vmscan.h File Reference

#include <linux/types.h>
#include <linux/tracepoint.h>
#include <linux/mm.h>
#include <linux/memcontrol.h>
#include <trace/events/gfpflags.h>
#include <trace/define_trace.h>

Go to the source code of this file.

Macros
#define	TRACE_SYSTEM   vmscan
#define	_TRACE_VMSCAN_H
#define	RECLAIM_WB_ANON   0x0001u
#define	RECLAIM_WB_FILE   0x0002u
#define	RECLAIM_WB_MIXED   0x0010u
#define	RECLAIM_WB_SYNC   0x0004u /* Unused, all reclaim async */
#define	RECLAIM_WB_ASYNC   0x0008u
#define	show_reclaim_flags(flags)
#define	trace_reclaim_flags(page)
#define	trace_shrink_flags(file)

Functions
	TRACE_EVENT (mm_vmscan_kswapd_sleep, TP_PROTO(int nid), TP_ARGS(nid), TP_STRUCT__entry(__field(int, nid)), TP_fast_assign(__entry->nid=nid;), TP_printk("nid=%d", __entry->nid))
	TRACE_EVENT (mm_vmscan_kswapd_wake, TP_PROTO(int nid, int order), TP_ARGS(nid, order), TP_STRUCT__entry(__field(int, nid) __field(int, order)), TP_fast_assign(__entry->nid=nid;__entry->order=order;), TP_printk("nid=%d order=%d", __entry->nid, __entry->order))
	TRACE_EVENT (mm_vmscan_wakeup_kswapd, TP_PROTO(int nid, int zid, int order), TP_ARGS(nid, zid, order), TP_STRUCT__entry(__field(int, nid) __field(int, zid) __field(int, order)), TP_fast_assign(__entry->nid=nid;__entry->zid=zid;__entry->order=order;), TP_printk("nid=%d zid=%d order=%d", __entry->nid, __entry->zid, __entry->order))
	DECLARE_EVENT_CLASS (mm_vmscan_direct_reclaim_begin_template, TP_PROTO(int order, int may_writepage, gfp_t gfp_flags), TP_ARGS(order, may_writepage, gfp_flags), TP_STRUCT__entry(__field(int, order) __field(int, may_writepage) __field(gfp_t, gfp_flags)), TP_fast_assign(__entry->order=order;__entry->may_writepage=may_writepage;__entry->gfp_flags=gfp_flags;), TP_printk("order=%d may_writepage=%d gfp_flags=%s", __entry->order, __entry->may_writepage, show_gfp_flags(__entry->gfp_flags)))
	DEFINE_EVENT (mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin, TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),)
	DEFINE_EVENT (mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin, TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),)
	DEFINE_EVENT (mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin, TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),)
	DECLARE_EVENT_CLASS (mm_vmscan_direct_reclaim_end_template, TP_PROTO(unsigned long nr_reclaimed), TP_ARGS(nr_reclaimed), TP_STRUCT__entry(__field(unsigned long, nr_reclaimed)), TP_fast_assign(__entry->nr_reclaimed=nr_reclaimed;), TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed))
	DEFINE_EVENT (mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end, TP_PROTO(unsigned long nr_reclaimed),)
	DEFINE_EVENT (mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end, TP_PROTO(unsigned long nr_reclaimed),)
	DEFINE_EVENT (mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end, TP_PROTO(unsigned long nr_reclaimed),)
	TRACE_EVENT (mm_shrink_slab_start, TP_PROTO(struct shrinker *shr, struct shrink_control *sc, long nr_objects_to_shrink, unsigned long pgs_scanned, unsigned long lru_pgs, unsigned long cache_items, unsigned long long delta, unsigned long total_scan), TP_ARGS(shr, sc, nr_objects_to_shrink, pgs_scanned, lru_pgs, cache_items, delta, total_scan), TP_STRUCT__entry(__field(struct shrinker *, shr) __field(void *, shrink) __field(long, nr_objects_to_shrink) __field(gfp_t, gfp_flags) __field(unsigned long, pgs_scanned) __field(unsigned long, lru_pgs) __field(unsigned long, cache_items) __field(unsigned long long, delta) __field(unsigned long, total_scan)), TP_fast_assign(__entry->shr=shr;__entry->shrink=shr->shrink;__entry->nr_objects_to_shrink=nr_objects_to_shrink;__entry->gfp_flags=sc->gfp_mask;__entry->pgs_scanned=pgs_scanned;__entry->lru_pgs=lru_pgs;__entry->cache_items=cache_items;__entry->delta=delta;__entry->total_scan=total_scan;), TP_printk("%pF %p: objects to shrink %ld gfp_flags %s pgs_scanned %ld lru_pgs %ld cache items %ld delta %lld total_scan %ld", __entry->shrink, __entry->shr, __entry->nr_objects_to_shrink, show_gfp_flags(__entry->gfp_flags), __entry->pgs_scanned, __entry->lru_pgs, __entry->cache_items, __entry->delta, __entry->total_scan))
	TRACE_EVENT (mm_shrink_slab_end, TP_PROTO(struct shrinker *shr, int shrinker_retval, long unused_scan_cnt, long new_scan_cnt), TP_ARGS(shr, shrinker_retval, unused_scan_cnt, new_scan_cnt), TP_STRUCT__entry(__field(struct shrinker *, shr) __field(void *, shrink) __field(long, unused_scan) __field(long, new_scan) __field(int, retval) __field(long, total_scan)), TP_fast_assign(__entry->shr=shr;__entry->shrink=shr->shrink;__entry->unused_scan=unused_scan_cnt;__entry->new_scan=new_scan_cnt;__entry->retval=shrinker_retval;__entry->total_scan=new_scan_cnt-unused_scan_cnt;), TP_printk("%pF %p: unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d", __entry->shrink, __entry->shr, __entry->unused_scan, __entry->new_scan, __entry->total_scan, __entry->retval))
	DECLARE_EVENT_CLASS (mm_vmscan_lru_isolate_template, TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file), TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file), TP_STRUCT__entry(__field(int, order) __field(unsigned long, nr_requested) __field(unsigned long, nr_scanned) __field(unsigned long, nr_taken) __field(isolate_mode_t, isolate_mode) __field(int, file)), TP_fast_assign(__entry->order=order;__entry->nr_requested=nr_requested;__entry->nr_scanned=nr_scanned;__entry->nr_taken=nr_taken;__entry->isolate_mode=isolate_mode;__entry->file=file;), TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d", __entry->isolate_mode, __entry->order, __entry->nr_requested, __entry->nr_scanned, __entry->nr_taken, __entry->file))
	DEFINE_EVENT (mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate, TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file),)
	DEFINE_EVENT (mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate, TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file),)
	TRACE_EVENT (mm_vmscan_writepage, TP_PROTO(struct page *page, int reclaim_flags), TP_ARGS(page, reclaim_flags), TP_STRUCT__entry(__field(struct page *, page) __field(int, reclaim_flags)), TP_fast_assign(__entry->page=page;__entry->reclaim_flags=reclaim_flags;), TP_printk("page=%p pfn=%lu flags=%s", __entry->page, page_to_pfn(__entry->page), show_reclaim_flags(__entry->reclaim_flags)))
	TRACE_EVENT (mm_vmscan_lru_shrink_inactive, TP_PROTO(int nid, int zid, unsigned long nr_scanned, unsigned long nr_reclaimed, int priority, int reclaim_flags), TP_ARGS(nid, zid, nr_scanned, nr_reclaimed, priority, reclaim_flags), TP_STRUCT__entry(__field(int, nid) __field(int, zid) __field(unsigned long, nr_scanned) __field(unsigned long, nr_reclaimed) __field(int, priority) __field(int, reclaim_flags)), TP_fast_assign(__entry->nid=nid;__entry->zid=zid;__entry->nr_scanned=nr_scanned;__entry->nr_reclaimed=nr_reclaimed;__entry->priority=priority;__entry->reclaim_flags=reclaim_flags;), TP_printk("nid=%d zid=%d nr_scanned=%ld nr_reclaimed=%ld priority=%d flags=%s", __entry->nid, __entry->zid, __entry->nr_scanned, __entry->nr_reclaimed, __entry->priority, show_reclaim_flags(__entry->reclaim_flags)))

