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/* $OpenBSD: rf_acctrace.h,v 1.2 1999/02/16 00:02:22 niklas Exp $ */
/* $NetBSD: rf_acctrace.h,v 1.3 1999/02/05 00:06:06 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
*
*****************************************************************************/
#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_ */
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