smstats.h

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/*
 * (c) Copyright 2011-2013, Hewlett-Packard Development Company, LP
 */

/*<std-header orig-src='shore' incl-file-exclusion='SMSTATS_H'>

 $Id: smstats.h,v 1.36 2010/09/21 14:26:20 nhall Exp $

SHORE -- Scalable Heterogeneous Object REpository

Copyright (c) 1994-99 Computer Sciences Department, University of
                      Wisconsin -- Madison
All Rights Reserved.

Permission to use, copy, modify and distribute this software and its
documentation is hereby granted, provided that both the copyright
notice and this permission notice appear in all copies of the
software, derivative works or modified versions, and any portions
thereof, and that both notices appear in supporting documentation.

THE AUTHORS AND THE COMPUTER SCIENCES DEPARTMENT OF THE UNIVERSITY
OF WISCONSIN - MADISON ALLOW FREE USE OF THIS SOFTWARE IN ITS
"AS IS" CONDITION, AND THEY DISCLAIM ANY LIABILITY OF ANY KIND
FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.

This software was developed with support by the Advanced Research
Project Agency, ARPA order number 018 (formerly 8230), monitored by
the U.S. Army Research Laboratory under contract DAAB07-91-C-Q518.
Further funding for this work was provided by DARPA through
Rome Research Laboratory Contract No. F30602-97-2-0247.

*/

#ifndef __SMSTATS_H
#define __SMSTATS_H

#include "w_defines.h"
#include <array>

/*  -- do not edit anything above this line --   </std-header>*/

// This file is included in sm.h in the middle of the class ss_m
// declaration.  Member functions are defined in sm.cpp


template<typename E>
constexpr auto enum_to_base(E e)->typename std::underlying_type<E>::type {
    return static_cast<typename std::underlying_type<E>::type>(e);
}

enum class sm_stat_id : size_t {
    rwlock_r_wait,
    rwlock_w_wait,
    needs_latch_condl,
    needs_latch_uncondl,
    latch_condl_nowait,
    latch_uncondl_nowait,
    cleaned_pages,
    cleaner_time_cpu,
    cleaner_time_io,
    cleaner_time_copy,
    bf_eviction_attempts,
    bf_evict,
    bf_evict_duration,
    bf_hit_cnt,
    vol_reads,
    vol_writes,
    vol_blks_written,
    log_dup_sync_cnt,
    log_fsync_cnt,
    log_chkpt_cnt,
    log_fetches,
    log_inserts,
    log_buffer_hit,
    log_bytes_generated,
    log_bytes_written,
    log_short_flush,
    log_long_flush,
    // nonunique_fingerprints,
    // unique_fingerprints,
    bt_find_cnt,
    bt_insert_cnt,
    bt_remove_cnt,
    bt_traverse_cnt,
    bt_partial_traverse_cnt,
    bt_grows,
    bt_shrinks,
    bt_links,
    bf_fix_cnt,
    page_alloc_cnt,
    page_dealloc_cnt,
    xct_log_flush,
    begin_xct_cnt,
    commit_xct_cnt,
    abort_xct_cnt,
    rollback_savept_cnt,
    internal_rollback_cnt,
    anchors,
    compensate_in_log,
    // compensate_in_xct,
    compensate_records,
    compensate_skipped,
    bf_fix_nonroot_count,
    bf_fix_nonroot_miss_count,
    bf_fix_adjusted_parent,
    restart_log_analysis_time,
    restart_redo_time,
    restart_dirty_pages,
    restore_log_volume,
    la_log_slow,
    la_activations,
    la_read_volume,
    la_read_count,
    la_open_count,
    la_read_time,
    la_block_writes,
    la_img_compressed_bytes,
    log_img_format_bytes,
    la_skipped_bytes,
    la_img_trimmed,
    la_wasted_read,
    stat_max // Leave this one here to count the number of stats!
};

using sm_stats_t = std::array<long, enum_to_base(sm_stat_id::stat_max)>;

// CS TODO: move this into some static class instead of global functions
void print_sm_stats(sm_stats_t& stats, std::ostream& out);

const char* get_stat_name(sm_stat_id s);

const char* get_stat_expl(sm_stat_id s);

struct sm_config_info_t {
    u_long page_size;         // bytes in page, including all headers

    //TODO: SHORE-KITS-API
    // shore-kits needs max_small_rec; shore-sm-6.0.1 initializes this field at
    // several places. Make sure Zero similarly initializes max_small_rec
    u_long max_small_rec;      // maximum number of bytes in a "small"
    // (ie. on one page) record.  This is
    // align(header_len)+align(body_len).
    u_long lg_rec_page_space;

    u_long buffer_pool_size;    // buffer pool size in kilo-bytes

    u_long max_btree_entry_size;

    u_long exts_on_page;

    u_long pages_per_ext;

    bool logging;

    friend ostream& operator<<(ostream&, const sm_config_info_t& s);
};

/*<std-footer incl-file-exclusion='SMSTATS_H'>  -- do not edit anything below this line -- */

#endif // __SMSTATS_H /*</std-footer>*/