Hi > .B void malloc_stats(void); > .SH DESCRIPTION > The > .BR malloc_stats () > function prints (on standard error) statistics about memory allocated by > .BR malloc (3) > and related functions. > For each arena (allocation area), this function prints > the total amount of memory allocated by means other than > .BR mmap (2) If I understand correctly, A chunk that allocated by mmap (i.e. IS_MMAPD marked one) doesn't belong to arena. iow, chunk_for_arena() don't work for mmaped chunk. then, For each arena (allocation area), this function prints the total amount of memory. is enough. > and the total number of bytes consumed by in-use allocations. > (These two values correspond to the > .I arena > and > .I uordblks > fields retrieved by > .BR mallinfo (3).) > In addition, > the function prints the sum of these two statistics for all arenas, > and the maximum number of blocks and bytes that were ever simultaneously > allocated using > .BR mmap (2). > If I understand correctly, this function output "Total (incl. mmap):\n" header, but "system bytes" and "in use bytes" don't include mmaped chunk. So, It would be nice if a bug section describe it. But I'm not an expert on this area. Please don't 100% trust me. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
