It's not directly what you're after, but have you tried the exp-dhat tool in 3.6.x ? (--tool=exp-dhat)
Amongst things it can find allocation stacks responsible for large amounts of short term allocation, which sounds like what you're trying to find. See http://www.valgrind.org/docs/manual/dh-manual.html J On Monday, May 16, 2011, Matt Fago wrote: > At the end of a run (--tool=memcheck) Valgrind prints heap allocation info > such as: > > "total heap usage: 486 allocs, 473 frees, 82,166 bytes allocated" > > Massif allows one to gather data about total instantaneous heap usage at > particular sampling times during program execution. However, I have > another (common?) use-case that I'm not sure is addressed. > > In particular, the "82,166 bytes allocated" refers to the cumulative sum of > _all_ heap allocations, including temporaries. Accidentally allocating > temporaries on the heap can be a large performance issue. With some > languages (e.g., C++) it can also be fairly difficult to track down in a > large program (e.g., a missing "&"). > > Is there some way to get a callgrind-like output for total heap allocations > performed by each function? It could be broken down into "self" and > "total" (e.g., those internal to the procedure, and those that persist > after the procedure exits). Such data would be very useful in tracking > down heap allocation bugs. As of yet I have not been able to find any such > capability. > > Thank you for a great tool! > > - Matt Fago > > > --------------------------------------------------------------------------- > --- Achieve unprecedented app performance and reliability > What every C/C++ and Fortran developer should know. > Learn how Intel has extended the reach of its next-generation tools > to help boost performance applications - inlcuding clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > Valgrind-users mailing list > Valgrind-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/valgrind-users ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
