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    SubjectRe: [PATCH] driver-core: devtmpfs - driver core maintained /dev tmpfs
    Kay Sievers <kay.sievers@vrfy.org> writes:

    > On Thu, May 7, 2009 at 10:17, Eric W. Biederman <ebiederm@xmission.com> wrote:
    >
    >> sysfs is slow.
    >> udev is slow.
    >
    > Everything is "slow" if you want to boot "fast". It's just numbers,
    > and this is more about simplicity and reliability, with just the side
    > effect that it's the fastest you can do, when you don't want to lose
    > current functionality.

    My primary concern is that you are inventing a new mechanism when
    the existing mechanism has known issues that could explain the slowdowns.

    My secondary concern is we have are adding a new mechanism when
    the existing mechanism has some significant known issues, that are
    not currently being addressed. Instead the next shiny bobble is
    being tackled.

    Finally I am stumped how creating a couple hundred device nodes can be
    a significant slowdown in booting. It feels like we your patchset
    adds a line of code for each device node it intends to create.

    >> Let's bloat the kernel to solve that problem?
    >
    > You want to add namespaces for devices to it?

    I think it is a logical conclusion, and it might potentially be needed.
    But that is a long ways out.

    Eric


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