On 8 Mar 2018, at 17:57, amon <a...@vnl.com> wrote: > > Based on the hint, I found that the current malloc has gained > some tools that were not there the last time I had to do this, > and in fact it looks like mallinfo(3) might even be the base > upon which NSZoneStats() was built. So I might be able to whip > up a Linux ZoneStats() that uses NSZoneStats if zone != default > and glues in the values from mallinfo into an struct NSZoneStats, > which would give me a much more generally useful tool.
Note that mallinfo is not a ‘linux’ thing, it is a dlmalloc thing. Most GNU/Linux distros use dlmalloc as their default malloc but Android, for example, does not, and a few musl-based distros also use jemalloc, as do some programs (e.g. Firefox) on all GNU/Linux platforms. jemalloc also has a (somewhat richer) set of debugging features, but these are exposed via different interfaces. On Darwin, NSZone is implemented on top of the malloc_zone functionality in their malloc, which provides a structure that looks quite similar to GNUstep’s NSZone structure (though has a few other functions, for example one for allocating a large number of identical blocks simultaneously). I have never seen any code that uses malloc_zone, but I believe that Apple uses it internally for a few things where direct control over memory management is important for performance. David _______________________________________________ Discuss-gnustep mailing list Discuss-gnustep@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnustep
