events/vmscan.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM vmscan
   4
   5 #if !defined(_TRACE_VMSCAN_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_VMSCAN_H
   7
   8 #include <linux/types.h>
   9 #include <linux/tracepoint.h>
  10 #include <linux/mm.h>
  11 #include <linux/memcontrol.h>
  12 #include <trace/events/mmflags.h>
  13
  14 #define RECLAIM_WB_ANON         0x0001u
  15 #define RECLAIM_WB_FILE         0x0002u
  16 #define RECLAIM_WB_MIXED        0x0010u
  17 #define RECLAIM_WB_SYNC         0x0004u /* Unused, all reclaim async */
  18 #define RECLAIM_WB_ASYNC        0x0008u
  19 #define RECLAIM_WB_LRU          (RECLAIM_WB_ANON|RECLAIM_WB_FILE)
  20
  21 #define show_reclaim_flags(flags)                               \
  22         (flags) ? __print_flags(flags, "|",                     \
  23                 {RECLAIM_WB_ANON,       "RECLAIM_WB_ANON"},     \
  24                 {RECLAIM_WB_FILE,       "RECLAIM_WB_FILE"},     \
  25                 {RECLAIM_WB_MIXED,      "RECLAIM_WB_MIXED"},    \
  26                 {RECLAIM_WB_SYNC,       "RECLAIM_WB_SYNC"},     \
  27                 {RECLAIM_WB_ASYNC,      "RECLAIM_WB_ASYNC"}     \
  28                 ) : "RECLAIM_WB_NONE"
  29
  30 #define _VMSCAN_THROTTLE_WRITEBACK      (1 << VMSCAN_THROTTLE_WRITEBACK)
  31 #define _VMSCAN_THROTTLE_ISOLATED       (1 << VMSCAN_THROTTLE_ISOLATED)
  32 #define _VMSCAN_THROTTLE_NOPROGRESS     (1 << VMSCAN_THROTTLE_NOPROGRESS)
  33 #define _VMSCAN_THROTTLE_CONGESTED      (1 << VMSCAN_THROTTLE_CONGESTED)
  34
  35 #define show_throttle_flags(flags)                                              \
  36         (flags) ? __print_flags(flags, "|",                                     \
  37                 {_VMSCAN_THROTTLE_WRITEBACK,    "VMSCAN_THROTTLE_WRITEBACK"},   \
  38                 {_VMSCAN_THROTTLE_ISOLATED,     "VMSCAN_THROTTLE_ISOLATED"},    \
  39                 {_VMSCAN_THROTTLE_NOPROGRESS,   "VMSCAN_THROTTLE_NOPROGRESS"},  \
  40                 {_VMSCAN_THROTTLE_CONGESTED,    "VMSCAN_THROTTLE_CONGESTED"}    \
  41                 ) : "VMSCAN_THROTTLE_NONE"
  42
  43
  44 #define trace_reclaim_flags(file) ( \
  45         (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
  46         (RECLAIM_WB_ASYNC) \
  47         )
  48
  49 TRACE_EVENT(mm_vmscan_kswapd_sleep,
  50
  51         TP_PROTO(int nid),
  52
  53         TP_ARGS(nid),
  54
  55         TP_STRUCT__entry(
  56                 __field(        int,    nid     )
  57         ),
  58
  59         TP_fast_assign(
  60                 __entry->nid    = nid;
  61         ),
  62
  63         TP_printk("nid=%d", __entry->nid)
  64 );
  65
  66 TRACE_EVENT(mm_vmscan_kswapd_wake,
  67
  68         TP_PROTO(int nid, int zid, int order),
  69
  70         TP_ARGS(nid, zid, order),
  71
  72         TP_STRUCT__entry(
  73                 __field(        int,    nid     )
  74                 __field(        int,    zid     )
  75                 __field(        int,    order   )
  76         ),
  77
  78         TP_fast_assign(
  79                 __entry->nid    = nid;
  80                 __entry->zid    = zid;
  81                 __entry->order  = order;
  82         ),
  83
  84         TP_printk("nid=%d order=%d",
  85                 __entry->nid,
  86                 __entry->order)
  87 );
  88
  89 TRACE_EVENT(mm_vmscan_wakeup_kswapd,
  90
  91         TP_PROTO(int nid, int zid, int order, gfp_t gfp_flags),
  92
  93         TP_ARGS(nid, zid, order, gfp_flags),
  94
  95         TP_STRUCT__entry(
  96                 __field(        int,    nid             )
  97                 __field(        int,    zid             )
  98                 __field(        int,    order           )
  99                 __field(        unsigned long,  gfp_flags       )
 100         ),
