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, last_vtime)
  30                 __field(u64, vtime)
  31                 __field(u32, weight)
  32                 __field(u32, inuse)
  33                 __field(u64, hweight_active)
  34                 __field(u64, hweight_inuse)
  35         ),
  36
  37         TP_fast_assign(
  38                 __assign_str(devname, ioc_name(iocg->ioc));
  39                 __assign_str(cgroup, path);
  40                 __entry->now = now->now;
  41                 __entry->vnow = now->vnow;
  42                 __entry->vrate = now->vrate;
  43                 __entry->last_period = last_period;
  44                 __entry->cur_period = cur_period;
  45                 __entry->last_vtime = iocg->last_vtime;
  46                 __entry->vtime = vtime;
  47                 __entry->weight = iocg->weight;
  48                 __entry->inuse = iocg->inuse;
  49                 __entry->hweight_active = iocg->hweight_active;
  50                 __entry->hweight_inuse = iocg->hweight_inuse;
  51         ),
  52
  53         TP_printk("[%s:%s] now=%llu:%llu vrate=%llu "
  54                   "period=%llu->%llu vtime=%llu->%llu "
  55                   "weight=%u/%u hweight=%llu/%llu",
  56                 __get_str(devname), __get_str(cgroup),
  57                 __entry->now, __entry->vnow, __entry->vrate,
  58                 __entry->last_period, __entry->cur_period,
  59                 __entry->last_vtime, __entry->vtime,
  60                 __entry->inuse, __entry->weight,
  61                 __entry->hweight_inuse, __entry->hweight_active
  62         )
  63 );
  64
  65 DECLARE_EVENT_CLASS(iocg_inuse_update,
  66
  67         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
  68                 u32 old_inuse, u32 new_inuse,
  69                 u64 old_hw_inuse, u64 new_hw_inuse),
  70
  71         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
  72                 old_hw_inuse, new_hw_inuse),
  73
  74         TP_STRUCT__entry (
  75                 __string(devname, ioc_name(iocg->ioc))
  76                 __string(cgroup, path)
  77                 __field(u64, now)
  78                 __field(u32, old_inuse)
  79                 __field(u32, new_inuse)
  80                 __field(u64, old_hweight_inuse)
  81                 __field(u64, new_hweight_inuse)
  82         ),
  83
  84         TP_fast_assign(
  85                 __assign_str(devname, ioc_name(iocg->ioc));
  86                 __assign_str(cgroup, path);
  87                 __entry->now = now->now;
  88                 __entry->old_inuse = old_inuse;
  89                 __entry->new_inuse = new_inuse;
  90                 __entry->old_hweight_inuse = old_hw_inuse;
  91                 __entry->new_hweight_inuse = new_hw_inuse;
  92         ),
  93
  94         TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu",
  95                 __get_str(devname), __get_str(cgroup), __entry->now,
  96                 __entry->old_inuse, __entry->new_inuse,
  97                 __entry->old_hweight_inuse, __entry->new_hweight_inuse
  98         )
  99 );
 100
 101 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_takeback,
 102
 103         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 104                 u32 old_inuse, u32 new_inuse,
 105                 u64 old_hw_inuse, u64 new_hw_inuse),
 106
 107         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 108                 old_hw_inuse, new_hw_inuse)
 109 );
 110
 111 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_giveaway,
 112
 113         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 114                 u32 old_inuse, u32 new_inuse,
 115                 u64 old_hw_inuse, u64 new_hw_inuse),
 116
 117         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 118                 old_hw_inuse, new_hw_inuse)
 119 );
 120
 121 DEFINE_EVENT(iocg_inuse_update, iocost_inuse_reset,
 122
 123         TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 124                 u32 old_inuse, u32 new_inuse,
 125                 u64 old_hw_inuse, u64 new_hw_inuse),
 126
 127         TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 128                 old_hw_inuse, new_hw_inuse)
 129 );
 130
 131 TRACE_EVENT(iocost_ioc_vrate_adj,
 132
 133         TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 *missed_ppm,
 134                 u32 rq_wait_pct, int nr_lagging, int nr_shortages,
 135                 int nr_surpluses),
 136
 137         TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages,
 138                 nr_surpluses),
 139
 140         TP_STRUCT__entry (
 141                 __string(devname, ioc_name(ioc))
 142                 __field(u64, old_vrate)
 143                 __field(u64, new_vrate)
 144                 __field(int, busy_level)
 145                 __field(u32, read_missed_ppm)
 146                 __field(u32, write_missed_ppm)
 147                 __field(u32, rq_wait_pct)
 148                 __field(int, nr_lagging)
 149                 __field(int, nr_shortages)
 150                 __field(int, nr_surpluses)
 151         ),
 152
 153         TP_fast_assign(
 154                 __assign_str(devname, ioc_name(ioc));
 155                 __entry->old_vrate = atomic64_read(&ioc->vtime_rate);;
 156                 __entry->new_vrate = new_vrate;
 157                 __entry->busy_level = ioc->busy_level;
 158                 __entry->read_missed_ppm = missed_ppm[READ];
 159                 __entry->write_missed_ppm = missed_ppm[WRITE];
 160                 __entry->rq_wait_pct = rq_wait_pct;
 161                 __entry->nr_lagging = nr_lagging;
 162                 __entry->nr_shortages = nr_shortages;
 163                 __entry->nr_surpluses = nr_surpluses;
 164         ),
 165
 166         TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d surpluses=%d",
 167                 __get_str(devname), __entry->old_vrate, __entry->new_vrate,
 168                 __entry->busy_level,
 169                 __entry->read_missed_ppm, __entry->write_missed_ppm,
 170                 __entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages,
 171                 __entry->nr_surpluses
 172         )
 173 );
 174
 175 #endif /* _TRACE_BLK_IOCOST_H */
 176
 177 /* This part must be outside protection */
 178 #include <trace/define_trace.h>