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Imported from ../bash-2.05b.tar.gz.

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This commit is contained in:
Jari Aalto
2009-09-12 16:46:55 +00:00
parent f73dda092b
commit 7117c2d221
362 changed files with 34387 additions and 15063 deletions
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lib/malloc/mstats.h
+37 -19
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@@ -31,18 +31,28 @@
* NMALLOC[i] is the difference between the number of mallocs and frees
* for a given block size. TMALLOC[i] is the total number of mallocs for
* a given block size. NMORECORE[i] is the total number of calls to
* morecore(i). NMAL and NFRE are counts of the number of calls to malloc()
* and free(), respectively. NREALLOC is the total number of calls to
* realloc(); NRCOPY is the number of times realloc() had to allocate new
* memory and copy to it. NRECURSE is a count of the number of recursive
* calls to malloc() for the same bucket size, which can be caused by calls
* to malloc() from a signal handler. NSBRK is the number of calls to sbrk()
* (whether by morecore() or for alignment); TSBRK is the total number of
* bytes requested from the kernel with sbrk(). BYTESUSED is the total
* number of bytes consumed by blocks currently in use; BYTESFREE is the
* total number of bytes currently on all of the free lists. TBSPLIT is
* the number of times a larger block was split to satisfy a smaller request.
* NSPLIT[i] is the number of times a block of size I was split.
* morecore(i). NLESSCORE[i] is the total number of calls to lesscore(i).
*
* NMAL and NFRE are counts of the number of calls to malloc() and free(),
* respectively. NREALLOC is the total number of calls to realloc();
* NRCOPY is the number of times realloc() had to allocate new memory and
* copy to it. NRECURSE is a count of the number of recursive calls to
* malloc() for the same bucket size, which can be caused by calls to
* malloc() from a signal handler.
*
* NSBRK is the number of calls to sbrk() (whether by morecore() or for
* alignment); TSBRK is the total number of bytes requested from the kernel
* with sbrk().
*
* BYTESUSED is the total number of bytes consumed by blocks currently in
* use; BYTESFREE is the total number of bytes currently on all of the free
* lists. BYTESREQ is the total number of bytes requested by the caller
* via calls to malloc() and realloc().
*
* TBSPLIT is the number of times a larger block was split to satisfy a
* smaller request. NSPLIT[i] is the number of times a block of size I was
* split.
*
* TBCOALESCE is the number of times two adjacent smaller blocks off the free
* list were combined to satisfy a larger request.
*/
@@ -50,6 +60,7 @@ struct _malstats {
int nmalloc[NBUCKETS];
int tmalloc[NBUCKETS];
int nmorecore[NBUCKETS];
int nlesscore[NBUCKETS];
int nmal;
int nfre;
int nrealloc;
@@ -59,31 +70,38 @@ struct _malstats {
bits32_t tsbrk;
bits32_t bytesused;
bits32_t bytesfree;
u_bits32_t bytesreq;
int tbsplit;
int nsplit[NBUCKETS];
int tbcoalesce;
int ncoalesce[NBUCKETS];
};
/* Return statistics describing allocation of blocks of size BLOCKSIZE.
NFREE is the number of free blocks for this allocation size. NUSED
is the number of blocks in use. NMAL is the number of requests for
blocks of size BLOCKSIZE. NMORECORE is the number of times we had
to call MORECORE to repopulate the free list for this bucket. NSPLIT
is the number of times a block of this size was split to satisfy a
smaller request. */
to call MORECORE to repopulate the free list for this bucket.
NLESSCORE is the number of times we gave memory back to the system
from this bucket. NSPLIT is the number of times a block of this size
was split to satisfy a smaller request. NCOALESCE is the number of
times two blocks of this size were combined to satisfy a larger
request. */
struct bucket_stats {
u_bits32_t blocksize;
int nfree;
int nused;
int nmal;
int nmorecore;
int nlesscore;
int nsplit;
int ncoalesce;
};
extern struct bucket_stats malloc_bucket_stats ();
extern struct _malstats malloc_stats ();
extern void print_malloc_stats ();
extern void trace_malloc_stats ();
extern struct bucket_stats malloc_bucket_stats __P((int));
extern struct _malstats malloc_stats __P((void));
extern void print_malloc_stats __P((char *));
extern void trace_malloc_stats __P((char *, char *));
#endif /* MALLOC_STATS */