Macro Definition Documentation

#define _TRACE_VMSCAN_H

Definition at line 5 of file vmscan.h.

#define RECLAIM_WB_ANON   0x0001u

Definition at line 13 of file vmscan.h.

#define RECLAIM_WB_ASYNC   0x0008u

Definition at line 17 of file vmscan.h.

#define RECLAIM_WB_FILE   0x0002u

Definition at line 14 of file vmscan.h.

#define RECLAIM_WB_MIXED   0x0010u

Definition at line 15 of file vmscan.h.

#define RECLAIM_WB_SYNC   0x0004u /* Unused, all reclaim async */

Definition at line 16 of file vmscan.h.

#define show_reclaim_flags

(

flags

)

Value:

(flags) ? __print_flags(flags, "|",         \
        {RECLAIM_WB_ANON,   "RECLAIM_WB_ANON"}, \
        {RECLAIM_WB_FILE,   "RECLAIM_WB_FILE"}, \
        {RECLAIM_WB_MIXED,  "RECLAIM_WB_MIXED"},    \
        {RECLAIM_WB_SYNC,   "RECLAIM_WB_SYNC"}, \
        {RECLAIM_WB_ASYNC,  "RECLAIM_WB_ASYNC"} \
        ) : "RECLAIM_WB_NONE"

Definition at line 19 of file vmscan.h.

