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rf_acctrace.h revision 1.2
      1  1.2  oster /*	$NetBSD: rf_acctrace.h,v 1.2 1999/01/26 02:33:49 oster Exp $	*/
      2  1.1  oster /*
      3  1.1  oster  * Copyright (c) 1995 Carnegie-Mellon University.
      4  1.1  oster  * All rights reserved.
      5  1.1  oster  *
      6  1.1  oster  * Author: Mark Holland
      7  1.1  oster  *
      8  1.1  oster  * Permission to use, copy, modify and distribute this software and
      9  1.1  oster  * its documentation is hereby granted, provided that both the copyright
     10  1.1  oster  * notice and this permission notice appear in all copies of the
     11  1.1  oster  * software, derivative works or modified versions, and any portions
     12  1.1  oster  * thereof, and that both notices appear in supporting documentation.
     13  1.1  oster  *
     14  1.1  oster  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     15  1.1  oster  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     16  1.1  oster  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     17  1.1  oster  *
     18  1.1  oster  * Carnegie Mellon requests users of this software to return to
     19  1.1  oster  *
     20  1.1  oster  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     21  1.1  oster  *  School of Computer Science
     22  1.1  oster  *  Carnegie Mellon University
     23  1.1  oster  *  Pittsburgh PA 15213-3890
     24  1.1  oster  *
     25  1.1  oster  * any improvements or extensions that they make and grant Carnegie the
     26  1.1  oster  * rights to redistribute these changes.
     27  1.1  oster  */
     28  1.1  oster 
     29  1.1  oster /*****************************************************************************
     30  1.1  oster  *
     31  1.1  oster  * acctrace.h -- header file for acctrace.c
     32  1.1  oster  *
     33  1.1  oster  *****************************************************************************/
     34  1.1  oster 
     35  1.1  oster 
     36  1.1  oster #ifndef _RF__RF_ACCTRACE_H_
     37  1.1  oster #define _RF__RF_ACCTRACE_H_
     38  1.1  oster 
     39  1.1  oster #include "rf_types.h"
     40  1.1  oster #include "rf_hist.h"
     41  1.1  oster #include "rf_etimer.h"
     42  1.1  oster 
     43  1.1  oster typedef struct RF_user_acc_stats_s {
     44  1.1  oster   RF_uint64 suspend_ovhd_us;           /* us spent mucking in the access-suspension code */
     45  1.1  oster   RF_uint64 map_us;                    /* us spent mapping the access */
     46  1.1  oster   RF_uint64 lock_us;                   /* us spent locking & unlocking stripes, including time spent blocked */
     47  1.1  oster   RF_uint64 dag_create_us;             /* us spent creating the DAGs */
     48  1.1  oster   RF_uint64 dag_retry_us;              /* _total_ us spent retrying the op -- not broken down into components */
     49  1.1  oster   RF_uint64 exec_us;                   /* us spent in DispatchDAG */
     50  1.1  oster   RF_uint64 exec_engine_us;            /* us spent in engine, not including blocking time */
     51  1.1  oster   RF_uint64 cleanup_us;                /* us spent tearing down the dag & maps, and generally cleaning up */
     52  1.1  oster } RF_user_acc_stats_t;
     53  1.1  oster 
     54  1.1  oster typedef struct RF_recon_acc_stats_s {
     55  1.1  oster   RF_uint32 recon_start_to_fetch_us;
     56  1.1  oster   RF_uint32 recon_fetch_to_return_us;
     57  1.1  oster   RF_uint32 recon_return_to_submit_us;
     58  1.1  oster } RF_recon_acc_stats_t;
     59  1.1  oster 
     60  1.1  oster typedef struct RF_acctrace_entry_s {
     61  1.1  oster   union {
     62  1.1  oster     RF_user_acc_stats_t    user;
