BIND 10 #2297: Fix isc-sysinfo free memory, uptime, smp output

[BIND 10 Development]

#2297: Fix isc-sysinfo free memory, uptime, smp output
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                   Reporter:  jreed  |                 Owner:  UnAssigned
                       Type:         |                Status:  reviewing
  defect                             |             Milestone:
                   Priority:  low    |  Sprint-20121106
                  Component:         |            Resolution:
  sysinfo                            |             Sensitive:  0
                   Keywords:         |           Sub-Project:  Core
            Defect Severity:  N/A    |  Estimated Difficulty:  4
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Replying to [comment:4 jinmei]:
 > trac2297 is ready for review.
 >
 > First note: I made a couple of unrelated changes:
 > - introduce run_sysinfo script so we can run it in the build tree
 > - removed the call to isc.util.process.rename().  see the commit log.
 >
 > Regarding the support of SMP in kernel, the fix is a kind of ugly
 > hack (7d777ce), but I couldn't come up with a cleaner way.
 >
 > Regarding the negative memory, I don't know the intent of the original
 > code, but "'physical memory' - 'active VM memory'" shouldn't be
 > valid calculation anyway.  Showing the size of free-list may not be
 > exactly what we want to show, but it seems to be closer to e.g. what
 > top(1) reports.  I applied the same change to the OpenBSD version.
 >
 > Proposed changelog:
 > {{{
 > 496.? [bug]           jinmei
 >       Fixed several issues in isc-sysinfo:
 >       - make sure it doesn't report a negative value for free memory
 >         size (this happened on FreeBSD, but can possibly occur on other
 >         BSD variants)
 >       - correctly identifies the SMP support in kernel on FreeBSD
 >       - print more human readable uptime as well as the time in seconds
 >       (Trac #2297, git TBD)
 > }}}

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Ticket URL: <http://bind10.isc.org/ticket/2297#comment:6>
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