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Andriy Gapon 79edb7989a 8269 dtrace stddev aggregation is normalized incorrectly

illumos/illumos-gate@79809f9cf4
79809f9cf4

https://www.illumos.org/issues/8269
  It seems that currently normalization of stddev aggregation is done
  incorrectly.
  We divide both the sum of values and the sum of their squares by the
  normalization factor. But we should divide the sum of squares by the
  normalization factor squared to scale the original values properly.

Reviewed by: Bryan Cantrill <bryan@joyent.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Andriy Gapon <avg@FreeBSD.org>

2017-06-09 15:04:10 +00:00

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common

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2017-05-26 12:13:27 +00:00

head

5066 remove support for non-ANSI compilation

2014-08-20 06:29:42 +00:00

lib

8269 dtrace stddev aggregation is normalized incorrectly