-malign-double

[Jed Brown]

Barry Smith wrote:

>    Does it? I ask myself everyday!

Well, rdtsc just gives one measurement, maybe if I was familiar with how
to read the others I would have no use for PAPI.  It's a truly
spectacular quantity of code for just reading counters (sloccount tells
me it's as big as PETSc!).

Of course interrupt-based profilers (e.g. Oprofile and Sun's tool) can
be the right thing, but -log_summary has a much lower entry cost.

Jed

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