     63  1.1  oster     RF_recon_acc_stats_t   recon;
     64  1.1  oster   } specific;
     65  1.1  oster   RF_uint8     reconacc;         /* whether  this is a tracerec for a user acc or a recon acc */
     66  1.1  oster   RF_uint64    xor_us;           /* us spent doing XORs */
     67  1.1  oster   RF_uint64    q_us;             /* us spent doing XORs */
     68  1.1  oster   RF_uint64    plog_us;          /* us spent waiting to stuff parity into log */
     69  1.1  oster   RF_uint64    diskqueue_us;     /* _total_ us spent in disk queue(s), incl concurrent ops */
     70  1.1  oster   RF_uint64    diskwait_us;      /* _total_ us spent waiting actually waiting on the disk, incl concurrent ops */
     71  1.1  oster   RF_uint64    total_us;         /* total us spent on this access */
     72  1.1  oster   RF_uint64    num_phys_ios;     /* number of physical I/Os invoked */
     73  1.1  oster   RF_uint64    phys_io_us;       /* time of physical I/O */
     74  1.1  oster   RF_Etimer_t  tot_timer;        /* a timer used to compute total access time */
     75  1.1  oster   RF_Etimer_t  timer;            /* a generic timer val for timing events that live across procedure boundaries */
     76  1.1  oster   RF_Etimer_t  recon_timer;      /* generic timer for recon stuff */
     77  1.1  oster   RF_uint64    index;
     78  1.1  oster } RF_AccTraceEntry_t;
     79  1.1  oster 
     80  1.1  oster typedef struct RF_AccTotals_s {
     81  1.1  oster 	/* user acc stats */
     82  1.1  oster 	RF_uint64      suspend_ovhd_us;
     83  1.1  oster 	RF_uint64      map_us;
     84  1.1  oster 	RF_uint64      lock_us;
     85  1.1  oster 	RF_uint64      dag_create_us;
     86  1.1  oster 	RF_uint64      dag_retry_us;
     87  1.1  oster 	RF_uint64      exec_us;
     88  1.1  oster 	RF_uint64      exec_engine_us;
     89  1.1  oster 	RF_uint64      cleanup_us;
     90  1.1  oster 	RF_uint64      user_reccount;
     91  1.1  oster 	/* recon acc stats */
     92  1.1  oster 	RF_uint64      recon_start_to_fetch_us;
     93  1.1  oster 	RF_uint64      recon_fetch_to_return_us;
     94  1.1  oster 	RF_uint64      recon_return_to_submit_us;
     95  1.1  oster 	RF_uint64      recon_io_overflow_count;
     96  1.1  oster 	RF_uint64      recon_phys_io_us;
     97  1.1  oster 	RF_uint64      recon_num_phys_ios;
     98  1.1  oster 	RF_uint64      recon_diskwait_us;
     99  1.1  oster 	RF_uint64      recon_reccount;
    100  1.1  oster 	/* trace entry stats */
    101  1.1  oster 	RF_uint64      xor_us;
    102  1.1  oster 	RF_uint64      q_us;
    103  1.1  oster 	RF_uint64      plog_us;
    104  1.1  oster 	RF_uint64      diskqueue_us;
    105  1.1  oster 	RF_uint64      diskwait_us;
    106  1.1  oster 	RF_uint64      total_us;
    107  1.1  oster 	RF_uint64      num_log_ents;
    108  1.1  oster 	RF_uint64      phys_io_overflow_count;
    109  1.1  oster 	RF_uint64      num_phys_ios;
    110  1.1  oster 	RF_uint64      phys_io_us;
    111  1.1  oster 	RF_uint64      bigvals;
    112  1.1  oster 	/* histograms */
    113  1.1  oster 	RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS];
    114  1.1  oster 	RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS];
    115  1.1  oster } RF_AccTotals_t;
    116  1.1  oster 
    117  1.1  oster #if RF_UTILITY == 0
    118  1.1  oster RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex)
    119  1.1  oster #endif /* RF_UTILITY == 0 */
    120  1.1  oster 
    121  1.1  oster int  rf_ConfigureAccessTrace(RF_ShutdownList_t **listp);
    122  1.1  oster void rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec);
    123  1.1  oster void rf_FlushAccessTraceBuf(void);
    124  1.1  oster 
    125  1.1  oster #endif /* !_RF__RF_ACCTRACE_H_ */
    126