path: root/src/H5Cdbg.c

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:     H5Cdbg.c
 *              July 8 2016
 *              Quincey Koziol
 *
 * Purpose:     Debugging Routines for the generic cache structure or entries.
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/

#include "H5Cmodule.h" /* This source code file is part of the H5C module */

/***********/
/* Headers */
/***********/
#include "H5private.h"   /* Generic Functions            */
#include "H5ACprivate.h" /* Metadata Cache               */
#include "H5Cpkg.h"      /* Cache                        */
#include "H5Eprivate.h"  /* Error Handling               */

/****************/
/* Local Macros */
/****************/

/******************/
/* Local Typedefs */
/******************/

/********************/
/* Local Prototypes */
/********************/

/*********************/
/* Package Variables */
/*********************/

/*****************************/
/* Library Private Variables */
/*****************************/

/*******************/
/* Local Variables */
/*******************/

#ifndef NDEBUG

/*-------------------------------------------------------------------------
 * Function:    H5C_dump_cache
 *
 * Purpose:     Print a summary of the contents of the metadata cache for
 *              debugging purposes.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              10/10/10
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5C_dump_cache(H5C_t *cache_ptr, const char *cache_name)
{
    H5C_cache_entry_t *entry_ptr;
    H5SL_t *           slist_ptr = NULL;
    int                i;                   /* Local index variable */
    herr_t             ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(cache_ptr != NULL);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(cache_name != NULL);

    /* First, create a skip list */
    if (NULL == (slist_ptr = H5SL_create(H5SL_TYPE_HADDR, NULL)))
        HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "can't create skip list")

    /* Next, scan the index, and insert all entries in the skip list.
     * Do this, as we want to display cache entries in increasing address
     * order.
     */
    for (i = 0; i < H5C__HASH_TABLE_LEN; i++) {
        entry_ptr = cache_ptr->index[i];

        while (entry_ptr != NULL) {
            HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
            if (H5SL_insert(slist_ptr, entry_ptr, &(entry_ptr->addr)) < 0)
                HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "can't insert entry in skip list")

            entry_ptr = entry_ptr->ht_next;
        } /* end while */
    }     /* end for */

    /* If we get this far, all entries in the cache are listed in the
     * skip list -- scan the skip list generating the desired output.
     */

    HDfprintf(stdout, "\n\nDump of metadata cache \"%s\"\n", cache_name);

    /* Print header */
    HDfprintf(stdout, "Entry ");
    HDfprintf(stdout, "|       Address      ");
    HDfprintf(stdout, "|         Tag        ");
    HDfprintf(stdout, "|  Size ");
    HDfprintf(stdout, "| Ring ");
    HDfprintf(stdout, "|              Type              ");
    HDfprintf(stdout, "| Prot/Pin/Dirty");
    HDfprintf(stdout, "\n");

    HDfprintf(stdout, "--------------------------------------------------------------------------------------"
                      "--------------------------\n");

    i         = 0;
    entry_ptr = (H5C_cache_entry_t *)H5SL_remove_first(slist_ptr);
    while (entry_ptr != NULL) {
        HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);

        /* Print entry */
        HDfprintf(stdout, "%s%5d ", cache_ptr->prefix, i);
        HDfprintf(stdout, "  0x%16llx ", (long long)(entry_ptr->addr));
        if (NULL == entry_ptr->tag_info)
            HDfprintf(stdout, "    %16s ", "N/A");
        else
            HDfprintf(stdout, "  0x%16llx ", (long long)(entry_ptr->tag_info->tag));
        HDfprintf(stdout, "  %5lld ", (long long)(entry_ptr->size));
        HDfprintf(stdout, "    %d  ", (int)(entry_ptr->ring));
        HDfprintf(stdout, "  %2d %-32s ", (int)(entry_ptr->type->id), (entry_ptr->type->name));
        HDfprintf(stdout, " %d", (int)(entry_ptr->is_protected));
        HDfprintf(stdout, " %d", (int)(entry_ptr->is_pinned));
        HDfprintf(stdout, " %d", (int)(entry_ptr->is_dirty));
        HDfprintf(stdout, "\n");

        /* remove the next (first) item in the skip list */
        entry_ptr = (H5C_cache_entry_t *)H5SL_remove_first(slist_ptr);

        i++;
    } /* end while */

    HDfprintf(stdout, "\n\n");

    /* Verify that all the entries were removed from the skip list */
    HDassert(H5SL_count(slist_ptr) == 0);

done:
    /* Discard the skip list */
    if (slist_ptr)
        H5SL_close(slist_ptr);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_dump_cache() */
#endif /* NDEBUG */

#ifndef NDEBUG

/*-------------------------------------------------------------------------
 * Function:    H5C_dump_cache_LRU
 *
 * Purpose:     Print a summary of the contents of the metadata cache
 *              LRU for debugging purposes.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              10/10/10
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5C_dump_cache_LRU(H5C_t *cache_ptr, const char *cache_name)
{
    H5C_cache_entry_t *entry_ptr;
    int                i = 0;

    FUNC_ENTER_NOAPI_NOERR

    /* Sanity check */
    HDassert(cache_ptr != NULL);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(cache_name != NULL);

    HDfprintf(stdout, "\n\nDump of metadata cache LRU \"%s\"\n", cache_name);
    HDfprintf(stdout, "LRU len = %d, LRU size = %d\n", cache_ptr->LRU_list_len,
              (int)(cache_ptr->LRU_list_size));
    HDfprintf(stdout, "index_size = %d, max_cache_size = %d, delta = %d\n\n", (int)(cache_ptr->index_size),
              (int)(cache_ptr->max_cache_size),
              (int)(cache_ptr->max_cache_size) - (int)(cache_ptr->index_size));

    /* Print header */
    HDfprintf(stdout, "Entry ");
    HDfprintf(stdout, "|       Address      ");
    HDfprintf(stdout, "|         Tag        ");
    HDfprintf(stdout, "|  Size ");
    HDfprintf(stdout, "| Ring ");
    HDfprintf(stdout, "|              Type              ");
    HDfprintf(stdout, "| Dirty");
    HDfprintf(stdout, "\n");

    HDfprintf(stdout, "--------------------------------------------------------------------------------------"
                      "--------------------------\n");

    entry_ptr = cache_ptr->LRU_head_ptr;
    while (entry_ptr != NULL) {
        HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);

