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    SubjectRe: [PATCH] perf tools: Exit recording if events have non matching sample type
    On 09/30/2011 01:39 AM, Peter Zijlstra wrote:
    > On Thu, 2011-09-29 at 17:33 -0600, David Ahern wrote:
    >>> For record that means we need to dump each per-sample_id mmap onto a
    >>> separate file, i.e. use a directory, etc.
    >>
    >> That seems like a major re-write of perf.
    >
    > Well we want to go there anyway. A file per cpu stream can be a lot less
    > overhead than one file for all cpu streams.
    >

    really it becomes file per cpu stream and per sample type. So a dual
    socket, quad core with HT means 16 files per sample type. ie., the
    number of files explodes quick.

    I understand the allure for simplicity during the data collection. Has
    any thought been given on management of the files in such a scenario?
    User specifies a directory path instead of a file path - or both to
    handle backward compatibility?

    David


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