BIND 10 #1564: document how to profile - valgrind/callgrind/kcachegrind

[BIND 10 Development]

#1564: document how to profile - valgrind/callgrind/kcachegrind
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                   Reporter:  jelte  |                 Owner:  jelte
                       Type:  task   |                Status:  reviewing
                   Priority:  major  |             Milestone:
                  Component:         |  Sprint-20120124
  Unclassified                       |            Resolution:
                   Keywords:         |             Sensitive:  0
            Defect Severity:  N/A    |           Sub-Project:  DNS
Feature Depending on Ticket:         |  Estimated Difficulty:  0
        Add Hours to Ticket:  0      |           Total Hours:  0
                  Internal?:  0      |
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Changes (by vorner):

 * owner:  vorner => jelte


Comment:

 Hello

 I guess the setup_intree_bind10.sh is mostly for the B10_FROM_SOURCE
 variables (we really should be OK with just one to signal the whole in-
 source situation at once).

 For building, maybe mentioning that a optimised build might be necessary?

 Does the thing count time or instructions?

 Wouldn't running the thing be easier by:

 {{{
 libtool --mode=execute valgrind --tool=callgrind ./src/bin/auth/b10-auth
 }}}

 One doesn't have to guess what is the exact binary in the .libs directory,
 as it differs between OSes. Also, it would work even when the
 B10_FROM_SOURCE & friends are set by hand, without the whole set of
 library environment variables.

 Would you know of a tool other than kcachegrind? Than one has an
 unfortunate set of (mostly indirect) dependencies. I discovered only the
 commandline cachegrind_annotate.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1564#comment:4>
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