        /* Print entry */
        HDfprintf(stdout, "%s%5d ", cache_ptr->prefix, i);
        HDfprintf(stdout, "  0x%16llx ", (long long)(entry_ptr->addr));

        if (NULL == entry_ptr->tag_info)
            HDfprintf(stdout, "    %16s ", "N/A");
        else
            HDfprintf(stdout, "  0x%16llx ", (long long)(entry_ptr->tag_info->tag));

        HDfprintf(stdout, "  %5lld ", (long long)(entry_ptr->size));
        HDfprintf(stdout, "    %d  ", (int)(entry_ptr->ring));
        HDfprintf(stdout, "  %2d %-32s ", (int)(entry_ptr->type->id), (entry_ptr->type->name));
        HDfprintf(stdout, " %d", (int)(entry_ptr->is_dirty));
        HDfprintf(stdout, "\n");

        i++;
        entry_ptr = entry_ptr->next;
    } /* end while */

    HDfprintf(stdout, "--------------------------------------------------------------------------------------"
                      "--------------------------\n");

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5C_dump_cache_LRU() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_dump_cache_skip_list
 *
 * Purpose:     Debugging routine that prints a summary of the contents of
 *              the skip list used by the metadata cache metadata cache to
 *              maintain an address sorted list of dirty entries.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              11/15/14
 *
 * Changes:     Updated function for the slist_enabled field in H5C_t.
 *              Recall that to minimize slist overhead, the slist is
 *              empty and not maintained if cache_ptr->slist_enabled is
 *              false.
 *                                             JRM -- 5/6/20
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5C_dump_cache_skip_list(H5C_t *cache_ptr, char *calling_fcn)
{
    herr_t             ret_value = SUCCEED; /* Return value */
    int                i;
    H5C_cache_entry_t *entry_ptr = NULL;
    H5SL_node_t *      node_ptr  = NULL;

    FUNC_ENTER_NOAPI_NOERR

    HDassert(cache_ptr != NULL);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(calling_fcn != NULL);

    HDfprintf(stdout, "\n\nDumping metadata cache skip list from %s.\n", calling_fcn);
    HDfprintf(stdout, " slist %s.\n", cache_ptr->slist_enabled ? "enabled" : "disabled");
    HDfprintf(stdout, "	slist len = %" PRIu32 ".\n", cache_ptr->slist_len);
    HDfprintf(stdout, "	slist size = %zu.\n", cache_ptr->slist_size);

    if (cache_ptr->slist_len > 0) {

        /* If we get this far, all entries in the cache are listed in the
         * skip list -- scan the skip list generating the desired output.
         */
        HDfprintf(stdout, "Num:    Addr:               Len: Prot/Pind: Dirty: Type:\n");

        i = 0;

        node_ptr = H5SL_first(cache_ptr->slist_ptr);

        if (node_ptr != NULL) {

            entry_ptr = (H5C_cache_entry_t *)H5SL_item(node_ptr);
        }
        else {

            entry_ptr = NULL;
        }

        while (entry_ptr != NULL) {

            HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);

            HDfprintf(stdout, "%s%d       0x%016llx  %4lld    %d/%d       %d    %s\n", cache_ptr->prefix, i,
                      (long long)(entry_ptr->addr), (long long)(entry_ptr->size),
                      (int)(entry_ptr->is_protected), (int)(entry_ptr->is_pinned), (int)(entry_ptr->is_dirty),
                      entry_ptr->type->name);

            HDfprintf(stdout, "		node_ptr = %p, item = %p\n", (void *)node_ptr, H5SL_item(node_ptr));

            /* increment node_ptr before we delete its target */

            node_ptr = H5SL_next(node_ptr);

            if (node_ptr != NULL) {

                entry_ptr = (H5C_cache_entry_t *)H5SL_item(node_ptr);
            }
            else {

                entry_ptr = NULL;
            }

            i++;

        } /* end while */
    }     /* end if */

    HDfprintf(stdout, "\n\n");

    FUNC_LEAVE_NOAPI(ret_value)

} /* H5C_dump_cache_skip_list() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 * Function:    H5C_set_prefix
 *
 * Purpose:     Set the values of the prefix field of H5C_t.  This
 *		filed is used to label some debugging output.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              1/20/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5C_set_prefix(H5C_t *cache_ptr, char *prefix)
{
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if ((cache_ptr == NULL) || (cache_ptr->magic != H5C__H5C_T_MAGIC) || (prefix == NULL) ||
        (HDstrlen(prefix) >= H5C__PREFIX_LEN))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad param(s) on entry")

    HDstrncpy(&(cache_ptr->prefix[0]), prefix, (size_t)(H5C__PREFIX_LEN));

    cache_ptr->prefix[H5C__PREFIX_LEN - 1] = '\0';

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_set_prefix() */

/*-------------------------------------------------------------------------
 * Function:    H5C_stats
 *
 * Purpose:     Prints statistics about the cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              6/2/04
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5C_stats(H5C_t *cache_ptr, const char *cache_name,
          hbool_t
#if !H5C_COLLECT_CACHE_STATS
              H5_ATTR_UNUSED
#endif /* H5C_COLLECT_CACHE_STATS */
                  display_detailed_stats)
{
#if H5C_COLLECT_CACHE_STATS
    int     i;
    int64_t total_hits                     = 0;
    int64_t total_misses                   = 0;
    int64_t total_write_protects           = 0;
    int64_t total_read_protects            = 0;
    int64_t max_read_protects              = 0;
    int64_t total_insertions               = 0;
    int64_t total_pinned_insertions        = 0;
    int64_t total_clears                   = 0;
    int64_t total_flushes                  = 0;
    int64_t total_evictions                = 0;
    int64_t total_take_ownerships          = 0;
    int64_t total_moves                    = 0;
    int64_t total_entry_flush_moves        = 0;
    int64_t total_cache_flush_moves        = 0;
    int64_t total_size_increases           = 0;
    int64_t total_size_decreases           = 0;
    int64_t total_entry_flush_size_changes = 0;
    int64_t total_cache_flush_size_changes = 0;
    int64_t total_pins                     = 0;
    int64_t total_unpins                   = 0;
    int64_t total_dirty_pins               = 0;
    int64_t total_pinned_flushes           = 0;
    int64_t total_pinned_clears            = 0;
    int32_t aggregate_max_accesses         = 0;
    int32_t aggregate_min_accesses         = 1000000;
    int32_t aggregate_max_clears           = 0;
    int32_t aggregate_max_flushes          = 0;
    size_t  aggregate_max_size             = 0;
    int32_t aggregate_max_pins             = 0;
    double  hit_rate;
    double  prefetch_use_rate;
    double  average_successful_search_depth                   = 0.0;
    double  average_failed_search_depth                       = 0.0;
    double  average_entries_skipped_per_calls_to_msic         = 0.0;
    double  average_dirty_pf_entries_skipped_per_call_to_msic = 0.0;
    double  average_entries_scanned_per_calls_to_msic         = 0.0;
#endif                          /* H5C_COLLECT_CACHE_STATS */
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);

