RE: [perfmon2] [announce] Performance Counters for Linux, v6

[Luck, Tony]

> - or the PMU capability is expressed as a special counter type (if it's
>   useful enough) - and then either the write() method or ioctl is extended
>   to express attributes we want to set/change while a counter is running.

The product of:
        {exotic PMU modes} * {creative performance measurement ideas}
will produce a large number of candidates for these special counters
(at least on ia64 ... which has a large number of exotic PMU options).

I don't think that I'm qualified to judge which of them are "useful enough"
to warrant a special counter type.

-Tony
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