 101
 102         TP_fast_assign(
 103                 __entry->nid            = nid;
 104                 __entry->zid            = zid;
 105                 __entry->order          = order;
 106                 __entry->gfp_flags      = (__force unsigned long)gfp_flags;
 107         ),
 108
 109         TP_printk("nid=%d order=%d gfp_flags=%s",
 110                 __entry->nid,
 111                 __entry->order,
 112                 show_gfp_flags(__entry->gfp_flags))
 113 );
 114
 115 DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template,
 116
 117         TP_PROTO(int order, gfp_t gfp_flags),
 118
 119         TP_ARGS(order, gfp_flags),
 120
 121         TP_STRUCT__entry(
 122                 __field(        int,    order           )
 123                 __field(        unsigned long,  gfp_flags       )
 124         ),
 125
 126         TP_fast_assign(
 127                 __entry->order          = order;
 128                 __entry->gfp_flags      = (__force unsigned long)gfp_flags;
 129         ),
 130
 131         TP_printk("order=%d gfp_flags=%s",
 132                 __entry->order,
 133                 show_gfp_flags(__entry->gfp_flags))
 134 );
 135
 136 DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin,
 137
 138         TP_PROTO(int order, gfp_t gfp_flags),
 139
 140         TP_ARGS(order, gfp_flags)
 141 );
 142
 143 #ifdef CONFIG_MEMCG
 144 DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin,
 145
 146         TP_PROTO(int order, gfp_t gfp_flags),
 147
 148         TP_ARGS(order, gfp_flags)
 149 );
 150
 151 DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin,
 152
 153         TP_PROTO(int order, gfp_t gfp_flags),
 154
 155         TP_ARGS(order, gfp_flags)
 156 );
 157 #endif /* CONFIG_MEMCG */
 158
 159 DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
 160
 161         TP_PROTO(unsigned long nr_reclaimed),
 162
 163         TP_ARGS(nr_reclaimed),
 164
 165         TP_STRUCT__entry(
 166                 __field(        unsigned long,  nr_reclaimed    )
 167         ),
 168
 169         TP_fast_assign(
 170                 __entry->nr_reclaimed   = nr_reclaimed;
 171         ),
 172
 173         TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed)
 174 );
 175
 176 DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end,
 177
 178         TP_PROTO(unsigned long nr_reclaimed),
 179
 180         TP_ARGS(nr_reclaimed)
 181 );
 182
 183 #ifdef CONFIG_MEMCG
 184 DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end,
 185
 186         TP_PROTO(unsigned long nr_reclaimed),
 187
 188         TP_ARGS(nr_reclaimed)
 189 );
 190
 191 DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end,
 192
 193         TP_PROTO(unsigned long nr_reclaimed),
 194
 195         TP_ARGS(nr_reclaimed)
 196 );
 197 #endif /* CONFIG_MEMCG */
 198
 199 TRACE_EVENT(mm_shrink_slab_start,
 200         TP_PROTO(struct shrinker *shr, struct shrink_control *sc,
 201                 long nr_objects_to_shrink, unsigned long cache_items,
 202                 unsigned long long delta, unsigned long total_scan,
 203                 int priority),
 204
 205         TP_ARGS(shr, sc, nr_objects_to_shrink, cache_items, delta, total_scan,
 206                 priority),
 207
 208         TP_STRUCT__entry(
 209                 __field(struct shrinker *, shr)
 210                 __field(void *, shrink)
 211                 __field(int, nid)
 212                 __field(long, nr_objects_to_shrink)
 213                 __field(unsigned long, gfp_flags)
 214                 __field(unsigned long, cache_items)
 215                 __field(unsigned long long, delta)
 216                 __field(unsigned long, total_scan)
 217                 __field(int, priority)
 218         ),
 219
 220         TP_fast_assign(
 221                 __entry->shr = shr;
