Re: >2GB Bugs still exist in FreeBSD 4.9 ?

From: Doug White (dwhite_at_gumbysoft.com)
Date: 02/24/04

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    Date: Tue, 24 Feb 2004 10:03:23 -0800 (PST)
To: "Marc G. Fournier" <scrappy@hub.org>

    On Tue, 24 Feb 2004, Marc G. Fournier wrote:

    > On Mon, 23 Feb 2004, Phil Rosenthal wrote:
    >
    > > I haven't touched the VM_KMEM_SIZE/VM_KMEM_SIZE_MAX options, however.
    > > Reading the LINT notes, this seems unrelated... Are you sure that's a
    > > necessary change?
    >
    > Honestly, its been so long now that I'm not 100% certain exactly what I
    > was addressing with the VM_KMEM_* stuff ... I do alot on our servers with
    > unionfs, which tends to require some settings to be increased (ie. vnodes)
    > to quite high values ... I *think* I raised KVA_PAGES *because* I needed
    > to raise VM_KMEM_SIZE* to accommodate those increases ... but, again, it
    > was ages ago ...

    Something else you might try, in lieu of these changes, is to drop
    maxusers to 128. This frees up a lot of KVM. The auto-sizer maxes out at
    512MB, and past 1GB the page tables start consuming a non-trivial amount
    of memory.

    If you need to increase maxfiles or mbufs, you can tweak those manually
    using loader and/or sysctl. 

    -- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org
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