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Add dirty page counting for debug

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This commit is contained in:
Qinfan Wu 2014-07-21 10:23:36 -07:00
parent 04d60a132b
commit a244e5078e
1 changed files with 29 additions and 4 deletions
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33
src/arena.c
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@ -923,11 +923,33 @@ arena_maybe_purge(arena_t *arena)
static arena_chunk_t *
chunks_dirty_iter_cb(arena_chunk_tree_t *tree, arena_chunk_t *chunk, void *arg)
{
size_t *ndirty = (size_t *)arg;
size_t *ndirty = (size_t *)arg;
assert(chunk->ndirty != 0);
*ndirty += chunk->ndirty;
return (NULL);
assert(chunk->ndirty != 0);
*ndirty += chunk->ndirty;
return (NULL);
}
static size_t
arena_dirty_count(arena_t *arena)
{
size_t ndirty = 0;
arena_chunk_map_t *mapelm;
arena_chunk_t *chunk;
size_t pageind, npages;
ql_foreach(mapelm, &arena->runs_dirty, dr_link) {
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(mapelm);
pageind = arena_mapelm_to_pageind(mapelm);
assert(arena_mapbits_allocated_get(chunk, pageind) == 0);
assert(arena_mapbits_large_get(chunk, pageind) == 0);
assert(arena_mapbits_dirty_get(chunk, pageind) != 0);
npages = arena_mapbits_unallocated_size_get(chunk, pageind) >>
LG_PAGE;
ndirty += npages;
}
return (ndirty);
}
static size_t
@ -1134,6 +1156,9 @@ arena_purge(arena_t *arena, bool all)
arena_chunk_dirty_iter(&arena->chunks_dirty, NULL,
chunks_dirty_iter_cb, (void *)&ndirty);
assert(ndirty == arena->ndirty);
ndirty = arena_dirty_count(arena);
assert(ndirty == arena->ndirty);
}
assert(arena->ndirty > arena->npurgatory || all);
assert((arena->nactive >> opt_lg_dirty_mult) < (arena->ndirty -