070421185323.7357E-100000@gaia.nimnet.asn.au> <004b01c78421$062195c0$0c00a8c0@Artem>
next in thread | previous in thread | raw e-mail | index | archive | help
On 4/21/07, Artem Kuchin <matrix@itlegion.ru> wrote: > Hello! > > I've upgraded one of my servers today. > Now it is > Asus P5p800-VM > Pentium D 3.0Ghz > 4GB RAM (4x1 GB) > 3WARE raid5 > > FreebSD 6.2 cvsed today compiled from sources. > > after that i decided to try PAE. It runs just fine but > when i compare available memory with and without > pae i do not see any difference. > > At kernel boot with PAE it says: > > pr 21 18:01:30 osiris kernel: ACPI APIC Table: <A M I OEMAPIC > > Apr 21 18:01:30 osiris kernel: Timecounter "i8254" frequency 1193182 Hz quality 0 > Apr 21 18:01:30 osiris kernel: CPU: Intel(R) Pentium(R) D CPU 3.00GHz (3000.33-MHz 686-class CPU) > Apr 21 18:01:30 osiris kernel: Origin = "GenuineIntel" Id = 0xf64 Stepping = 4 > Apr 21 18:01:30 osiris kernel: > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2 > Apr 21 18:01:30 osiris kernel: Features2=0xe49d<SSE3,RSVD2,MON,DS_CPL,EST,CNTX-ID,CX16,<b14>,<b15>> > Apr 21 18:01:30 osiris kernel: AMD Features=0x20000000<LM> > Apr 21 18:01:30 osiris kernel: AMD Features2=0x1<LAHF> > Apr 21 18:01:30 osiris kernel: Cores per package: 2 > Apr 21 18:01:30 osiris kernel: real memory = 4017881088 (3831 MB) > Apr 21 18:01:30 osiris kernel: avail memory = 3933429760 (3751 MB) > > The real and avail memory sizes are the same w/o PAE. > > Then i do > sysctl -a | grep hw | grep mem > > and i always see > hw.physmem: 4012244992 > hw.usermem: 3861307392 > hw.realmem: 4017881088 > hw.pci.host_mem_start: 2147483648 > > the number do not change with or without PAE > > Maybe i look in the wrong place? What number do you expect to see? 8Gb?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?cb5206420704211139o61b93b3cs4f5fa3fa7f08659a>