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Add debug code to aid in memory-leak tracking: if SHOW_MEMORY_STATS is

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defined then statistics about memory usage of all the global memory
contexts are printed after each commit.
This commit is contained in:
Tom Lane
2000-05-21 02:23:30 +00:00
parent 25a7a7f446
commit aa16179118
5 changed files with 71 additions and 9 deletions
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40
src/backend/utils/mmgr/aset.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/aset.c,v 1.26 2000/04/12 17:16:09 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/mmgr/aset.c,v 1.27 2000/05/21 02:23:29 tgl Exp $
*
* NOTE:
* This is a new (Feb. 05, 1999) implementation of the allocation set
@@ -541,3 +541,41 @@ AllocSetDump(AllocSet set)
{
elog(DEBUG, "Currently unable to dump AllocSet");
}
/*
* AllocSetStats
* Displays stats about memory consumption of an allocset.
*/
void
AllocSetStats(AllocSet set, const char *ident)
{
long nblocks = 0;
long nchunks = 0;
long totalspace = 0;
long freespace = 0;
AllocBlock block;
AllocChunk chunk;
int fidx;
AssertArg(AllocSetIsValid(set));
for (block = set->blocks; block != NULL; block = block->next)
{
nblocks++;
totalspace += block->endptr - ((char *) block);
freespace += block->endptr - block->freeptr;
}
for (fidx = 0; fidx < ALLOCSET_NUM_FREELISTS; fidx++)
{
for (chunk = set->freelist[fidx]; chunk != NULL;
chunk = (AllocChunk) chunk->aset)
{
nchunks++;
freespace += chunk->size + ALLOC_CHUNKHDRSZ;
}
}
fprintf(stderr,
"%s: %ld total in %ld blocks; %ld free (%ld chunks); %ld used\n",
ident, totalspace, nblocks, freespace, nchunks,
totalspace - freespace);
}