 222                 __entry->shrink = shr->scan_objects;
 223                 __entry->nid = sc->nid;
 224                 __entry->nr_objects_to_shrink = nr_objects_to_shrink;
 225                 __entry->gfp_flags = (__force unsigned long)sc->gfp_mask;
 226                 __entry->cache_items = cache_items;
 227                 __entry->delta = delta;
 228                 __entry->total_scan = total_scan;
 229                 __entry->priority = priority;
 230         ),
 231
 232         TP_printk("%pS %p: nid: %d objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d",
 233                 __entry->shrink,
 234                 __entry->shr,
 235                 __entry->nid,
 236                 __entry->nr_objects_to_shrink,
 237                 show_gfp_flags(__entry->gfp_flags),
 238                 __entry->cache_items,
 239                 __entry->delta,
 240                 __entry->total_scan,
 241                 __entry->priority)
 242 );
 243
 244 TRACE_EVENT(mm_shrink_slab_end,
 245         TP_PROTO(struct shrinker *shr, int nid, int shrinker_retval,
 246                 long unused_scan_cnt, long new_scan_cnt, long total_scan),
 247
 248         TP_ARGS(shr, nid, shrinker_retval, unused_scan_cnt, new_scan_cnt,
 249                 total_scan),
 250
 251         TP_STRUCT__entry(
 252                 __field(struct shrinker *, shr)
 253                 __field(int, nid)
 254                 __field(void *, shrink)
 255                 __field(long, unused_scan)
 256                 __field(long, new_scan)
 257                 __field(int, retval)
 258                 __field(long, total_scan)
 259         ),
 260
 261         TP_fast_assign(
 262                 __entry->shr = shr;
 263                 __entry->nid = nid;
 264                 __entry->shrink = shr->scan_objects;
 265                 __entry->unused_scan = unused_scan_cnt;
 266                 __entry->new_scan = new_scan_cnt;
 267                 __entry->retval = shrinker_retval;
 268                 __entry->total_scan = total_scan;
 269         ),
 270
 271         TP_printk("%pS %p: nid: %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d",
 272                 __entry->shrink,
 273                 __entry->shr,
 274                 __entry->nid,
 275                 __entry->unused_scan,
 276                 __entry->new_scan,
 277                 __entry->total_scan,
 278                 __entry->retval)
 279 );
 280
 281 TRACE_EVENT(mm_vmscan_lru_isolate,
 282         TP_PROTO(int highest_zoneidx,
 283                 int order,
 284                 unsigned long nr_requested,
 285                 unsigned long nr_scanned,
 286                 unsigned long nr_skipped,
 287                 unsigned long nr_taken,
 288                 int lru),
 289
 290         TP_ARGS(highest_zoneidx, order, nr_requested, nr_scanned, nr_skipped, nr_taken, lru),
 291
 292         TP_STRUCT__entry(
 293                 __field(int, highest_zoneidx)
 294                 __field(int, order)
 295                 __field(unsigned long, nr_requested)
 296                 __field(unsigned long, nr_scanned)
 297                 __field(unsigned long, nr_skipped)
 298                 __field(unsigned long, nr_taken)
 299                 __field(int, lru)
 300         ),
 301
 302         TP_fast_assign(
 303                 __entry->highest_zoneidx = highest_zoneidx;
 304                 __entry->order = order;
 305                 __entry->nr_requested = nr_requested;
 306                 __entry->nr_scanned = nr_scanned;
 307                 __entry->nr_skipped = nr_skipped;
 308                 __entry->nr_taken = nr_taken;
 309                 __entry->lru = lru;
 310         ),
 311
 312         /*
 313          * classzone is previous name of the highest_zoneidx.
