C++ (Cpp) __wt_cache_pages_inuse Examples

Example #1

File: conn_cache.c Project: mikety/mongo

/*
 * __wt_cache_stats_update --
 *	Update the cache statistics for return to the application.
 */
void
__wt_cache_stats_update(WT_SESSION_IMPL *session)
{
	WT_CACHE *cache;
	WT_CONNECTION_IMPL *conn;
	WT_CONNECTION_STATS **stats;
	uint64_t inuse, leaf;

	conn = S2C(session);
	cache = conn->cache;
	stats = conn->stats;

	inuse = __wt_cache_bytes_inuse(cache);
	/*
	 * There are races updating the different cache tracking values so
	 * be paranoid calculating the leaf byte usage.
	 */
	leaf = inuse > cache->bytes_internal ?
	    inuse - cache->bytes_internal : 0;

	WT_STAT_SET(session, stats, cache_bytes_max, conn->cache_size);
	WT_STAT_SET(session, stats, cache_bytes_inuse, inuse);
	WT_STAT_SET(session, stats, cache_overhead, cache->overhead_pct);

	WT_STAT_SET(
	    session, stats, cache_bytes_dirty, __wt_cache_dirty_inuse(cache));
	WT_STAT_SET(
	    session, stats, cache_bytes_image, __wt_cache_bytes_image(cache));
	WT_STAT_SET(
	    session, stats, cache_pages_inuse, __wt_cache_pages_inuse(cache));
	WT_STAT_SET(
	    session, stats, cache_bytes_internal, cache->bytes_internal);
	WT_STAT_SET(session, stats, cache_bytes_leaf, leaf);
	WT_STAT_SET(
	    session, stats, cache_bytes_other, __wt_cache_bytes_other(cache));

	WT_STAT_SET(session, stats,
	    cache_eviction_maximum_page_size, cache->evict_max_page_size);
	WT_STAT_SET(session, stats, cache_pages_dirty,
	    cache->pages_dirty_intl + cache->pages_dirty_leaf);

	/*
	 * The number of files with active walks ~= number of hazard pointers
	 * in the walk session.  Note: reading without locking.
	 */
	if (conn->evict_server_running)
		WT_STAT_SET(session, stats, cache_eviction_walks_active,
		    cache->walk_session->nhazard);
}

Example #2

File: conn_cache.c Project: deepinit-arek/wiredtiger

/*
 * __wt_cache_stats_update --
 *	Update the cache statistics for return to the application.
 */
void
__wt_cache_stats_update(WT_SESSION_IMPL *session)
{
	WT_CACHE *cache;
	WT_CONNECTION_IMPL *conn;
	WT_CONNECTION_STATS *stats;

	conn = S2C(session);
	cache = conn->cache;
	stats = &conn->stats;

	WT_STAT_SET(stats, cache_bytes_max, conn->cache_size);
	WT_STAT_SET(stats, cache_bytes_inuse, __wt_cache_bytes_inuse(cache));

	WT_STAT_SET(stats, cache_overhead, cache->overhead_pct);
	WT_STAT_SET(stats, cache_pages_inuse, __wt_cache_pages_inuse(cache));
	WT_STAT_SET(stats, cache_bytes_dirty, __wt_cache_dirty_inuse(cache));
	WT_STAT_SET(stats,
	    cache_eviction_maximum_page_size, cache->evict_max_page_size);
	WT_STAT_SET(stats, cache_pages_dirty, cache->pages_dirty);
}

Example #3

File: conn_cache.c Project: Asamaha/mongo

/*
 * __wt_cache_stats_update --
 *	Update the cache statistics for return to the application.
 */
void
__wt_cache_stats_update(WT_SESSION_IMPL *session)
{
	WT_CACHE *cache;
	WT_CONNECTION_IMPL *conn;
	WT_CONNECTION_STATS **stats;
	uint64_t inuse, leaf, used;

	conn = S2C(session);
	cache = conn->cache;
	stats = conn->stats;

	inuse = __wt_cache_bytes_inuse(cache);
	/*
	 * There are races updating the different cache tracking values so
	 * be paranoid calculating the leaf byte usage.
	 */
	used = cache->bytes_overflow + cache->bytes_internal;
	leaf = inuse > used ? inuse - used : 0;

	WT_STAT_SET(session, stats, cache_bytes_max, conn->cache_size);
	WT_STAT_SET(session, stats, cache_bytes_inuse, inuse);

	WT_STAT_SET(session, stats, cache_overhead, cache->overhead_pct);
	WT_STAT_SET(
	    session, stats, cache_pages_inuse, __wt_cache_pages_inuse(cache));
	WT_STAT_SET(
	    session, stats, cache_bytes_dirty, __wt_cache_dirty_inuse(cache));
	WT_STAT_SET(session, stats,
	    cache_eviction_maximum_page_size, cache->evict_max_page_size);
	WT_STAT_SET(session, stats, cache_pages_dirty, cache->pages_dirty);

	WT_STAT_SET(
	    session, stats, cache_bytes_internal, cache->bytes_internal);
	WT_STAT_SET(
	    session, stats, cache_bytes_overflow, cache->bytes_overflow);
	WT_STAT_SET(session, stats, cache_bytes_leaf, leaf);
}

Example #4

File: conn_cache.c Project: rain10154/wiredtiger

/*根据cache的状态更新cache的统计信息*/
void __wt_cache_stats_update(WT_SESSION_IMPL *session)
{
	WT_CACHE *cache;
	WT_CONNECTION_IMPL *conn;
	WT_CONNECTION_STATS *stats;

	conn = S2C(session);
	cache = conn->cache;
	stats = &conn->stats;

	WT_STAT_SET(stats, cache_bytes_max, conn->cache_size);
	WT_STAT_SET(stats, cache_bytes_inuse, __wt_cache_bytes_inuse(cache));

	WT_STAT_SET(stats, cache_overhead, cache->overhead_pct);
	WT_STAT_SET(stats, cache_pages_inuse, __wt_cache_pages_inuse(cache));
	WT_STAT_SET(stats, cache_bytes_dirty, __wt_cache_dirty_inuse(cache));
	WT_STAT_SET(stats, cache_eviction_maximum_page_size, cache->evict_max_page_size);
	WT_STAT_SET(stats, cache_pages_dirty, cache->pages_dirty);

	/* Figure out internal, leaf and overflow stats */
	WT_STAT_SET(stats, cache_bytes_internal, cache->bytes_internal);
	WT_STAT_SET(stats, cache_bytes_leaf, conn->cache_size - (cache->bytes_internal + cache->bytes_overflow));
	WT_STAT_SET(stats, cache_bytes_overflow, cache->bytes_overflow);
}