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score: Add heap statistics

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Add lifetime bytes allocated and freed since they were present in the
malloc statistics.  Add number of failed allocations.
This commit is contained in:
Sebastian Huber
2014-11-28 11:53:55 +01:00
parent 2c3c657625
commit d006b46df3
5 changed files with 59 additions and 23 deletions
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32
doc/shell/memory.t
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@@ -551,9 +551,12 @@ to the command. This includes the following information:
@item Minimum free size ever in bytes
@item Maximum number of free blocks ever
@item Maximum number of blocks searched ever
@item Lifetime number of bytes allocated
@item Lifetime number of bytes freed
@item Total number of searches
@item Total number of successful allocations
@item Total number of searches ever
@item Total number of successful calls to free
@item Total number of failed allocations
@item Total number of successful frees
@item Total number of successful resizes
@end itemize
@@ -575,20 +578,23 @@ The following is an example of how to use the @code{malloc} command.
@example
SHLL [/] $ malloc
C Program Heap and RTEMS Workspace are the same.
Number of free blocks: 14
Largest free block: 266157192
Total bytes free: 266164928
Number of free blocks: 2
Largest free block: 266207504
Total bytes free: 266208392
Number of used blocks: 167
Largest used block: 16424
Total bytes used: 90888
Largest used block: 16392
Total bytes used: 83536
Instance number: 0
Size of the allocatable area in bytes: 266255816
Minimum free size ever in bytes: 266156136
Maximum number of free blocks ever: 15
Maximum number of blocks searched ever: 15
Size of the allocatable area in bytes: 266291928
Minimum free size ever in bytes: 266207360
Maximum number of free blocks ever: 6
Maximum number of blocks searched ever: 5
Lifetime number of bytes allocated: 91760
Lifetime number of bytes freed: 8224
Total number of searches: 234
Total number of successful allocations: 186
Total number of searches ever: 186
Total number of successful calls to free: 19
Total number of failed allocations: 0
Total number of successful frees: 19
Total number of successful resizes: 0
SHLL [/] $ malloc walk
malloc walk