    /* This would normally be an assert, but we need to use an HGOTO_ERROR
     * call to shut up the compiler.
     */
    if ((NULL == cache_ptr) || (cache_ptr->magic != H5C__H5C_T_MAGIC) || (NULL == cache_name))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad cache_ptr or cache_name")

#if H5C_COLLECT_CACHE_STATS
    for (i = 0; i <= cache_ptr->max_type_id; i++) {
        total_hits += cache_ptr->hits[i];
        total_misses += cache_ptr->misses[i];
        total_write_protects += cache_ptr->write_protects[i];
        total_read_protects += cache_ptr->read_protects[i];
        if (max_read_protects < cache_ptr->max_read_protects[i])
            max_read_protects = cache_ptr->max_read_protects[i];
        total_insertions += cache_ptr->insertions[i];
        total_pinned_insertions += cache_ptr->pinned_insertions[i];
        total_clears += cache_ptr->clears[i];
        total_flushes += cache_ptr->flushes[i];
        total_evictions += cache_ptr->evictions[i];
        total_take_ownerships += cache_ptr->take_ownerships[i];
        total_moves += cache_ptr->moves[i];
        total_entry_flush_moves += cache_ptr->entry_flush_moves[i];
        total_cache_flush_moves += cache_ptr->cache_flush_moves[i];
        total_size_increases += cache_ptr->size_increases[i];
        total_size_decreases += cache_ptr->size_decreases[i];
        total_entry_flush_size_changes += cache_ptr->entry_flush_size_changes[i];
        total_cache_flush_size_changes += cache_ptr->cache_flush_size_changes[i];
        total_pins += cache_ptr->pins[i];
        total_unpins += cache_ptr->unpins[i];
        total_dirty_pins += cache_ptr->dirty_pins[i];
        total_pinned_flushes += cache_ptr->pinned_flushes[i];
        total_pinned_clears += cache_ptr->pinned_clears[i];
#if H5C_COLLECT_CACHE_ENTRY_STATS
        if (aggregate_max_accesses < cache_ptr->max_accesses[i])
            aggregate_max_accesses = cache_ptr->max_accesses[i];
        if (aggregate_min_accesses > aggregate_max_accesses)
            aggregate_min_accesses = aggregate_max_accesses;
        if (aggregate_min_accesses > cache_ptr->min_accesses[i])
            aggregate_min_accesses = cache_ptr->min_accesses[i];
        if (aggregate_max_clears < cache_ptr->max_clears[i])
            aggregate_max_clears = cache_ptr->max_clears[i];
        if (aggregate_max_flushes < cache_ptr->max_flushes[i])
            aggregate_max_flushes = cache_ptr->max_flushes[i];
        if (aggregate_max_size < cache_ptr->max_size[i])
            aggregate_max_size = cache_ptr->max_size[i];
        if (aggregate_max_pins < cache_ptr->max_pins[i])
            aggregate_max_pins = cache_ptr->max_pins[i];
#endif /* H5C_COLLECT_CACHE_ENTRY_STATS */
    }  /* end for */

    if ((total_hits > 0) || (total_misses > 0))
        hit_rate = 100.0 * ((double)(total_hits)) / ((double)(total_hits + total_misses));
    else
        hit_rate = 0.0;

    if (cache_ptr->successful_ht_searches > 0)
        average_successful_search_depth = ((double)(cache_ptr->total_successful_ht_search_depth)) /
                                          ((double)(cache_ptr->successful_ht_searches));

    if (cache_ptr->failed_ht_searches > 0)
        average_failed_search_depth =
            ((double)(cache_ptr->total_failed_ht_search_depth)) / ((double)(cache_ptr->failed_ht_searches));

    HDfprintf(stdout, "\n%sH5C: cache statistics for %s\n", cache_ptr->prefix, cache_name);

    HDfprintf(stdout, "\n");

    HDfprintf(stdout, "%s  hash table insertion / deletions   = %ld / %ld\n", cache_ptr->prefix,
              (long)(cache_ptr->total_ht_insertions), (long)(cache_ptr->total_ht_deletions));

    HDfprintf(stdout, "%s  HT successful / failed searches    = %ld / %ld\n", cache_ptr->prefix,
              (long)(cache_ptr->successful_ht_searches), (long)(cache_ptr->failed_ht_searches));

    HDfprintf(stdout, "%s  Av. HT suc / failed search depth   = %f / %f\n", cache_ptr->prefix,
              average_successful_search_depth, average_failed_search_depth);

    HDfprintf(stdout, "%s  current (max) index size / length  = %ld (%ld) / %lu (%lu)\n", cache_ptr->prefix,
              (long)(cache_ptr->index_size), (long)(cache_ptr->max_index_size),
              (unsigned long)(cache_ptr->index_len), (unsigned long)(cache_ptr->max_index_len));

    HDfprintf(stdout, "%s  current (max) clean/dirty idx size = %ld (%ld) / %ld (%ld)\n", cache_ptr->prefix,
              (long)(cache_ptr->clean_index_size), (long)(cache_ptr->max_clean_index_size),
              (long)(cache_ptr->dirty_index_size), (long)(cache_ptr->max_dirty_index_size));

    HDfprintf(stdout, "%s  current (max) slist size / length  = %ld (%ld) / %lu (%lu)\n", cache_ptr->prefix,
              (long)(cache_ptr->slist_size), (long)(cache_ptr->max_slist_size),
              (unsigned long)(cache_ptr->slist_len), (unsigned long)(cache_ptr->max_slist_len));

    HDfprintf(stdout, "%s  current (max) PL size / length     = %ld (%ld) / %lu (%lu)\n", cache_ptr->prefix,
              (long)(cache_ptr->pl_size), (long)(cache_ptr->max_pl_size), (unsigned long)(cache_ptr->pl_len),
              (unsigned long)(cache_ptr->max_pl_len));

