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    SubjectRe: [PATCH 0/5] perf: add two new features
    On Tue, Jul 16, 2013 at 09:22:00AM +0300, Adrian Hunter wrote:
    > On 28/06/13 22:22, Adrian Hunter wrote:
    > > On 28/06/2013 6:27 p.m., Peter Zijlstra wrote:
    > >> On Fri, Jun 28, 2013 at 04:22:16PM +0300, Adrian Hunter wrote:
    > >>> Hi
    > >>>
    > >>> Please consider these two new perf features:
    > >>> x86: add ability to calculate TSC from perf sample timestamps
    > >>> perf: add 'keep tracking' flag to PERF_EVENT_IOC_DISABLE
    > >>
    > >> Please explain to us why you'd like to do this..
    > >
    > > I will see what information I can dig up. The short answer is that I need
    > > to disable and re-enable a perf event but still be able to map IPs to their
    > > DSOs and symbols - which means not losing mmap events.
    >
    > Any other comments?

    Ah, thanks for the reminder.. well, I've applied patches 1-3 as those seem
    useful on their own. I'm not entirely convinced about the 'keep tracking' thing
    though.

    It seems to me you could get the same by opening a second event into the same
    buffer and keeping that enabled.


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