pymemtrace.util.dtrace_log_analyse

This attempts to reconcile all the memory and free allocations reported by DTrace.

For example given the DTrace log like this:

dtrace:::BEGIN
 77633  cmn_cmd_opts.py:141  -> set_log_level malloc(560) pntr 0x7fca83ef4240
 77633      __init__.py:422  -> validate malloc(1114) pntr 0x7fca858e4200
 77633      __init__.py:422  -> validate free(0x7fca858e4200)
 77633     threading.py:817  -> __init__ malloc(576) pntr 0x7fca83ef4470
 77633      __init__.py:471  -> _init malloc(576) pntr 0x7fca83ef46b0
 77633     threading.py:870  -> start malloc(264) pntr 0x7fca83ef21e0
 77633     threading.py:870  -> start malloc(16) pntr 0x7fca83d48a30
 77633     threading.py:574  -> wait malloc(536) pntr 0x7fca83d54be0
 77633     threading.py:364  -> notify malloc(528) pntr 0x7fca83c47e80
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data malloc(4096) pntr 0x7fca8408d200
 77633       process.py:268  -> _get_process_data malloc(25) pntr 0x7fca83c00620
 77633       process.py:268  -> _get_process_data malloc(4096) pntr 0x7fca8408e200
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x0)
 77633       process.py:268  -> _get_process_data free(0x7fca83c00620)
 77633       process.py:268  -> _get_process_data free(0x7fca8408e200)
 77633       process.py:268  -> _get_process_data free(0x7fca8408d200)
dtrace::END

This produces the following summary output:

2025-08-26 13:35:50,956 - dtrace_log_analyse.py#201 - INFO     - Ending DTrace block at line 16261386
DTraceMallocs:
malloc count outstanding:      926,784
 Total bytes outstanding:  122,456,515
   Max bytes outstanding:  220,487,009
    Total bytes malloc'd:  837,846,488
      Total bytes free'd:  715,389,973
          Maximum malloc:      589,880
         Max allocations:    2,314,384
           Count mallocs:    7,197,954
    Count frees non-null:    6,271,170
        Count frees null:       39,119
Total lines: 16,261,304 Failed parse lines: 36,526 Failed malloc: 931,407 Failed free: 1,785,128
Process time: 602.995 (s)
(pymemtrace_3.12_A)

class pymemtrace.util.dtrace_log_analyse.DTraceFreeCall(log_line_num: int, process: int, file: str, line: int, function: str, pointer: int)

__eq__(other)

Return self==value.

__hash__ = None

__init__(log_line_num: int, process: int, file: str, line: int, function: str, pointer: int) → None

__repr__()

Return repr(self).

__weakref__

list of weak references to the object

class pymemtrace.util.dtrace_log_analyse.DTraceMallocCall(log_line: int, process: int, file: str, line: int, function: str | None, size: int, pointer: int)

__eq__(other)

Return self==value.

__hash__ = None

__init__(log_line: int, process: int, file: str, line: int, function: str | None, size: int, pointer: int) → None

__repr__()

Return repr(self).

__weakref__

list of weak references to the object