    HDfprintf(stdout, "%s  current (max) PEL size / length    = %ld (%ld) / %lu (%lu)\n", cache_ptr->prefix,
              (long)(cache_ptr->pel_size), (long)(cache_ptr->max_pel_size),
              (unsigned long)(cache_ptr->pel_len), (unsigned long)(cache_ptr->max_pel_len));

    HDfprintf(stdout, "%s  current LRU list size / length     = %ld / %lu\n", cache_ptr->prefix,
              (long)(cache_ptr->LRU_list_size), (unsigned long)(cache_ptr->LRU_list_len));

#if H5C_MAINTAIN_CLEAN_AND_DIRTY_LRU_LISTS
    HDfprintf(stdout, "%s  current clean LRU size / length    = %ld / %lu\n", cache_ptr->prefix,
              (long)(cache_ptr->cLRU_list_size), (unsigned long)(cache_ptr->cLRU_list_len));

    HDfprintf(stdout, "%s  current dirty LRU size / length    = %ld / %lu\n", cache_ptr->prefix,
              (long)(cache_ptr->dLRU_list_size), (unsigned long)(cache_ptr->dLRU_list_len));
#endif /* H5C_MAINTAIN_CLEAN_AND_DIRTY_LRU_LISTS */

    HDfprintf(stdout, "%s  Total hits / misses / hit_rate     = %ld / %ld / %f\n", cache_ptr->prefix,
              (long)total_hits, (long)total_misses, hit_rate);

    HDfprintf(stdout, "%s  Total write / read (max) protects  = %ld / %ld (%ld)\n", cache_ptr->prefix,
              (long)total_write_protects, (long)total_read_protects, (long)max_read_protects);

    HDfprintf(stdout, "%s  Total clears / flushes             = %ld / %ld\n", cache_ptr->prefix,
              (long)total_clears, (long)total_flushes);

    HDfprintf(stdout, "%s  Total evictions / take ownerships  = %ld / %ld\n", cache_ptr->prefix,
              (long)total_evictions, (long)total_take_ownerships);

    HDfprintf(stdout, "%s  Total insertions(pinned) / moves   = %ld(%ld) / %ld\n", cache_ptr->prefix,
              (long)total_insertions, (long)total_pinned_insertions, (long)total_moves);

    HDfprintf(stdout, "%s  Total entry / cache flush moves    = %ld / %ld\n", cache_ptr->prefix,
              (long)total_entry_flush_moves, (long)total_cache_flush_moves);

    HDfprintf(stdout, "%s  Total entry size incrs / decrs     = %ld / %ld\n", cache_ptr->prefix,
              (long)total_size_increases, (long)total_size_decreases);

    HDfprintf(stdout, "%s  Ttl entry/cache flush size changes = %ld / %ld\n", cache_ptr->prefix,
              (long)total_entry_flush_size_changes, (long)total_cache_flush_size_changes);

    HDfprintf(stdout, "%s  Total entry pins (dirty) / unpins  = %ld (%ld) / %ld\n", cache_ptr->prefix,
              (long)total_pins, (long)total_dirty_pins, (long)total_unpins);

    HDfprintf(stdout, "%s  Total pinned flushes / clears      = %ld / %ld\n", cache_ptr->prefix,
              (long)total_pinned_flushes, (long)total_pinned_clears);

    HDfprintf(stdout, "%s  MSIC: (make space in cache) calls  = %lld\n", cache_ptr->prefix,
              (long long)(cache_ptr->calls_to_msic));

    if (cache_ptr->calls_to_msic > 0)
        average_entries_skipped_per_calls_to_msic =
            (((double)(cache_ptr->total_entries_skipped_in_msic)) / ((double)(cache_ptr->calls_to_msic)));

    HDfprintf(stdout, "%s  MSIC: Average/max entries skipped  = %lf / %ld\n", cache_ptr->prefix,
              (double)average_entries_skipped_per_calls_to_msic,
              (long)(cache_ptr->max_entries_skipped_in_msic));

    if (cache_ptr->calls_to_msic > 0)
        average_dirty_pf_entries_skipped_per_call_to_msic =
            (((double)(cache_ptr->total_dirty_pf_entries_skipped_in_msic)) /
             ((double)(cache_ptr->calls_to_msic)));

    HDfprintf(stdout, "%s  MSIC: Average/max dirty pf entries skipped  = %lf / %ld\n", cache_ptr->prefix,
              average_dirty_pf_entries_skipped_per_call_to_msic,
              (long)(cache_ptr->max_dirty_pf_entries_skipped_in_msic));

    if (cache_ptr->calls_to_msic > 0)
        average_entries_scanned_per_calls_to_msic =
            (((double)(cache_ptr->total_entries_scanned_in_msic)) / ((double)(cache_ptr->calls_to_msic)));

    HDfprintf(stdout, "%s  MSIC: Average/max entries scanned  = %lf / %ld\n", cache_ptr->prefix,
              (double)average_entries_scanned_per_calls_to_msic,
              (long)(cache_ptr->max_entries_scanned_in_msic));

    HDfprintf(stdout, "%s  MSIC: Scanned to make space(evict) = %lld\n", cache_ptr->prefix,
              (long long)(cache_ptr->entries_scanned_to_make_space));

    HDfprintf(
        stdout, "%s  MSIC: Scanned to satisfy min_clean = %lld\n", cache_ptr->prefix,
        (long long)(cache_ptr->total_entries_scanned_in_msic - cache_ptr->entries_scanned_to_make_space));

    HDfprintf(stdout, "%s  slist/LRU/index scan restarts   = %lld / %lld / %lld.\n", cache_ptr->prefix,
              (long long)(cache_ptr->slist_scan_restarts), (long long)(cache_ptr->LRU_scan_restarts),
              (long long)(cache_ptr->index_scan_restarts));

    HDfprintf(stdout, "%s  cache image creations/reads/loads/size = %d / %d /%d / %" PRIuHSIZE "\n",
              cache_ptr->prefix, cache_ptr->images_created, cache_ptr->images_read, cache_ptr->images_loaded,
              cache_ptr->last_image_size);

    HDfprintf(stdout, "%s  prefetches / dirty prefetches      = %lld / %lld\n", cache_ptr->prefix,
              (long long)(cache_ptr->prefetches), (long long)(cache_ptr->dirty_prefetches));

