diff options
Diffstat (limited to 'sys/dev/raidframe/rf_acctrace.h')
| -rw-r--r-- | sys/dev/raidframe/rf_acctrace.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_acctrace.h b/sys/dev/raidframe/rf_acctrace.h new file mode 100644 index 00000000000..0b3441e3e49 --- /dev/null +++ b/sys/dev/raidframe/rf_acctrace.h @@ -0,0 +1,196 @@ +/* $OpenBSD: rf_acctrace.h,v 1.1 1999/01/11 14:28:58 niklas Exp $ */ +/* $NetBSD: rf_acctrace.h,v 1.1 1998/11/13 04:20:26 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Mark Holland + * + * 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. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +/***************************************************************************** + * + * acctrace.h -- header file for acctrace.c + * + *****************************************************************************/ + +/* : + * + * Log: rf_acctrace.h,v + * Revision 1.32 1996/08/02 15:12:38 jimz + * remove dead code + * + * Revision 1.31 1996/07/27 14:34:39 jimz + * remove bogus semicolon + * + * Revision 1.30 1996/07/18 22:57:14 jimz + * port simulator to AIX + * + * Revision 1.29 1996/07/17 21:00:58 jimz + * clean up timer interface, tracing + * + * Revision 1.28 1996/06/10 11:55:47 jimz + * Straightened out some per-array/not-per-array distinctions, fixed + * a couple bugs related to confusion. Added shutdown lists. Removed + * layout shutdown function (now subsumed by shutdown lists). + * + * Revision 1.27 1996/06/09 02:36:46 jimz + * lots of little crufty cleanup- fixup whitespace + * issues, comment #ifdefs, improve typing in some + * places (esp size-related) + * / + * + * Revision 1.26 1996/06/05 18:06:02 jimz + * Major code cleanup. The Great Renaming is now done. + * Better modularity. Better typing. Fixed a bunch of + * synchronization bugs. Made a lot of global stuff + * per-desc or per-array. Removed dead code. + * + * Revision 1.25 1996/05/31 22:26:54 jimz + * fix a lot of mapping problems, memory allocation problems + * found some weird lock issues, fixed 'em + * more code cleanup + * + * Revision 1.24 1996/05/30 12:59:18 jimz + * make etimer happier, more portable + * + * Revision 1.23 1996/05/28 12:34:30 jimz + * nail down size of reconacc + * + * Revision 1.22 1996/05/23 00:33:23 jimz + * code cleanup: move all debug decls to rf_options.c, all extern + * debug decls to rf_options.h, all debug vars preceded by rf_ + * + * Revision 1.21 1996/05/18 19:51:34 jimz + * major code cleanup- fix syntax, make some types consistent, + * add prototypes, clean out dead code, et cetera + * + * Revision 1.20 1996/05/02 14:57:24 jimz + * change to boolean_t + * + * Revision 1.19 1995/12/14 18:37:06 jimz + * convert to rf_types.h types + * + * Revision 1.18 1995/11/30 16:26:49 wvcii + * added copyright info + * + * Revision 1.17 1995/09/30 19:49:23 jimz + * add AccTotals structure, for capturing totals in kernel + * + * Revision 1.16 1995/09/12 00:20:55 wvcii + * added support for tracing disk queue time + * + * Revision 1.15 95/09/06 19:23:12 wvcii + * increased MAX_IOS_PER_TRACE_ENTRY from 1 to 4 + * + */ + +#ifndef _RF__RF_ACCTRACE_H_ +#define _RF__RF_ACCTRACE_H_ + +#include "rf_types.h" +#include "rf_hist.h" +#include "rf_etimer.h" + +typedef struct RF_user_acc_stats_s { + RF_uint64 suspend_ovhd_us; /* us spent mucking in the access-suspension code */ + RF_uint64 map_us; /* us spent mapping the access */ + RF_uint64 lock_us; /* us spent locking & unlocking stripes, including time spent blocked */ + RF_uint64 dag_create_us; /* us spent creating the DAGs */ + RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not broken down into components */ + RF_uint64 exec_us; /* us spent in DispatchDAG */ + RF_uint64 exec_engine_us; /* us spent in engine, not including blocking time */ + RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and generally cleaning up */ +} RF_user_acc_stats_t; + +typedef struct RF_recon_acc_stats_s { + RF_uint32 recon_start_to_fetch_us; + RF_uint32 recon_fetch_to_return_us; + RF_uint32 recon_return_to_submit_us; +} RF_recon_acc_stats_t; + +typedef struct RF_acctrace_entry_s { + union { + RF_user_acc_stats_t user; + RF_recon_acc_stats_t recon; + } specific; + RF_uint8 reconacc; /* whether this is a tracerec for a user acc or a recon acc */ + RF_uint64 xor_us; /* us spent doing XORs */ + RF_uint64 q_us; /* us spent doing XORs */ + RF_uint64 plog_us; /* us spent waiting to stuff parity into log */ + RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl concurrent ops */ + RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting on the disk, incl concurrent ops */ + RF_uint64 total_us; /* total us spent on this access */ + RF_uint64 num_phys_ios; /* number of physical I/Os invoked */ + RF_uint64 phys_io_us; /* time of physical I/O */ + RF_Etimer_t tot_timer; /* a timer used to compute total access time */ + RF_Etimer_t timer; /* a generic timer val for timing events that live across procedure boundaries */ + RF_Etimer_t recon_timer; /* generic timer for recon stuff */ + RF_uint64 index; +} RF_AccTraceEntry_t; + +typedef struct RF_AccTotals_s { + /* user acc stats */ + RF_uint64 suspend_ovhd_us; + RF_uint64 map_us; + RF_uint64 lock_us; + RF_uint64 dag_create_us; + RF_uint64 dag_retry_us; + RF_uint64 exec_us; + RF_uint64 exec_engine_us; + RF_uint64 cleanup_us; + RF_uint64 user_reccount; + /* recon acc stats */ + RF_uint64 recon_start_to_fetch_us; + RF_uint64 recon_fetch_to_return_us; + RF_uint64 recon_return_to_submit_us; + RF_uint64 recon_io_overflow_count; + RF_uint64 recon_phys_io_us; + RF_uint64 recon_num_phys_ios; + RF_uint64 recon_diskwait_us; + RF_uint64 recon_reccount; + /* trace entry stats */ + RF_uint64 xor_us; + RF_uint64 q_us; + RF_uint64 plog_us; + RF_uint64 diskqueue_us; + RF_uint64 diskwait_us; + RF_uint64 total_us; + RF_uint64 num_log_ents; + RF_uint64 phys_io_overflow_count; + RF_uint64 num_phys_ios; + RF_uint64 phys_io_us; + RF_uint64 bigvals; + /* histograms */ + RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS]; + RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS]; +} RF_AccTotals_t; + +#if RF_UTILITY == 0 +RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex) +#endif /* RF_UTILITY == 0 */ + +int rf_ConfigureAccessTrace(RF_ShutdownList_t **listp); +void rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec); +void rf_FlushAccessTraceBuf(void); + +#endif /* !_RF__RF_ACCTRACE_H_ */ |