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--- software:valgrind [2010/07/20 08:17]
cyril renice, add options
+++ software:valgrind [2013/09/19 16:40]
@@ Line 1: / Line 1: @@
-====== Valgrind ======
-===== General options =====
-Syntax: **''valgrind [options] <your-program> <args>''**
-  * **''--db-attach=yes''** : to automatically attach gdb on errors
-  * **''--error-limit=no''** : to display all errors even if there are a lot of them
-  * **''--num-callers=50''** : to increase the maximum backtrace displayed
-===== Tools =====
-==== Memcheck ====
-Memory checker (default tool).
-Syntax: **''valgrind [--tool=memcheck] [options] <your-program> <args>''**
-  * **''--leak-check=full''** : to completely analyse memory leaks
-  * **''--track-origins=yes''** : to display where was allocated the "uninitialized value"
-==== Massif ====
-Memory profiling.
-Syntax: **''valgrind --tool=massif [options] <your-program> <args> ; ms_print massif.<pid>''**
-  * **''--time-unit=B''** : display results in bytes
-==== Callgrind ====
-Performance profiling, to find time taken in functions and number of calls of functions.
-Syntax: **''valgrind --tool=callgrind <program-compiled-O2> <args> ; kcachegrind callgrind.out.xxxx ; calgrind_control''**
-==== Cachegrind ====
-CPU cache profiling, to find cache misses.
-Syntax: **''valgrind --tool=cachegrind <program-compiled-O2> <args>''**
-Always do profiling with optimization options of compiler, or you could optimize things that the compiler already automatically does.