dtrace discuss - May 2010 - Pringting distributions/histograms (quantize) with printa

Hi

I wonder if I can use a printa statement with a format string to print a
quantize aggregation (that is, a histogram), and if so, what flag should I be
using in the format string for the histogram.

In particular, I''m interested in using a single printa statement to
print multiple aggregations that have the same keys, one of which is a quantize
aggregation.  E.g:

  @calls[this->func] = count();
  @avTime[this->func] = avg(this->time);
  @timeDist[this->func] = quantize(this->time);
  ...

END
{
  printa("%s\t%@d\t???\n", @calls, @avTime, @timeDist);
}

I''m not sure what to put instead of the "???" above for the
histogram.

Thanks,
Yossi
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Never mind, I figured this one out: apparently a simple %@d does the job.  When
combining with other aggregations, the histogram always breaks the line and
begins in a line of its own, but it still looks fine.

Thanks,
Yossi
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