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Viewing changes to Analysis/debugger/malloc/valgrind.txt

  • Committer: Suren A. Chilingaryan
  • Date: 2015-08-21 03:52:00 UTC
  • Revision ID: csa@suren.me-20150821035200-xu1zh22cqlk2omcq
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Analysis/debugger/malloc/valgrind.txt
 
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Valgrind / callgrind
 
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--------------------
 
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 Open source memory leak detector and profiller. Very powerful, it is able
 
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 to profile CPU and HEAP, simullate cache and branching behaviour. There is
 
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 even alpha version of I/O profiller available. However, it's extremely
 
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 slow.
 
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Memory Debugger:
 
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    valgrind <application>              
 
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        --track-origins=yes             Track uninitialized values
 
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        --leak-check=full
 
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Othertools:
 
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    cachegrind:                         Cache simmulator
 
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    callgrind:                          Tree profiler
 
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    helgrind:                           Pthread debugger (race conditions,...)
 
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    massif:                             Heap profiller
 
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    memcheck:                           Memory debugger
 
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    iogrind:                            Third party, IO profiller (prealpha)
 
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Other tools:
 
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    --collect-jumps=yes                         - callgrind
 
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    --simulate-cache=yes                        - callgrind, cache behaviour simulation
 
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    --simulate-hwpref=yes                       - callgrind, prefetch simulation
 
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    --cache-sim=yes                             - Cachegrind
 
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    --branch-sim=yes                            - Cachegrind
 
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    --heap=yes                                  - Massif
 
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    --stacks=yes                                - Massif
 
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    --track-lockorders=yes                      - Helgrind
 
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    --show-conflicts=yes                        - Helgrind
 
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    --enable-sg-checks=yes                      - Memcheck
 
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Selecting tool
 
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    valgrind --tool=<tool_name> <tool_options> app
 
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Callgrind profilling
 
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--------------------
 
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 valgrind --tool=callgrind <application>
 
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    create callgrind.out.* in working directory
 
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    callgrind_annotate                          - information
 
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    callgrind_annotate --tree=both              - in tree form
 
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    callgrind_control                           - controlling callgrind process
 
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                                    we may start and stop instrumentation, etc.
 
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Heap Profilling
 
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----------------
 
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    ms_print                                    - readable
 
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