This source file includes following definitions.
- rf_ShutdownAccessTrace
- rf_ConfigureAccessTrace
- rf_LogTraceRec
- rf_FlushAccessTraceBuf
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38 #include <sys/stat.h>
39 #include <sys/types.h>
40
41 #include "rf_threadstuff.h"
42 #include "rf_types.h"
43 #include "rf_debugMem.h"
44 #include "rf_acctrace.h"
45 #include "rf_general.h"
46 #include "rf_raid.h"
47 #include "rf_etimer.h"
48 #include "rf_hist.h"
49 #include "rf_shutdown.h"
50
51 static long numTracesSoFar;
52 static int accessTraceBufCount = 0;
53 static RF_AccTraceEntry_t *access_tracebuf;
54 static long traceCount;
55
56 int rf_stopCollectingTraces;
57 RF_DECLARE_MUTEX(rf_tracing_mutex);
58 int rf_trace_fd;
59
60 void rf_ShutdownAccessTrace(void *);
61
62 void
63 rf_ShutdownAccessTrace(void *ignored)
64 {
65 if (rf_accessTraceBufSize) {
66 if (accessTraceBufCount)
67 rf_FlushAccessTraceBuf();
68 RF_Free(access_tracebuf, rf_accessTraceBufSize *
69 sizeof(RF_AccTraceEntry_t));
70 }
71 rf_mutex_destroy(&rf_tracing_mutex);
72 }
73
74 int
75 rf_ConfigureAccessTrace(RF_ShutdownList_t **listp)
76 {
77 int rc;
78
79 numTracesSoFar = accessTraceBufCount = rf_stopCollectingTraces = 0;
80 if (rf_accessTraceBufSize) {
81 RF_Malloc(access_tracebuf, rf_accessTraceBufSize *
82 sizeof(RF_AccTraceEntry_t), (RF_AccTraceEntry_t *));
83 accessTraceBufCount = 0;
84 }
85 traceCount = 0;
86 numTracesSoFar = 0;
87 rc = rf_mutex_init(&rf_tracing_mutex);
88 if (rc) {
89 RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d.\n",
90 __FILE__, __LINE__, rc);
91 }
92 rc = rf_ShutdownCreate(listp, rf_ShutdownAccessTrace, NULL);
93 if (rc) {
94 RF_ERRORMSG3("Unable to add to shutdown list file %s line %d"
95 " rc=%d.\n", __FILE__, __LINE__, rc);
96 if (rf_accessTraceBufSize) {
97 RF_Free(access_tracebuf, rf_accessTraceBufSize *
98 sizeof(RF_AccTraceEntry_t));
99 rf_mutex_destroy(&rf_tracing_mutex);
100 }
101 }
102 return (rc);
103 }
104
105
106
107
108
109 void
110 rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec)
111 {
112 RF_AccTotals_t *acc = &raid->acc_totals;
113 #if 0
114 RF_Etimer_t timer;
115 int i, n;
116 #endif
117
118 if (rf_stopCollectingTraces || ((rf_maxNumTraces >= 0) &&
119 (numTracesSoFar >= rf_maxNumTraces)))
120 return;
121
122
123 if (!raid->keep_acc_totals)
124 return;
125
126 acc->num_log_ents++;
127 if (rec->reconacc) {
128 acc->recon_start_to_fetch_us +=
129 rec->specific.recon.recon_start_to_fetch_us;
130 acc->recon_fetch_to_return_us +=
131 rec->specific.recon.recon_fetch_to_return_us;
132 acc->recon_return_to_submit_us +=
133 rec->specific.recon.recon_return_to_submit_us;
134 acc->recon_num_phys_ios += rec->num_phys_ios;
135 acc->recon_phys_io_us += rec->phys_io_us;
136 acc->recon_diskwait_us += rec->diskwait_us;
137 acc->recon_reccount++;
138 } else {
139 RF_HIST_ADD(acc->tot_hist, rec->total_us);
140 RF_HIST_ADD(acc->dw_hist, rec->diskwait_us);
141
142
143
144
145
146
147 if (rec->diskwait_us > 100000)
148 acc->bigvals++;
149
150 acc->total_us += rec->total_us;
151 acc->suspend_ovhd_us += rec->specific.user.suspend_ovhd_us;
152 acc->map_us += rec->specific.user.map_us;
153 acc->lock_us += rec->specific.user.lock_us;
154 acc->dag_create_us += rec->specific.user.dag_create_us;
155 acc->dag_retry_us += rec->specific.user.dag_retry_us;
156 acc->exec_us += rec->specific.user.exec_us;
157 acc->cleanup_us += rec->specific.user.cleanup_us;
158 acc->exec_engine_us += rec->specific.user.exec_engine_us;
159 acc->xor_us += rec->xor_us;
160 acc->q_us += rec->q_us;
161 acc->plog_us += rec->plog_us;
162 acc->diskqueue_us += rec->diskqueue_us;
163 acc->diskwait_us += rec->diskwait_us;
164 acc->num_phys_ios += rec->num_phys_ios;
165 acc->phys_io_us = rec->phys_io_us;
166 acc->user_reccount++;
167 }
168 }
169
170
171
172
173
174
175
176 void
177 rf_FlushAccessTraceBuf(void)
178 {
179 accessTraceBufCount = 0;
180 }