    HDfprintf(stdout, "%s  prefetch hits/flushes/evictions    = %lld / %lld / %lld\n", cache_ptr->prefix,
              (long long)(cache_ptr->prefetch_hits),
              (long long)(cache_ptr->flushes[H5AC_PREFETCHED_ENTRY_ID]),
              (long long)(cache_ptr->evictions[H5AC_PREFETCHED_ENTRY_ID]));

    if (cache_ptr->prefetches > 0)
        prefetch_use_rate = 100.0 * ((double)(cache_ptr->prefetch_hits)) / ((double)(cache_ptr->prefetches));
    else
        prefetch_use_rate = 0.0;

    HDfprintf(stdout, "%s  prefetched entry use rate          = %lf\n", cache_ptr->prefix, prefetch_use_rate);

#if H5C_COLLECT_CACHE_ENTRY_STATS

    HDfprintf(stdout, "%s  aggregate max / min accesses       = %d / %d\n", cache_ptr->prefix,
              (int)aggregate_max_accesses, (int)aggregate_min_accesses);

    HDfprintf(stdout, "%s  aggregate max_clears / max_flushes = %d / %d\n", cache_ptr->prefix,
              (int)aggregate_max_clears, (int)aggregate_max_flushes);

    HDfprintf(stdout, "%s  aggregate max_size / max_pins      = %d / %d\n", cache_ptr->prefix,
              (int)aggregate_max_size, (int)aggregate_max_pins);

#endif /* H5C_COLLECT_CACHE_ENTRY_STATS */

    if (display_detailed_stats) {
        for (i = 0; i <= cache_ptr->max_type_id; i++) {
            HDfprintf(stdout, "\n");

            HDfprintf(stdout, "%s  Stats on %s:\n", cache_ptr->prefix,
                      ((cache_ptr->class_table_ptr))[i]->name);

            if ((cache_ptr->hits[i] > 0) || (cache_ptr->misses[i] > 0))
                hit_rate = 100.0 * ((double)(cache_ptr->hits[i])) /
                           ((double)(cache_ptr->hits[i] + cache_ptr->misses[i]));
            else
                hit_rate = 0.0;

            HDfprintf(stdout, "%s    hits / misses / hit_rate       = %ld / %ld / %f\n", cache_ptr->prefix,
                      (long)(cache_ptr->hits[i]), (long)(cache_ptr->misses[i]), hit_rate);

            HDfprintf(stdout, "%s    write / read (max) protects    = %ld / %ld (%d)\n", cache_ptr->prefix,
                      (long)(cache_ptr->write_protects[i]), (long)(cache_ptr->read_protects[i]),
                      (int)(cache_ptr->max_read_protects[i]));

            HDfprintf(stdout, "%s    clears / flushes               = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->clears[i]), (long)(cache_ptr->flushes[i]));

            HDfprintf(stdout, "%s    evictions / take ownerships    = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->evictions[i]), (long)(cache_ptr->take_ownerships[i]));

            HDfprintf(stdout, "%s    insertions(pinned) / moves     = %ld(%ld) / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->insertions[i]), (long)(cache_ptr->pinned_insertions[i]),
                      (long)(cache_ptr->moves[i]));

            HDfprintf(stdout, "%s    entry / cache flush moves      = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->entry_flush_moves[i]), (long)(cache_ptr->cache_flush_moves[i]));

            HDfprintf(stdout, "%s    size increases / decreases     = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->size_increases[i]), (long)(cache_ptr->size_decreases[i]));

            HDfprintf(stdout, "%s    entry/cache flush size changes = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->entry_flush_size_changes[i]),
                      (long)(cache_ptr->cache_flush_size_changes[i]));

            HDfprintf(stdout, "%s    entry pins / unpins            = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->pins[i]), (long)(cache_ptr->unpins[i]));

            HDfprintf(stdout, "%s    entry dirty pins/pin'd flushes = %ld / %ld\n", cache_ptr->prefix,
                      (long)(cache_ptr->dirty_pins[i]), (long)(cache_ptr->pinned_flushes[i]));

#if H5C_COLLECT_CACHE_ENTRY_STATS

            HDfprintf(stdout, "%s    entry max / min accesses       = %d / %d\n", cache_ptr->prefix,
                      cache_ptr->max_accesses[i], cache_ptr->min_accesses[i]);

            HDfprintf(stdout, "%s    entry max_clears / max_flushes = %d / %d\n", cache_ptr->prefix,
                      cache_ptr->max_clears[i], cache_ptr->max_flushes[i]);

            HDfprintf(stdout, "%s    entry max_size / max_pins      = %d / %d\n", cache_ptr->prefix,
                      (int)(cache_ptr->max_size[i]), (int)(cache_ptr->max_pins[i]));

#endif /* H5C_COLLECT_CACHE_ENTRY_STATS */

        } /* end for */
    }     /* end if */

    HDfprintf(stdout, "\n");

#endif /* H5C_COLLECT_CACHE_STATS */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_stats() */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_stats__reset
 *
 * Purpose:     Reset the stats fields to their initial values.
 *
 * Return:      void
 *
 * Programmer:  John Mainzer, 4/28/04
 *
 *-------------------------------------------------------------------------
 */
void
#ifndef NDEBUG
H5C_stats__reset(H5C_t *cache_ptr)
#else /* NDEBUG */
#if H5C_COLLECT_CACHE_STATS
H5C_stats__reset(H5C_t *cache_ptr)
#else  /* H5C_COLLECT_CACHE_STATS */
H5C_stats__reset(H5C_t H5_ATTR_UNUSED *cache_ptr)
#endif /* H5C_COLLECT_CACHE_STATS */
#endif /* NDEBUG */
{
#if H5C_COLLECT_CACHE_STATS
    int i;
#endif /* H5C_COLLECT_CACHE_STATS */

    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);

