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 | |