rf_acctrace.h revision 1.1
1 /* $NetBSD: rf_acctrace.h,v 1.1 1998/11/13 04:20:26 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 /***************************************************************************** 30 * 31 * acctrace.h -- header file for acctrace.c 32 * 33 *****************************************************************************/ 34 35 /* : 36 * 37 * Log: rf_acctrace.h,v 38 * Revision 1.32 1996/08/02 15:12:38 jimz 39 * remove dead code 40 * 41 * Revision 1.31 1996/07/27 14:34:39 jimz 42 * remove bogus semicolon 43 * 44 * Revision 1.30 1996/07/18 22:57:14 jimz 45 * port simulator to AIX 46 * 47 * Revision 1.29 1996/07/17 21:00:58 jimz 48 * clean up timer interface, tracing 49 * 50 * Revision 1.28 1996/06/10 11:55:47 jimz 51 * Straightened out some per-array/not-per-array distinctions, fixed 52 * a couple bugs related to confusion. Added shutdown lists. Removed 53 * layout shutdown function (now subsumed by shutdown lists). 54 * 55 * Revision 1.27 1996/06/09 02:36:46 jimz 56 * lots of little crufty cleanup- fixup whitespace 57 * issues, comment #ifdefs, improve typing in some 58 * places (esp size-related) 59 * / 60 * 61 * Revision 1.26 1996/06/05 18:06:02 jimz 62 * Major code cleanup. The Great Renaming is now done. 63 * Better modularity. Better typing. Fixed a bunch of 64 * synchronization bugs. Made a lot of global stuff 65 * per-desc or per-array. Removed dead code. 66 * 67 * Revision 1.25 1996/05/31 22:26:54 jimz 68 * fix a lot of mapping problems, memory allocation problems 69 * found some weird lock issues, fixed 'em 70 * more code cleanup 71 * 72 * Revision 1.24 1996/05/30 12:59:18 jimz 73 * make etimer happier, more portable 74 * 75 * Revision 1.23 1996/05/28 12:34:30 jimz 76 * nail down size of reconacc 77 * 78 * Revision 1.22 1996/05/23 00:33:23 jimz 79 * code cleanup: move all debug decls to rf_options.c, all extern 80 * debug decls to rf_options.h, all debug vars preceded by rf_ 81 * 82 * Revision 1.21 1996/05/18 19:51:34 jimz 83 * major code cleanup- fix syntax, make some types consistent, 84 * add prototypes, clean out dead code, et cetera 85 * 86 * Revision 1.20 1996/05/02 14:57:24 jimz 87 * change to boolean_t 88 * 89 * Revision 1.19 1995/12/14 18:37:06 jimz 90 * convert to rf_types.h types 91 * 92 * Revision 1.18 1995/11/30 16:26:49 wvcii 93 * added copyright info 94 * 95 * Revision 1.17 1995/09/30 19:49:23 jimz 96 * add AccTotals structure, for capturing totals in kernel 97 * 98 * Revision 1.16 1995/09/12 00:20:55 wvcii 99 * added support for tracing disk queue time 100 * 101 * Revision 1.15 95/09/06 19:23:12 wvcii 102 * increased MAX_IOS_PER_TRACE_ENTRY from 1 to 4 103 * 104 */ 105 106 #ifndef _RF__RF_ACCTRACE_H_ 107 #define _RF__RF_ACCTRACE_H_ 108 109 #include "rf_types.h" 110 #include "rf_hist.h" 111 #include "rf_etimer.h" 112 113 typedef struct RF_user_acc_stats_s { 114 RF_uint64 suspend_ovhd_us; /* us spent mucking in the access-suspension code */ 115 RF_uint64 map_us; /* us spent mapping the access */ 116 RF_uint64 lock_us; /* us spent locking & unlocking stripes, including time spent blocked */ 117 RF_uint64 dag_create_us; /* us spent creating the DAGs */ 118 RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not broken down into components */ 119 RF_uint64 exec_us; /* us spent in DispatchDAG */ 120 RF_uint64 exec_engine_us; /* us spent in engine, not including blocking time */ 121 RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and generally cleaning up */ 122 } RF_user_acc_stats_t; 123 124 typedef struct RF_recon_acc_stats_s { 125 RF_uint32 recon_start_to_fetch_us; 126 RF_uint32 recon_fetch_to_return_us; 127 RF_uint32 recon_return_to_submit_us; 128 } RF_recon_acc_stats_t; 129 130 typedef struct RF_acctrace_entry_s { 131 union { 132 RF_user_acc_stats_t user; 133 RF_recon_acc_stats_t recon; 134 } specific; 135 RF_uint8 reconacc; /* whether this is a tracerec for a user acc or a recon acc */ 136 RF_uint64 xor_us; /* us spent doing XORs */ 137 RF_uint64 q_us; /* us spent doing XORs */ 138 RF_uint64 plog_us; /* us spent waiting to stuff parity into log */ 139 RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl concurrent ops */ 140 RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting on the disk, incl concurrent ops */ 141 RF_uint64 total_us; /* total us spent on this access */ 142 RF_uint64 num_phys_ios; /* number of physical I/Os invoked */ 143 RF_uint64 phys_io_us; /* time of physical I/O */ 144 RF_Etimer_t tot_timer; /* a timer used to compute total access time */ 145 RF_Etimer_t timer; /* a generic timer val for timing events that live across procedure boundaries */ 146 RF_Etimer_t recon_timer; /* generic timer for recon stuff */ 147 RF_uint64 index; 148 } RF_AccTraceEntry_t; 149 150 typedef struct RF_AccTotals_s { 151 /* user acc stats */ 152 RF_uint64 suspend_ovhd_us; 153 RF_uint64 map_us; 154 RF_uint64 lock_us; 155 RF_uint64 dag_create_us; 156 RF_uint64 dag_retry_us; 157 RF_uint64 exec_us; 158 RF_uint64 exec_engine_us; 159 RF_uint64 cleanup_us; 160 RF_uint64 user_reccount; 161 /* recon acc stats */ 162 RF_uint64 recon_start_to_fetch_us; 163 RF_uint64 recon_fetch_to_return_us; 164 RF_uint64 recon_return_to_submit_us; 165 RF_uint64 recon_io_overflow_count; 166 RF_uint64 recon_phys_io_us; 167 RF_uint64 recon_num_phys_ios; 168 RF_uint64 recon_diskwait_us; 169 RF_uint64 recon_reccount; 170 /* trace entry stats */ 171 RF_uint64 xor_us; 172 RF_uint64 q_us; 173 RF_uint64 plog_us; 174 RF_uint64 diskqueue_us; 175 RF_uint64 diskwait_us; 176 RF_uint64 total_us; 177 RF_uint64 num_log_ents; 178 RF_uint64 phys_io_overflow_count; 179 RF_uint64 num_phys_ios; 180 RF_uint64 phys_io_us; 181 RF_uint64 bigvals; 182 /* histograms */ 183 RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS]; 184 RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS]; 185 } RF_AccTotals_t; 186 187 #if RF_UTILITY == 0 188 RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex) 189 #endif /* RF_UTILITY == 0 */ 190 191 int rf_ConfigureAccessTrace(RF_ShutdownList_t **listp); 192 void rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec); 193 void rf_FlushAccessTraceBuf(void); 194 195 #endif /* !_RF__RF_ACCTRACE_H_ */ 196
Indexes created Sat Sep 27 14:09:57 GMT 2025