include/trace/events/iocost.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM iocost
   4
   5 struct ioc;
   6 struct ioc_now;
   7 struct ioc_gq;
   8
   9 #if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ)
  10 #define _TRACE_BLK_IOCOST_H
  11
  12 #include <linux/tracepoint.h>
  13
  14 TRACE_EVENT(iocost_iocg_activate,
  15
  16         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
  17                 u64 last_period, u64 cur_period, u64 vtime),
  18
  19         TP_ARGS(iocg, path, now, last_period, cur_period, vtime),
  20
  21         TP_STRUCT__entry (
  22                 __string(devname, ioc_name(iocg->ioc))
  23                 __string(cgroup, path)
  24                 __field(u64, now)
  25                 __field(u64, vnow)
  26                 __field(u64, vrate)
  27                 __field(u64, last_period)
  28                 __field(u64, cur_period)
  29                 __field(u64, vtime)
  30                 __field(u32, weight)
  31                 __field(u32, inuse)
  32                 __field(u64, hweight_active)
  33                 __field(u64, hweight_inuse)
  34         ),
  35
  36         TP_fast_assign(
  37                 __assign_str(devname, ioc_name(iocg->ioc));
  38                 __assign_str(cgroup, path);
  39                 __entry->now = now->now;
  40                 __entry->vnow = now->vnow;
  41                 __entry->vrate = now->vrate;
  42                 __entry->last_period = last_period;
  43                 __entry->cur_period = cur_period;
  44                 __entry->vtime = vtime;
  45                 __entry->weight = iocg->weight;
  46                 __entry->inuse = iocg->inuse;
  47                 __entry->hweight_active = iocg->hweight_active;
  48                 __entry->hweight_inuse = iocg->hweight_inuse;
  49         ),
  50
  51         TP_printk("[%s:%s] now=%llu:%llu vrate=%llu "
  52                   "period=%llu->%llu vtime=%llu "
  53                   "weight=%u/%u hweight=%llu/%llu",
  54                 __get_str(devname), __get_str(cgroup),
  55                 __entry->now, __entry->vnow, __entry->vrate,
  56                 __entry->last_period, __entry->cur_period,
  57                 __entry->vtime, __entry->inuse, __entry->weight,
  58                 __entry->hweight_inuse, __entry->hweight_active
  59         )
  60 );
  61
  62 DECLARE_EVENT_CLASS(iocg_inuse_update,
  63
  64         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
  65                 u32 old_inuse, u32 new_inuse,
  66                 u64 old_hw_inuse, u64 new_hw_inuse),
  67
  68         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
  69                 old_hw_inuse, new_hw_inuse),
  70
  71         TP_STRUCT__entry (
  72                 __string(devname, ioc_name(iocg->ioc))
  73                 __string(cgroup, path)
  74                 __field(u64, now)
  75                 __field(u32, old_inuse)
  76                 __field(u32, new_inuse)
  77                 __field(u64, old_hweight_inuse)
  78                 __field(u64, new_hweight_inuse)
  79         ),
  80
  81         TP_fast_assign(
  82                 __assign_str(devname, ioc_name(iocg->ioc));
  83                 __assign_str(cgroup, path);
  84                 __entry->now = now->now;
  85                 __entry->old_inuse = old_inuse;
  86                 __entry->new_inuse = new_inuse;
  87                 __entry->old_hweight_inuse = old_hw_inuse;
  88                 __entry->new_hweight_inuse = new_hw_inuse;
  89         ),
  90
  91         TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu",
  92                 __get_str(devname), __get_str(cgroup), __entry->now,
  93                 __entry->old_inuse, __entry->new_inuse,
  94                 __entry->old_hweight_inuse, __entry->new_hweight_inuse
  95         )
  96 );
  97
  98 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_shortage,
  99
 100         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 101                 u32 old_inuse, u32 new_inuse,
 102                 u64 old_hw_inuse, u64 new_hw_inuse),
 103
 104         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 105                 old_hw_inuse, new_hw_inuse)
 106 );
 107
 108 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_transfer,