#if H5C_COLLECT_CACHE_STATS
    for (i = 0; i <= cache_ptr->max_type_id; i++) {
        cache_ptr->hits[i]                     = 0;
        cache_ptr->misses[i]                   = 0;
        cache_ptr->write_protects[i]           = 0;
        cache_ptr->read_protects[i]            = 0;
        cache_ptr->max_read_protects[i]        = 0;
        cache_ptr->insertions[i]               = 0;
        cache_ptr->pinned_insertions[i]        = 0;
        cache_ptr->clears[i]                   = 0;
        cache_ptr->flushes[i]                  = 0;
        cache_ptr->evictions[i]                = 0;
        cache_ptr->take_ownerships[i]          = 0;
        cache_ptr->moves[i]                    = 0;
        cache_ptr->entry_flush_moves[i]        = 0;
        cache_ptr->cache_flush_moves[i]        = 0;
        cache_ptr->pins[i]                     = 0;
        cache_ptr->unpins[i]                   = 0;
        cache_ptr->dirty_pins[i]               = 0;
        cache_ptr->pinned_flushes[i]           = 0;
        cache_ptr->pinned_clears[i]            = 0;
        cache_ptr->size_increases[i]           = 0;
        cache_ptr->size_decreases[i]           = 0;
        cache_ptr->entry_flush_size_changes[i] = 0;
        cache_ptr->cache_flush_size_changes[i] = 0;
    } /* end for */

    cache_ptr->total_ht_insertions              = 0;
    cache_ptr->total_ht_deletions               = 0;
    cache_ptr->successful_ht_searches           = 0;
    cache_ptr->total_successful_ht_search_depth = 0;
    cache_ptr->failed_ht_searches               = 0;
    cache_ptr->total_failed_ht_search_depth     = 0;

    cache_ptr->max_index_len        = 0;
    cache_ptr->max_index_size       = (size_t)0;
    cache_ptr->max_clean_index_size = (size_t)0;
    cache_ptr->max_dirty_index_size = (size_t)0;

    cache_ptr->max_slist_len  = 0;
    cache_ptr->max_slist_size = (size_t)0;

    cache_ptr->max_pl_len  = 0;
    cache_ptr->max_pl_size = (size_t)0;

    cache_ptr->max_pel_len  = 0;
    cache_ptr->max_pel_size = (size_t)0;

    cache_ptr->calls_to_msic                          = 0;
    cache_ptr->total_entries_skipped_in_msic          = 0;
    cache_ptr->total_dirty_pf_entries_skipped_in_msic = 0;
    cache_ptr->total_entries_scanned_in_msic          = 0;
    cache_ptr->max_entries_skipped_in_msic            = 0;
    cache_ptr->max_dirty_pf_entries_skipped_in_msic   = 0;
    cache_ptr->max_entries_scanned_in_msic            = 0;
    cache_ptr->entries_scanned_to_make_space          = 0;

    cache_ptr->slist_scan_restarts = 0;
    cache_ptr->LRU_scan_restarts   = 0;
    cache_ptr->index_scan_restarts = 0;

    cache_ptr->images_created  = 0;
    cache_ptr->images_read     = 0;
    cache_ptr->images_loaded   = 0;
    cache_ptr->last_image_size = (hsize_t)0;

    cache_ptr->prefetches       = 0;
    cache_ptr->dirty_prefetches = 0;
    cache_ptr->prefetch_hits    = 0;

#if H5C_COLLECT_CACHE_ENTRY_STATS
    for (i = 0; i <= cache_ptr->max_type_id; i++) {
        cache_ptr->max_accesses[i] = 0;
        cache_ptr->min_accesses[i] = 1000000;
        cache_ptr->max_clears[i]   = 0;
        cache_ptr->max_flushes[i]  = 0;
        cache_ptr->max_size[i]     = (size_t)0;
        cache_ptr->max_pins[i]     = 0;
    } /* end for */

#endif /* H5C_COLLECT_CACHE_ENTRY_STATS */
#endif /* H5C_COLLECT_CACHE_STATS */
} /* H5C_stats__reset() */

extern void H5C__dump_entry(H5C_t *cache_ptr, const H5C_cache_entry_t *entry_ptr, hbool_t dump_parents,
                            const char *prefix, int indent);

static void
H5C__dump_parents(H5C_t *cache_ptr, const H5C_cache_entry_t *entry_ptr, const char *prefix, int indent)
{
    unsigned u;

    for (u = 0; u < entry_ptr->flush_dep_nparents; u++)
        H5C__dump_entry(cache_ptr, entry_ptr->flush_dep_parent[u], TRUE, prefix, indent + 2);
}

typedef struct H5C__dump_child_ctx_t {
    H5C_t *                  cache_ptr;
    const H5C_cache_entry_t *parent;
    hbool_t                  dump_parents;
    const char *             prefix;
    int                      indent;
} H5C__dump_child_ctx_t;

static int
H5C__dump_children_cb(H5C_cache_entry_t *entry_ptr, void *_ctx)
{
    H5C__dump_child_ctx_t *ctx = (H5C__dump_child_ctx_t *)_ctx;

    if (entry_ptr->tag_info->tag != entry_ptr->addr) {
        unsigned u;

        HDassert(entry_ptr->flush_dep_nparents);
        for (u = 0; u < entry_ptr->flush_dep_nparents; u++)
            if (ctx->parent == entry_ptr->flush_dep_parent[u])
                H5C__dump_entry(ctx->cache_ptr, entry_ptr, ctx->dump_parents, ctx->prefix, ctx->indent + 2);
    } /* end if */

    return (H5_ITER_CONT);
} /* end H5C__dump_children_cb() */

static void
H5C__dump_children(H5C_t *cache_ptr, const H5C_cache_entry_t *entry_ptr, hbool_t dump_parents,
                   const char *prefix, int indent)
{
    H5C__dump_child_ctx_t ctx;

    HDassert(entry_ptr->tag_info);

    ctx.cache_ptr    = cache_ptr;
    ctx.parent       = entry_ptr;
    ctx.dump_parents = dump_parents;
    ctx.prefix       = prefix;
    ctx.indent       = indent;
    H5C__iter_tagged_entries(cache_ptr, entry_ptr->tag_info->tag, FALSE, H5C__dump_children_cb, &ctx);
} /* end H5C__dump_children() */

void
H5C__dump_entry(H5C_t *cache_ptr, const H5C_cache_entry_t *entry_ptr, hbool_t dump_parents,
                const char *prefix, int indent)
{
    HDassert(cache_ptr);
    HDassert(entry_ptr);