 314          * Reason not to change it is the ABI requirement of the tracepoint.
 315          */
 316         TP_printk("classzone=%d order=%d nr_requested=%lu nr_scanned=%lu nr_skipped=%lu nr_taken=%lu lru=%s",
 317                 __entry->highest_zoneidx,
 318                 __entry->order,
 319                 __entry->nr_requested,
 320                 __entry->nr_scanned,
 321                 __entry->nr_skipped,
 322                 __entry->nr_taken,
 323                 __print_symbolic(__entry->lru, LRU_NAMES))
 324 );
 325
 326 TRACE_EVENT(mm_vmscan_write_folio,
 327
 328         TP_PROTO(struct folio *folio),
 329
 330         TP_ARGS(folio),
 331
 332         TP_STRUCT__entry(
 333                 __field(unsigned long, pfn)
 334                 __field(int, reclaim_flags)
 335         ),
 336
 337         TP_fast_assign(
 338                 __entry->pfn = folio_pfn(folio);
 339                 __entry->reclaim_flags = trace_reclaim_flags(
 340                                                 folio_is_file_lru(folio));
 341         ),
 342
 343         TP_printk("page=%p pfn=0x%lx flags=%s",
 344                 pfn_to_page(__entry->pfn),
 345                 __entry->pfn,
 346                 show_reclaim_flags(__entry->reclaim_flags))
 347 );
 348
 349 TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
 350
 351         TP_PROTO(int nid,
 352                 unsigned long nr_scanned, unsigned long nr_reclaimed,
 353                 struct reclaim_stat *stat, int priority, int file),
 354
 355         TP_ARGS(nid, nr_scanned, nr_reclaimed, stat, priority, file),
 356
 357         TP_STRUCT__entry(
 358                 __field(int, nid)
 359                 __field(unsigned long, nr_scanned)
 360                 __field(unsigned long, nr_reclaimed)
 361                 __field(unsigned long, nr_dirty)
 362                 __field(unsigned long, nr_writeback)
 363                 __field(unsigned long, nr_congested)
 364                 __field(unsigned long, nr_immediate)
 365                 __field(unsigned int, nr_activate0)
 366                 __field(unsigned int, nr_activate1)
 367                 __field(unsigned long, nr_ref_keep)
 368                 __field(unsigned long, nr_unmap_fail)
 369                 __field(int, priority)
 370                 __field(int, reclaim_flags)
 371         ),
 372
 373         TP_fast_assign(
 374                 __entry->nid = nid;
 375                 __entry->nr_scanned = nr_scanned;
 376                 __entry->nr_reclaimed = nr_reclaimed;
 377                 __entry->nr_dirty = stat->nr_dirty;
 378                 __entry->nr_writeback = stat->nr_writeback;
 379                 __entry->nr_congested = stat->nr_congested;
 380                 __entry->nr_immediate = stat->nr_immediate;
 381                 __entry->nr_activate0 = stat->nr_activate[0];
 382                 __entry->nr_activate1 = stat->nr_activate[1];
 383                 __entry->nr_ref_keep = stat->nr_ref_keep;
 384                 __entry->nr_unmap_fail = stat->nr_unmap_fail;
 385                 __entry->priority = priority;
 386                 __entry->reclaim_flags = trace_reclaim_flags(file);
 387         ),
 388
 389         TP_printk("nid=%d nr_scanned=%ld nr_reclaimed=%ld nr_dirty=%ld nr_writeback=%ld nr_congested=%ld nr_immediate=%ld nr_activate_anon=%d nr_activate_file=%d nr_ref_keep=%ld nr_unmap_fail=%ld priority=%d flags=%s",
 390                 __entry->nid,
 391                 __entry->nr_scanned, __entry->nr_reclaimed,
 392                 __entry->nr_dirty, __entry->nr_writeback,
 393                 __entry->nr_congested, __entry->nr_immediate,
 394                 __entry->nr_activate0, __entry->nr_activate1,
 395                 __entry->nr_ref_keep, __entry->nr_unmap_fail,
