https://bugs.kde.org/show_bug.cgi?id=464103
Bug ID: 464103
Summary: Enhancement: add a client request to DHAT to mark
memory to be histogrammed
Classification: Developer tools
Product: valgrind
Version: 3.21 GIT
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: dhat
Assignee: jsew...@acm.org
Reporter: pjfl...@wanadoo.fr
Target Milestone: ---
I often get DHAT results that refer to data structures larger than the default
1024 byte limit.
One fix is to recompile DHAT with a higher limit.
It would be nice to also have a client request, so that the guest code could be
instrumented. The flow woule be then
1. Do a normal DHAT run to identify heap hotspots
2. If some are larger than 1K then instrument:
struct Foo *foo = malloc(sizeof(struct Foo));
DHAT_HISTOGRAM_MEMORY(foo, sizeof(struct Foo));
3. Recompile guest and rerun
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