BIND 10 #1607: define ZoneFinder::findAdditional() and implement its default version

[BIND 10 Development]

#1607: define ZoneFinder::findAdditional() and implement its default version
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                   Reporter:         |                 Owner:  jinmei
  jinmei                             |                Status:  closed
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120320
  medium                             |            Resolution:  complete
                  Component:         |             Sensitive:  0
  b10-auth                           |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  4
            Defect Severity:  N/A    |           Total Hours:  30.87
Feature Depending on Ticket:  auth   |
  performance                        |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Replying to [comment:20 jreed]:
 > Here are some qps results:

 [...]

 > Some explanations of these tests are at DnsBenchmarks.
 >
 > Basically everything had a decrease except for successful delegations
 for root zone. (Note that the largehost-memory results weren't done for
 the first test. It timed out and I didn't look further.)

 Thanks, from a quick look they are within the range of my expectation.
 I believe #1608 (when completed) will outweigh the overhead with a
 large margin, and #1753 should mostly eliminate the overhead itself
 (at least for in-memory).

-- 
Ticket URL: <http://bind10.isc.org/ticket/1607#comment:21>
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