 109
 110         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 111                 u32 old_inuse, u32 new_inuse,
 112                 u64 old_hw_inuse, u64 new_hw_inuse),
 113
 114         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 115                 old_hw_inuse, new_hw_inuse)
 116 );
 117
 118 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_adjust,
 119
 120         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 121                 u32 old_inuse, u32 new_inuse,
 122                 u64 old_hw_inuse, u64 new_hw_inuse),
 123
 124         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 125                 old_hw_inuse, new_hw_inuse)
 126 );
 127
 128 TRACE_EVENT(iocost_ioc_vrate_adj,
 129
 130         TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 *missed_ppm,
 131                 u32 rq_wait_pct, int nr_lagging, int nr_shortages),
 132
 133         TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages),
 134
 135         TP_STRUCT__entry (
 136                 __string(devname, ioc_name(ioc))
 137                 __field(u64, old_vrate)
 138                 __field(u64, new_vrate)
 139                 __field(int, busy_level)
 140                 __field(u32, read_missed_ppm)
 141                 __field(u32, write_missed_ppm)
 142                 __field(u32, rq_wait_pct)
 143                 __field(int, nr_lagging)
 144                 __field(int, nr_shortages)
 145         ),
 146
 147         TP_fast_assign(
 148                 __assign_str(devname, ioc_name(ioc));
 149                 __entry->old_vrate = atomic64_read(&ioc->vtime_rate);;
 150                 __entry->new_vrate = new_vrate;
 151                 __entry->busy_level = ioc->busy_level;
 152                 __entry->read_missed_ppm = missed_ppm[READ];
 153                 __entry->write_missed_ppm = missed_ppm[WRITE];
 154                 __entry->rq_wait_pct = rq_wait_pct;
 155                 __entry->nr_lagging = nr_lagging;
 156                 __entry->nr_shortages = nr_shortages;
 157         ),
 158
 159         TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d",
 160                 __get_str(devname), __entry->old_vrate, __entry->new_vrate,
 161                 __entry->busy_level,
 162                 __entry->read_missed_ppm, __entry->write_missed_ppm,
 163                 __entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages
 164         )
 165 );
 166
 167 TRACE_EVENT(iocost_iocg_forgive_debt,
 168
 169         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 170                 u32 usage_pct, u64 old_debt, u64 new_debt,
 171                 u64 old_delay, u64 new_delay),
 172
 173         TP_ARGS(iocg, path, now, usage_pct,
 174                 old_debt, new_debt, old_delay, new_delay),
 175
 176         TP_STRUCT__entry (
 177                 __string(devname, ioc_name(iocg->ioc))
 178                 __string(cgroup, path)
 179                 __field(u64, now)
 180                 __field(u64, vnow)
 181                 __field(u32, usage_pct)
 182                 __field(u64, old_debt)
 183                 __field(u64, new_debt)
 184                 __field(u64, old_delay)
 185                 __field(u64, new_delay)
 186         ),
 187
 188         TP_fast_assign(
 189                 __assign_str(devname, ioc_name(iocg->ioc));
 190                 __assign_str(cgroup, path);
 191                 __entry->now = now->now;
 192                 __entry->vnow = now->vnow;
 193                 __entry->usage_pct = usage_pct;
 194                 __entry->old_debt = old_debt;
 195                 __entry->new_debt = new_debt;
 196                 __entry->old_delay = old_delay;
 197                 __entry->new_delay = new_delay;
 198         ),
 199
 200         TP_printk("[%s:%s] now=%llu:%llu usage=%u debt=%llu->%llu delay=%llu->%llu",
 201                 __get_str(devname), __get_str(cgroup),
 202                 __entry->now, __entry->vnow, __entry->usage_pct,
 203                 __entry->old_debt, __entry->new_debt,
 204                 __entry->old_delay, __entry->new_delay
 205         )
 206 );
 207
 208 #endif /* _TRACE_BLK_IOCOST_H */
 209
 210 /* This part must be outside protection */
 211 #include <trace/define_trace.h>