    HDfprintf(stderr, "%*s%s: entry_ptr = (%a, '%s', %a, %t, %u, %u/%u)\n", indent, "", prefix,
              entry_ptr->addr, entry_ptr->type->name,
              entry_ptr->tag_info ? entry_ptr->tag_info->tag : HADDR_UNDEF, entry_ptr->is_dirty,
              entry_ptr->flush_dep_nparents, entry_ptr->flush_dep_nchildren,
              entry_ptr->flush_dep_ndirty_children);
    if (dump_parents && entry_ptr->flush_dep_nparents)
        H5C__dump_parents(cache_ptr, entry_ptr, "Parent", indent);
    if (entry_ptr->flush_dep_nchildren)
        H5C__dump_children(cache_ptr, entry_ptr, FALSE, "Child", indent);
} /* end H5C__dump_entry() */

/*-------------------------------------------------------------------------
 * Function:    H5C_flush_dependency_exists()
 *
 * Purpose:	Test to see if a flush dependency relationship exists
 *          between the supplied parent and child.  Both parties
 *          are indicated by addresses so as to avoid the necessity
 *          of protect / unprotect calls prior to this call.
 *
 *          If either the parent or the child is not in the metadata
 *          cache, the function sets *fd_exists_ptr to FALSE.
 *
 *          If both are in the cache, the childs list of parents is
 *          searched for the proposed parent.  If the proposed parent
 *          is found in the childs parent list, the function sets
 *          *fd_exists_ptr to TRUE.  In all other non-error cases,
 *          the function sets *fd_exists_ptr FALSE.
 *
 * Return:      SUCCEED on success/FAIL on failure.  Note that
 *              *fd_exists_ptr is undefined on failure.
 *
 * Programmer:  John Mainzer
 *              9/28/16
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5C_flush_dependency_exists(H5C_t *cache_ptr, haddr_t parent_addr, haddr_t child_addr, hbool_t *fd_exists_ptr)
{
    hbool_t            fd_exists = FALSE; /* whether flush dependency exists */
    H5C_cache_entry_t *parent_ptr;        /* Ptr to parent entry */
    H5C_cache_entry_t *child_ptr;         /* Ptr to child entry */
    hbool_t            ret_value = FALSE; /* Return value */

    FUNC_ENTER_NOAPI(NULL)

    /* Sanity checks */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(H5F_addr_defined(parent_addr));
    HDassert(H5F_addr_defined(child_addr));
    HDassert(fd_exists_ptr);

    H5C__SEARCH_INDEX(cache_ptr, parent_addr, parent_ptr, FAIL)
    H5C__SEARCH_INDEX(cache_ptr, child_addr, child_ptr, FAIL)

    if (parent_ptr && child_ptr) {
        HDassert(parent_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
        HDassert(child_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);

        if (child_ptr->flush_dep_nparents > 0) {
            unsigned u; /* Local index variable */

            HDassert(child_ptr->flush_dep_parent);
            HDassert(child_ptr->flush_dep_parent_nalloc >= child_ptr->flush_dep_nparents);

            for (u = 0; u < child_ptr->flush_dep_nparents; u++) {
                if (child_ptr->flush_dep_parent[u] == parent_ptr) {
                    fd_exists = TRUE;
                    HDassert(parent_ptr->flush_dep_nchildren > 0);
                    break;
                } /* end if */
            }     /* end for */
        }         /* end if */
    }             /* end if */

    *fd_exists_ptr = fd_exists;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_flush_dependency_exists() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_validate_index_list
 *
 * Purpose:     Debugging function that scans the index list for errors.
 *
 *		If an error is detected, the function generates a
 *		diagnostic and returns FAIL.  If no error is detected,
 *		the function returns SUCCEED.
 *
 * Return:      FAIL if error is detected, SUCCEED otherwise.
 *
 * Programmer:  John Mainzer, 9/16/16
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5C_validate_index_list(H5C_t *cache_ptr)
{
    H5C_cache_entry_t *entry_ptr = NULL;
    uint32_t           len       = 0;
    int32_t            index_ring_len[H5C_RING_NTYPES];
    size_t             size       = 0;
    size_t             clean_size = 0;
    size_t             dirty_size = 0;
    size_t             index_ring_size[H5C_RING_NTYPES];
    size_t             clean_index_ring_size[H5C_RING_NTYPES];
    size_t             dirty_index_ring_size[H5C_RING_NTYPES];
    int                i;
    herr_t             ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI_NOINIT

    /* Sanity checks */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);

    for (i = 0; i < H5C_RING_NTYPES; i++) {
        index_ring_len[i]        = 0;
        index_ring_size[i]       = 0;
        clean_index_ring_size[i] = 0;
        dirty_index_ring_size[i] = 0;
    } /* end if */

    if (((cache_ptr->il_head == NULL) || (cache_ptr->il_tail == NULL)) &&
        (cache_ptr->il_head != cache_ptr->il_tail))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index list pointer validation failed")

    if ((cache_ptr->index_len == 1) &&
        ((cache_ptr->il_head != cache_ptr->il_tail) || (cache_ptr->il_head == NULL) ||
         (cache_ptr->il_head->size != cache_ptr->index_size)))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index list pointer sanity checks failed")

    if ((cache_ptr->index_len >= 1) &&
        ((cache_ptr->il_head == NULL) || (cache_ptr->il_head->il_prev != NULL) ||
         (cache_ptr->il_tail == NULL) || (cache_ptr->il_tail->il_next != NULL)))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index list length sanity checks failed")

    entry_ptr = cache_ptr->il_head;
    while (entry_ptr != NULL) {
        if ((entry_ptr != cache_ptr->il_head) &&
            ((entry_ptr->il_prev == NULL) || (entry_ptr->il_prev->il_next != entry_ptr)))
            HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index list pointers for entry are invalid")

        if ((entry_ptr != cache_ptr->il_tail) &&
            ((entry_ptr->il_next == NULL) || (entry_ptr->il_next->il_prev != entry_ptr)))
            HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index list pointers for entry are invalid")