 396                 __entry->priority,
 397                 show_reclaim_flags(__entry->reclaim_flags))
 398 );
 399
 400 TRACE_EVENT(mm_vmscan_lru_shrink_active,
 401
 402         TP_PROTO(int nid, unsigned long nr_taken,
 403                 unsigned long nr_active, unsigned long nr_deactivated,
 404                 unsigned long nr_referenced, int priority, int file),
 405
 406         TP_ARGS(nid, nr_taken, nr_active, nr_deactivated, nr_referenced, priority, file),
 407
 408         TP_STRUCT__entry(
 409                 __field(int, nid)
 410                 __field(unsigned long, nr_taken)
 411                 __field(unsigned long, nr_active)
 412                 __field(unsigned long, nr_deactivated)
 413                 __field(unsigned long, nr_referenced)
 414                 __field(int, priority)
 415                 __field(int, reclaim_flags)
 416         ),
 417
 418         TP_fast_assign(
 419                 __entry->nid = nid;
 420                 __entry->nr_taken = nr_taken;
 421                 __entry->nr_active = nr_active;
 422                 __entry->nr_deactivated = nr_deactivated;
 423                 __entry->nr_referenced = nr_referenced;
 424                 __entry->priority = priority;
 425                 __entry->reclaim_flags = trace_reclaim_flags(file);
 426         ),
 427
 428         TP_printk("nid=%d nr_taken=%ld nr_active=%ld nr_deactivated=%ld nr_referenced=%ld priority=%d flags=%s",
 429                 __entry->nid,
 430                 __entry->nr_taken,
 431                 __entry->nr_active, __entry->nr_deactivated, __entry->nr_referenced,
 432                 __entry->priority,
 433                 show_reclaim_flags(__entry->reclaim_flags))
 434 );
 435
 436 TRACE_EVENT(mm_vmscan_node_reclaim_begin,
 437
 438         TP_PROTO(int nid, int order, gfp_t gfp_flags),
 439
 440         TP_ARGS(nid, order, gfp_flags),
 441
 442         TP_STRUCT__entry(
 443                 __field(int, nid)
 444                 __field(int, order)
 445                 __field(unsigned long, gfp_flags)
 446         ),
 447
 448         TP_fast_assign(
 449                 __entry->nid = nid;
 450                 __entry->order = order;
 451                 __entry->gfp_flags = (__force unsigned long)gfp_flags;
 452         ),
 453
 454         TP_printk("nid=%d order=%d gfp_flags=%s",
 455                 __entry->nid,
 456                 __entry->order,
 457                 show_gfp_flags(__entry->gfp_flags))
 458 );
 459
 460 DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_node_reclaim_end,
 461
 462         TP_PROTO(unsigned long nr_reclaimed),
 463
 464         TP_ARGS(nr_reclaimed)
 465 );
 466
 467 TRACE_EVENT(mm_vmscan_throttled,
 468
 469         TP_PROTO(int nid, int usec_timeout, int usec_delayed, int reason),
 470
 471         TP_ARGS(nid, usec_timeout, usec_delayed, reason),
 472
 473         TP_STRUCT__entry(
 474                 __field(int, nid)
 475                 __field(int, usec_timeout)
 476                 __field(int, usec_delayed)
 477                 __field(int, reason)
 478         ),
 479
 480         TP_fast_assign(
 481                 __entry->nid = nid;
 482                 __entry->usec_timeout = usec_timeout;
 483                 __entry->usec_delayed = usec_delayed;
 484                 __entry->reason = 1U << reason;
 485         ),
 486
 487         TP_printk("nid=%d usec_timeout=%d usect_delayed=%d reason=%s",
 488                 __entry->nid,
 489                 __entry->usec_timeout,
 490                 __entry->usec_delayed,
 491                 show_throttle_flags(__entry->reason))
 492 );
 493 #endif /* _TRACE_VMSCAN_H */
 494
 495 /* This part must be outside protection */
 496 #include <trace/define_trace.h>