| 1 | /* $NetBSD: rf_acctrace.h,v 1.10 2011/05/01 06:22:54 mrg 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@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 | #ifndef _RF__RF_ACCTRACE_H_ |
| 37 | #define _RF__RF_ACCTRACE_H_ |
| 38 | |
| 39 | #include <dev/raidframe/raidframevar.h> |
| 40 | #include "rf_hist.h" |
| 41 | #include "rf_etimer.h" |
| 42 | |
| 43 | typedef struct RF_user_acc_stats_s { |
| 44 | RF_uint64 suspend_ovhd_us; /* us spent mucking in the |
| 45 | * access-suspension code */ |
| 46 | RF_uint64 map_us; /* us spent mapping the access */ |
| 47 | RF_uint64 lock_us; /* us spent locking & unlocking stripes, |
| 48 | * including time spent blocked */ |
| 49 | RF_uint64 dag_create_us;/* us spent creating the DAGs */ |
| 50 | RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not |
| 51 | * broken down into components */ |
| 52 | RF_uint64 exec_us; /* us spent in DispatchDAG */ |
| 53 | RF_uint64 exec_engine_us; /* us spent in engine, not including |
| 54 | * blocking time */ |
| 55 | RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and |
| 56 | * generally cleaning up */ |
| 57 | } RF_user_acc_stats_t; |
| 58 | |
| 59 | typedef struct RF_recon_acc_stats_s { |
| 60 | RF_uint32 recon_start_to_fetch_us; |
| 61 | RF_uint32 recon_fetch_to_return_us; |
| 62 | RF_uint32 recon_return_to_submit_us; |
| 63 | } RF_recon_acc_stats_t; |
| 64 | |
| 65 | typedef struct RF_acctrace_entry_s { |
| 66 | union { |
| 67 | RF_user_acc_stats_t user; |
| 68 | RF_recon_acc_stats_t recon; |
| 69 | } specific; |
| 70 | RF_uint8 reconacc; /* whether this is a tracerec for a user acc |
| 71 | * or a recon acc */ |
| 72 | RF_uint64 xor_us; /* us spent doing XORs */ |
| 73 | RF_uint64 q_us; /* us spent doing XORs */ |
| 74 | RF_uint64 plog_us; /* us spent waiting to stuff parity into log */ |
| 75 | RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl |
| 76 | * concurrent ops */ |
| 77 | RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting |
| 78 | * on the disk, incl concurrent ops */ |
| 79 | RF_uint64 total_us; /* total us spent on this access */ |
| 80 | RF_uint64 num_phys_ios; /* number of physical I/Os invoked */ |
| 81 | RF_uint64 phys_io_us; /* time of physical I/O */ |
| 82 | RF_Etimer_t tot_timer; /* a timer used to compute total access time */ |
| 83 | RF_Etimer_t timer; /* a generic timer val for timing events that |
| 84 | * live across procedure boundaries */ |
| 85 | RF_Etimer_t recon_timer;/* generic timer for recon stuff */ |
| 86 | RF_uint64 index; |
| 87 | } RF_AccTraceEntry_t; |
| 88 | |
| 89 | typedef struct RF_AccTotals_s { |
| 90 | /* user acc stats */ |
| 91 | RF_uint64 suspend_ovhd_us; |
| 92 | RF_uint64 map_us; |
| 93 | RF_uint64 lock_us; |
| 94 | RF_uint64 dag_create_us; |
| 95 | RF_uint64 dag_retry_us; |
| 96 | RF_uint64 exec_us; |
| 97 | RF_uint64 exec_engine_us; |
| 98 | RF_uint64 cleanup_us; |
| 99 | RF_uint64 user_reccount; |
| 100 | /* recon acc stats */ |
| 101 | RF_uint64 recon_start_to_fetch_us; |
| 102 | RF_uint64 recon_fetch_to_return_us; |
| 103 | RF_uint64 recon_return_to_submit_us; |
| 104 | RF_uint64 recon_io_overflow_count; |
| 105 | RF_uint64 recon_phys_io_us; |
| 106 | RF_uint64 recon_num_phys_ios; |
| 107 | RF_uint64 recon_diskwait_us; |
| 108 | RF_uint64 recon_reccount; |
| 109 | /* trace entry stats */ |
| 110 | RF_uint64 xor_us; |
| 111 | RF_uint64 q_us; |
| 112 | RF_uint64 plog_us; |
| 113 | RF_uint64 diskqueue_us; |
| 114 | RF_uint64 diskwait_us; |
| 115 | RF_uint64 total_us; |
| 116 | RF_uint64 num_log_ents; |
| 117 | RF_uint64 phys_io_overflow_count; |
| 118 | RF_uint64 num_phys_ios; |
| 119 | RF_uint64 phys_io_us; |
| 120 | RF_uint64 bigvals; |
| 121 | /* histograms */ |
| 122 | RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS]; |
| 123 | RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS]; |
| 124 | } RF_AccTotals_t; |
| 125 | |
| 126 | extern rf_declare_mutex2(rf_tracing_mutex); |
| 127 | |
| 128 | |
| 129 | int rf_ConfigureAccessTrace(RF_ShutdownList_t ** listp); |
| 130 | void rf_LogTraceRec(RF_Raid_t * raid, RF_AccTraceEntry_t * rec); |
| 131 | |
| 132 | #endif /* !_RF__RF_ACCTRACE_H_ */ |
| 133 | |