#define trace_reclaim_flags

(

page

)

Value:

( \
    (page_is_file_cache(page) ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
    (RECLAIM_WB_ASYNC) \
    )

Definition at line 28 of file vmscan.h.

#define trace_shrink_flags

(

file

)

Value:

( \
        (file ? RECLAIM_WB_FILE : RECLAIM_WB_ANON) | \
        (RECLAIM_WB_ASYNC) \
    )

Definition at line 33 of file vmscan.h.

#define TRACE_SYSTEM   vmscan

Definition at line 2 of file vmscan.h.

Function Documentation

DECLARE_EVENT_CLASS	(	mm_vmscan_direct_reclaim_begin_template	,
		TP_PROTO(int order, int may_writepage, gfp_t gfp_flags)	,
		TP_ARGS(order, may_writepage, gfp_flags)	,
		TP_STRUCT__entry(__field(int, order) __field(int, may_writepage) __field(gfp_t, gfp_flags))	,
		TP_fast_assign(__entry->order=order;__entry->may_writepage=may_writepage;__entry->gfp_flags=gfp_flags;)	,
		TP_printk("order=%d may_writepage=%d gfp_flags=%s", __entry->order, __entry->may_writepage, show_gfp_flags(__entry->gfp_flags))
	)

DECLARE_EVENT_CLASS	(	mm_vmscan_direct_reclaim_end_template	,
		TP_PROTO(unsigned long nr_reclaimed)	,
		TP_ARGS(nr_reclaimed)	,
		TP_STRUCT__entry(__field(unsigned long, nr_reclaimed))	,
		TP_fast_assign(__entry->nr_reclaimed=nr_reclaimed;)	,
		TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed)
	)

DECLARE_EVENT_CLASS	(	mm_vmscan_lru_isolate_template	,
		TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file)	,
		TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)	,
		TP_STRUCT__entry(__field(int, order) __field(unsigned long, nr_requested) __field(unsigned long, nr_scanned) __field(unsigned long, nr_taken) __field(isolate_mode_t, isolate_mode) __field(int, file))	,
		TP_fast_assign(__entry->order=order;__entry->nr_requested=nr_requested;__entry->nr_scanned=nr_scanned;__entry->nr_taken=nr_taken;__entry->isolate_mode=isolate_mode;__entry->file=file;)	,
		TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d", __entry->isolate_mode, __entry->order, __entry->nr_requested, __entry->nr_scanned, __entry->nr_taken, __entry->file)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_begin_template	,
		mm_vmscan_direct_reclaim_begin	,
		TP_PROTO(int order, int may_writepage, gfp_t gfp_flags)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_begin_template	,
		mm_vmscan_memcg_reclaim_begin	,
		TP_PROTO(int order, int may_writepage, gfp_t gfp_flags)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_begin_template	,
		mm_vmscan_memcg_softlimit_reclaim_begin	,
		TP_PROTO(int order, int may_writepage, gfp_t gfp_flags)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_end_template	,
		mm_vmscan_direct_reclaim_end	,
		TP_PROTO(unsigned long nr_reclaimed)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_end_template	,
		mm_vmscan_memcg_reclaim_end	,
		TP_PROTO(unsigned long nr_reclaimed)
	)

DEFINE_EVENT	(	mm_vmscan_direct_reclaim_end_template	,
		mm_vmscan_memcg_softlimit_reclaim_end	,
		TP_PROTO(unsigned long nr_reclaimed)
	)

DEFINE_EVENT	(	mm_vmscan_lru_isolate_template	,
		mm_vmscan_lru_isolate	,
		TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file)
	)

DEFINE_EVENT	(	mm_vmscan_lru_isolate_template	,
		mm_vmscan_memcg_isolate	,
		TP_PROTO(int order, unsigned long nr_requested, unsigned long nr_scanned, unsigned long nr_taken, isolate_mode_t isolate_mode, int file)
	)

TRACE_EVENT	(	mm_vmscan_kswapd_sleep	,
		TP_PROTO(int nid)	,
		TP_ARGS(nid)	,
		TP_STRUCT__entry(__field(int, nid))	,
		TP_fast_assign(__entry->nid=nid;)	,
		TP_printk("nid=%d", __entry->nid)
	)

TRACE_EVENT	(	mm_vmscan_kswapd_wake	,
		TP_PROTO(int nid, int order)	,
		TP_ARGS(nid, order)	,
		TP_STRUCT__entry(__field(int, nid) __field(int, order))	,
		TP_fast_assign(__entry->nid=nid;__entry->order=order;)	,
		TP_printk("nid=%d order=%d", __entry->nid, __entry->order)
	)

