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    SubjectRe: [Patch 0/2] Renaming 'trace' to 'relay' and enhancements to 'relay'
    On Mon, 4 Aug 2008 09:34:39 +0530
    "K.Prasad" <prasad@linux.vnet.ibm.com> wrote:

    > Hi Andrew,
    > Please find the patches that enhance the 'trace' infrastructure
    > (available in the -mm tree) and which introduce two new APIs
    > relay_dump() and relay_printk().
    >
    > These patches were submitted earlier as enhancements to trace, but were
    > renamed and merged with 'relay' based on your suggestion
    > (http://lkml.org/lkml/2008/5/28/207).
    >
    > The patches apply on 2.6.27-rc1-mm1 and have been tested on an x86
    > machine. Kindly accept them.
    >

    I'm a bit perplexed by these trace patches
    (http://userweb.kernel.org/~akpm/mmotm/broken-out/trace-code-and-documentation.patch).
    Is it useful? Will it be useful? Has anyone expressed
    interest/intent to use it, etc? I haven't heard much noise about it
    and I'm struggling to justify merging it.

    Also, it's starting to look somewhat similar to ftrace, which also
    provides sort of high-bandwidth per-cpu channels into userspace for
    tracing purposes.


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