196 lines
7.0 KiB
C
196 lines
7.0 KiB
C
/* $NetBSD: rf_acctrace.h,v 1.1 1998/11/13 04:20:26 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*****************************************************************************
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*
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* acctrace.h -- header file for acctrace.c
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*
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*****************************************************************************/
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/* :
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*
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* Log: rf_acctrace.h,v
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* Revision 1.32 1996/08/02 15:12:38 jimz
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* remove dead code
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*
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* Revision 1.31 1996/07/27 14:34:39 jimz
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* remove bogus semicolon
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*
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* Revision 1.30 1996/07/18 22:57:14 jimz
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* port simulator to AIX
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*
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* Revision 1.29 1996/07/17 21:00:58 jimz
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* clean up timer interface, tracing
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*
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* Revision 1.28 1996/06/10 11:55:47 jimz
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* Straightened out some per-array/not-per-array distinctions, fixed
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* a couple bugs related to confusion. Added shutdown lists. Removed
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* layout shutdown function (now subsumed by shutdown lists).
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*
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* Revision 1.27 1996/06/09 02:36:46 jimz
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* lots of little crufty cleanup- fixup whitespace
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* issues, comment #ifdefs, improve typing in some
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* places (esp size-related)
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* /
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*
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* Revision 1.26 1996/06/05 18:06:02 jimz
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* Major code cleanup. The Great Renaming is now done.
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* Better modularity. Better typing. Fixed a bunch of
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* synchronization bugs. Made a lot of global stuff
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* per-desc or per-array. Removed dead code.
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*
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* Revision 1.25 1996/05/31 22:26:54 jimz
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* fix a lot of mapping problems, memory allocation problems
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* found some weird lock issues, fixed 'em
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* more code cleanup
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*
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* Revision 1.24 1996/05/30 12:59:18 jimz
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* make etimer happier, more portable
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*
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* Revision 1.23 1996/05/28 12:34:30 jimz
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* nail down size of reconacc
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*
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* Revision 1.22 1996/05/23 00:33:23 jimz
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* code cleanup: move all debug decls to rf_options.c, all extern
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* debug decls to rf_options.h, all debug vars preceded by rf_
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*
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* Revision 1.21 1996/05/18 19:51:34 jimz
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* major code cleanup- fix syntax, make some types consistent,
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* add prototypes, clean out dead code, et cetera
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*
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* Revision 1.20 1996/05/02 14:57:24 jimz
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* change to boolean_t
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*
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* Revision 1.19 1995/12/14 18:37:06 jimz
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* convert to rf_types.h types
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*
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* Revision 1.18 1995/11/30 16:26:49 wvcii
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* added copyright info
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*
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* Revision 1.17 1995/09/30 19:49:23 jimz
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* add AccTotals structure, for capturing totals in kernel
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*
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* Revision 1.16 1995/09/12 00:20:55 wvcii
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* added support for tracing disk queue time
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*
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* Revision 1.15 95/09/06 19:23:12 wvcii
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* increased MAX_IOS_PER_TRACE_ENTRY from 1 to 4
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*
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*/
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#ifndef _RF__RF_ACCTRACE_H_
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#define _RF__RF_ACCTRACE_H_
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#include "rf_types.h"
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#include "rf_hist.h"
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#include "rf_etimer.h"
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typedef struct RF_user_acc_stats_s {
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RF_uint64 suspend_ovhd_us; /* us spent mucking in the access-suspension code */
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RF_uint64 map_us; /* us spent mapping the access */
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RF_uint64 lock_us; /* us spent locking & unlocking stripes, including time spent blocked */
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RF_uint64 dag_create_us; /* us spent creating the DAGs */
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RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not broken down into components */
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RF_uint64 exec_us; /* us spent in DispatchDAG */
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RF_uint64 exec_engine_us; /* us spent in engine, not including blocking time */
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RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and generally cleaning up */
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} RF_user_acc_stats_t;
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typedef struct RF_recon_acc_stats_s {
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RF_uint32 recon_start_to_fetch_us;
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RF_uint32 recon_fetch_to_return_us;
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RF_uint32 recon_return_to_submit_us;
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} RF_recon_acc_stats_t;
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typedef struct RF_acctrace_entry_s {
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union {
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RF_user_acc_stats_t user;
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RF_recon_acc_stats_t recon;
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} specific;
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RF_uint8 reconacc; /* whether this is a tracerec for a user acc or a recon acc */
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RF_uint64 xor_us; /* us spent doing XORs */
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RF_uint64 q_us; /* us spent doing XORs */
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RF_uint64 plog_us; /* us spent waiting to stuff parity into log */
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RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl concurrent ops */
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RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting on the disk, incl concurrent ops */
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RF_uint64 total_us; /* total us spent on this access */
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RF_uint64 num_phys_ios; /* number of physical I/Os invoked */
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RF_uint64 phys_io_us; /* time of physical I/O */
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RF_Etimer_t tot_timer; /* a timer used to compute total access time */
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RF_Etimer_t timer; /* a generic timer val for timing events that live across procedure boundaries */
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RF_Etimer_t recon_timer; /* generic timer for recon stuff */
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RF_uint64 index;
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} RF_AccTraceEntry_t;
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typedef struct RF_AccTotals_s {
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/* user acc stats */
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RF_uint64 suspend_ovhd_us;
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RF_uint64 map_us;
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RF_uint64 lock_us;
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RF_uint64 dag_create_us;
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RF_uint64 dag_retry_us;
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RF_uint64 exec_us;
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RF_uint64 exec_engine_us;
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RF_uint64 cleanup_us;
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RF_uint64 user_reccount;
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/* recon acc stats */
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RF_uint64 recon_start_to_fetch_us;
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RF_uint64 recon_fetch_to_return_us;
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RF_uint64 recon_return_to_submit_us;
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RF_uint64 recon_io_overflow_count;
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RF_uint64 recon_phys_io_us;
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RF_uint64 recon_num_phys_ios;
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RF_uint64 recon_diskwait_us;
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RF_uint64 recon_reccount;
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/* trace entry stats */
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RF_uint64 xor_us;
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RF_uint64 q_us;
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RF_uint64 plog_us;
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RF_uint64 diskqueue_us;
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RF_uint64 diskwait_us;
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RF_uint64 total_us;
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RF_uint64 num_log_ents;
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RF_uint64 phys_io_overflow_count;
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RF_uint64 num_phys_ios;
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RF_uint64 phys_io_us;
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RF_uint64 bigvals;
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/* histograms */
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RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS];
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RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS];
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} RF_AccTotals_t;
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#if RF_UTILITY == 0
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RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex)
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#endif /* RF_UTILITY == 0 */
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int rf_ConfigureAccessTrace(RF_ShutdownList_t **listp);
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void rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec);
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void rf_FlushAccessTraceBuf(void);
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#endif /* !_RF__RF_ACCTRACE_H_ */
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