TRACE_EVENT	(	mm_vmscan_wakeup_kswapd	,
		TP_PROTO(int nid, int zid, int order)	,
		TP_ARGS(nid, zid, order)	,
		TP_STRUCT__entry(__field(int, nid) __field(int, zid) __field(int, order))	,
		TP_fast_assign(__entry->nid=nid;__entry->zid=zid;__entry->order=order;)	,
		TP_printk("nid=%d zid=%d order=%d", __entry->nid, __entry->zid, __entry->order)
	)

TRACE_EVENT	(	mm_shrink_slab_start	,
		TP_PROTO(struct shrinker *shr, struct shrink_control *sc, long nr_objects_to_shrink, unsigned long pgs_scanned, unsigned long lru_pgs, unsigned long cache_items, unsigned long long delta, unsigned long total_scan)	,
		TP_ARGS(shr, sc, nr_objects_to_shrink, pgs_scanned, lru_pgs, cache_items, delta, total_scan)	,
		TP_STRUCT__entry(__field(struct shrinker *, shr) __field(void *, shrink) __field(long, nr_objects_to_shrink) __field(gfp_t, gfp_flags) __field(unsigned long, pgs_scanned) __field(unsigned long, lru_pgs) __field(unsigned long, cache_items) __field(unsigned long long, delta) __field(unsigned long, total_scan))	,
		TP_fast_assign(__entry->shr=shr;__entry->shrink=shr->shrink;__entry->nr_objects_to_shrink=nr_objects_to_shrink;__entry->gfp_flags=sc->gfp_mask;__entry->pgs_scanned=pgs_scanned;__entry->lru_pgs=lru_pgs;__entry->cache_items=cache_items;__entry->delta=delta;__entry->total_scan=total_scan;)	,
		TP_printk("%pF %p: objects to shrink %ld gfp_flags %s pgs_scanned %ld lru_pgs %ld cache items %ld delta %lld total_scan %ld", __entry->shrink, __entry->shr, __entry->nr_objects_to_shrink, show_gfp_flags(__entry->gfp_flags), __entry->pgs_scanned, __entry->lru_pgs, __entry->cache_items, __entry->delta, __entry->total_scan)
	)

TRACE_EVENT	(	mm_shrink_slab_end	,
		TP_PROTO(struct shrinker *shr, int shrinker_retval, long unused_scan_cnt, long new_scan_cnt)	,
		TP_ARGS(shr, shrinker_retval, unused_scan_cnt, new_scan_cnt)	,
		TP_STRUCT__entry(__field(struct shrinker *, shr) __field(void *, shrink) __field(long, unused_scan) __field(long, new_scan) __field(int, retval) __field(long, total_scan))	,
		TP_fast_assign(__entry->shr=shr;__entry->shrink=shr->shrink;__entry->unused_scan=unused_scan_cnt;__entry->new_scan=new_scan_cnt;__entry->retval=shrinker_retval;__entry->total_scan=new_scan_cnt-unused_scan_cnt;)	,
		TP_printk("%pF %p: unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d", __entry->shrink, __entry->shr, __entry->unused_scan, __entry->new_scan, __entry->total_scan, __entry->retval)
	)

TRACE_EVENT	(	mm_vmscan_writepage	,
		TP_PROTO(struct page *page, int reclaim_flags)	,
		TP_ARGS(page, reclaim_flags)	,
		TP_STRUCT__entry(__field(struct page *, page) __field(int, reclaim_flags))	,
		TP_fast_assign(__entry->page=page;__entry->reclaim_flags=reclaim_flags;)	,
		TP_printk("page=%p pfn=%lu flags=%s", __entry->page, page_to_pfn(__entry->page), show_reclaim_flags(__entry->reclaim_flags))
	)

TRACE_EVENT	(	mm_vmscan_lru_shrink_inactive	,
		TP_PROTO(int nid, int zid, unsigned long nr_scanned, unsigned long nr_reclaimed, int priority, int reclaim_flags)	,
		TP_ARGS(nid, zid, nr_scanned, nr_reclaimed, priority, reclaim_flags)	,
		TP_STRUCT__entry(__field(int, nid) __field(int, zid) __field(unsigned long, nr_scanned) __field(unsigned long, nr_reclaimed) __field(int, priority) __field(int, reclaim_flags))	,
		TP_fast_assign(__entry->nid=nid;__entry->zid=zid;__entry->nr_scanned=nr_scanned;__entry->nr_reclaimed=nr_reclaimed;__entry->priority=priority;__entry->reclaim_flags=reclaim_flags;)	,
		TP_printk("nid=%d zid=%d nr_scanned=%ld nr_reclaimed=%ld priority=%d flags=%s", __entry->nid, __entry->zid, __entry->nr_scanned, __entry->nr_reclaimed, __entry->priority, show_reclaim_flags(__entry->reclaim_flags))
	)