The Memory MineTM
The Memory Mine is a stand-alone
application that lets you monitor
and stress heaps in any open application and helps find problems such as
memory leaks and heap corruption. Status of memory in a heap is sampled
dynamically: nonrelocatable(Ptr), relocatable (Handle) and free space is
shown. Allocate, Purge, Compact, and Zap memory lets users stress all or
part of a program. Heap data can be logged manually or automatically;
can be exported to graphics programs and spreadsheets. Source code is not
needed to view heaps; there is no system patching, and nothing is
in code. Works with PowerMac, and Macintosh with 68020 or better and
7.0 or later. Click to download a demo of
The Memory Mine
- Any open application's heap can be monitored, including System and
- Heaps are selected from a list of the names of open
- The Memory Mine monitors a selected heap (in the background, if
until you choose a different heap or quit, or the application is closed.
- Physical location of a heap in memory
- Whether the heap is consistent: if it is not, a message and reason
code is returned
- The amount of memory (in both blocks and bytes) allocated to
- Free space
- Non-relocatable space
- Relocatable space, further broken down into: locked and purgeable
- Fragmentation of the heap, as the number of "fences" - i.e.
of non-movable partitions
- Maximum and minimum free space
- Maximum space allocated Maximum relocatable space allocated: this
shows both the maximum number of handles allocated and the amount of
- Two display modes: one is detailed numerical tables, the other a more
compact graphical display.
- Allocate memory to any listed heap except that of the System, either
manually or automatically.
- Purge, Compact, Zap (invalidate free memory), and Maximize any listed
heap (Zap works in 24 and 32-bit mode on all machines, but not with the
Modern memory manager)
Use with Source Level Debuggers
- With a source level debugger to set breakpoints in code, The Memory
Mine can help pinpoint leaks and heap corruption.
- Logging and Printing Heap Data
- Log, manually or automatically, to text files that can be accessed
directly, or through other editors.
- Print saved heap statistics.
System and Space Requirements
Works on PowerMacintosh, and all Macintosh with 68020 processor or
System 7.0 or later is required. Works in 24-bit or 32-bit mode and with
the Modern memory manager. No special installation is required; no traps
patched. The Memory Mine is a fat binary file that starts up in native
mode no matter what the processor type. Startup size set at 650Kb.