        HDassert(entry_ptr->ring > 0);
        HDassert(entry_ptr->ring < H5C_RING_NTYPES);

        len++;
        index_ring_len[entry_ptr->ring] += 1;

        size += entry_ptr->size;
        index_ring_size[entry_ptr->ring] += entry_ptr->size;

        if (entry_ptr->is_dirty) {
            dirty_size += entry_ptr->size;
            dirty_index_ring_size[entry_ptr->ring] += entry_ptr->size;
        } /* end if */
        else {
            clean_size += entry_ptr->size;
            clean_index_ring_size[entry_ptr->ring] += entry_ptr->size;
        } /* end else */

        entry_ptr = entry_ptr->il_next;
    } /* end while */

    if ((cache_ptr->index_len != len) || (cache_ptr->il_len != len) || (cache_ptr->index_size != size) ||
        (cache_ptr->il_size != size) || (cache_ptr->clean_index_size != clean_size) ||
        (cache_ptr->dirty_index_size != dirty_size) || (clean_size + dirty_size != size))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index, clean and dirty sizes for cache are invalid")

    size       = 0;
    clean_size = 0;
    dirty_size = 0;
    for (i = 0; i < H5C_RING_NTYPES; i++) {
        size += clean_index_ring_size[i] + dirty_index_ring_size[i];
        clean_size += clean_index_ring_size[i];
        dirty_size += dirty_index_ring_size[i];
    } /* end for */

    if ((cache_ptr->index_size != size) || (cache_ptr->clean_index_size != clean_size) ||
        (cache_ptr->dirty_index_size != dirty_size))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Index, clean and dirty sizes for cache are invalid")

done:
    if (ret_value != SUCCEED)
        HDassert(0);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_validate_index_list() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_get_entry_ptr_from_addr()
 *
 * Purpose:     Debugging function that attempts to look up an entry in the
 *              cache by its file address, and if found, returns a pointer
 *              to the entry in *entry_ptr_ptr.  If the entry is not in the
 *              cache, *entry_ptr_ptr is set to NULL.
 *
 *              WARNING: This call should be used only in debugging
 *                       routines, and it should be avoided when
 *                       possible.
 *
 *                       Further, if we ever multi-thread the cache,
 *                       this routine will have to be either discarded
 *                       or heavily re-worked.
 *
 *                       Finally, keep in mind that the entry whose
 *                       pointer is obtained in this fashion may not
 *                       be in a stable state.
 *
 *              Note that this function is only defined if NDEBUG
 *              is not defined.
 *
 *              As heavy use of this function is almost certainly a
 *              bad idea, the metadata cache tracks the number of
 *              successful calls to this function, and (if
 *              H5C_DO_SANITY_CHECKS is defined) displays any
 *              non-zero count on cache shutdown.
 *
 * Return:      FAIL if error is detected, SUCCEED otherwise.
 *
 * Programmer:  John Mainzer, 5/30/14
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5C_get_entry_ptr_from_addr(H5C_t *cache_ptr, haddr_t addr, void **entry_ptr_ptr)
{
    H5C_cache_entry_t *entry_ptr = NULL;
    herr_t             ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(H5F_addr_defined(addr));
    HDassert(entry_ptr_ptr);

    H5C__SEARCH_INDEX(cache_ptr, addr, entry_ptr, FAIL)

    if (entry_ptr == NULL)
        /* the entry doesn't exist in the cache -- report this
         * and quit.
         */
        *entry_ptr_ptr = NULL;
    else {
        *entry_ptr_ptr = entry_ptr;

        /* increment call counter */
        (cache_ptr->get_entry_ptr_from_addr_counter)++;
    } /* end else */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_get_entry_ptr_from_addr() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 * Function:    H5C_get_serialization_in_progress
 *
 * Purpose:     Return the current value of
 *              cache_ptr->serialization_in_progress.
 *
 * Return:      Current value of cache_ptr->serialization_in_progress.
 *
 * Programmer:  John Mainzer
 *		8/24/15
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
hbool_t
H5C_get_serialization_in_progress(const H5C_t *cache_ptr)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity check */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);

    FUNC_LEAVE_NOAPI(cache_ptr->serialization_in_progress)
} /* H5C_get_serialization_in_progress() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_cache_is_clean()
 *
 * Purpose:     Debugging function that verifies that all rings in the
 *		metadata cache are clean from the outermost ring, inwards
 *		to the inner ring specified.
 *
 *		Returns TRUE if all specified rings are clean, and FALSE
 *		if not.  Throws an assertion failure on error.
 *
 * Return:      TRUE if the indicated ring(s) are clean, and FALSE otherwise.
 *
 * Programmer:  John Mainzer, 6/18/16
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
hbool_t
H5C_cache_is_clean(const H5C_t *cache_ptr, H5C_ring_t inner_ring)
{
    H5C_ring_t ring      = H5C_RING_USER;
    hbool_t    ret_value = TRUE; /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity checks */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(inner_ring >= H5C_RING_USER);
    HDassert(inner_ring <= H5C_RING_SB);

    while (ring <= inner_ring) {
        if (cache_ptr->dirty_index_ring_size[ring] > 0)
            HGOTO_DONE(FALSE)

        ring++;
    } /* end while */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_cache_is_clean() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5C_verify_entry_type()
 *
 * Purpose:     Debugging function that attempts to look up an entry in the
 *		cache by its file address, and if found, test to see if its
 *		type field contains the expted value.
 *
 *		If the specified entry is in cache, *in_cache_ptr is set
 *		to TRUE, and *type_ok_ptr is set to TRUE or FALSE depending
 *		on whether the entries type field matches the expected_type
 *		parameter.
 *
 *		If the target entry is not in cache, *in_cache_ptr is
 *		set to FALSE, and *type_ok_ptr is undefined.
 *
 *		Note that this function is only defined if NDEBUG
 *		is not defined.
 *
 * Return:      FAIL if error is detected, SUCCEED otherwise.
 *
 * Programmer:  John Mainzer, 5/30/14
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5C_verify_entry_type(H5C_t *cache_ptr, haddr_t addr, const H5C_class_t *expected_type, hbool_t *in_cache_ptr,
                      hbool_t *type_ok_ptr)
{
    H5C_cache_entry_t *entry_ptr = NULL;
    herr_t             ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(cache_ptr);
    HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC);
    HDassert(H5F_addr_defined(addr));
    HDassert(expected_type);
    HDassert(in_cache_ptr);
    HDassert(type_ok_ptr);

    H5C__SEARCH_INDEX(cache_ptr, addr, entry_ptr, FAIL)

    if (entry_ptr == NULL)
        /* the entry doesn't exist in the cache -- report this
         * and quit.
         */
        *in_cache_ptr = FALSE;
    else {
        *in_cache_ptr = TRUE;

        if (entry_ptr->prefetched)
            *type_ok_ptr = (expected_type->id == entry_ptr->prefetch_type_id);
        else
            *type_ok_ptr = (expected_type == entry_ptr->type);
    } /* end else */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5C_verify_entry_type() */
#endif /* NDEBUG */