mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 01:05:18 +07:00
a5508cd83f
In the context of direct compaction, for some types of allocations we would like the compaction to either succeed or definitely fail while trying as hard as possible. Current async/sync_light migration mode is insufficient, as there are heuristics such as caching scanner positions, marking pageblocks as unsuitable or deferring compaction for a zone. At least the final compaction attempt should be able to override these heuristics. To communicate how hard compaction should try, we replace migration mode with a new enum compact_priority and change the relevant function signatures. In compact_zone_order() where struct compact_control is constructed, the priority is mapped to suitable control flags. This patch itself has no functional change, as the current priority levels are mapped back to the same migration modes as before. Expanding them will be done next. Note that !CONFIG_COMPACTION variant of try_to_compact_pages() is removed, as the only caller exists under CONFIG_COMPACTION. Link: http://lkml.kernel.org/r/20160721073614.24395-8-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
413 lines
9.0 KiB
C
413 lines
9.0 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM compaction
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#if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_COMPACTION_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/tracepoint.h>
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#include <trace/events/mmflags.h>
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#define COMPACTION_STATUS \
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EM( COMPACT_SKIPPED, "skipped") \
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EM( COMPACT_DEFERRED, "deferred") \
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EM( COMPACT_CONTINUE, "continue") \
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EM( COMPACT_PARTIAL, "partial") \
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EM( COMPACT_PARTIAL_SKIPPED, "partial_skipped") \
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EM( COMPACT_COMPLETE, "complete") \
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EM( COMPACT_NO_SUITABLE_PAGE, "no_suitable_page") \
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EM( COMPACT_NOT_SUITABLE_ZONE, "not_suitable_zone") \
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EMe(COMPACT_CONTENDED, "contended")
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#ifdef CONFIG_ZONE_DMA
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#define IFDEF_ZONE_DMA(X) X
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#else
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#define IFDEF_ZONE_DMA(X)
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#endif
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#ifdef CONFIG_ZONE_DMA32
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#define IFDEF_ZONE_DMA32(X) X
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#else
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#define IFDEF_ZONE_DMA32(X)
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#endif
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#ifdef CONFIG_HIGHMEM
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#define IFDEF_ZONE_HIGHMEM(X) X
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#else
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#define IFDEF_ZONE_HIGHMEM(X)
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#endif
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#define ZONE_TYPE \
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IFDEF_ZONE_DMA( EM (ZONE_DMA, "DMA")) \
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IFDEF_ZONE_DMA32( EM (ZONE_DMA32, "DMA32")) \
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EM (ZONE_NORMAL, "Normal") \
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IFDEF_ZONE_HIGHMEM( EM (ZONE_HIGHMEM,"HighMem")) \
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EMe(ZONE_MOVABLE,"Movable")
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/*
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* First define the enums in the above macros to be exported to userspace
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* via TRACE_DEFINE_ENUM().
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) TRACE_DEFINE_ENUM(a);
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#define EMe(a, b) TRACE_DEFINE_ENUM(a);
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COMPACTION_STATUS
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ZONE_TYPE
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) {a, b},
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#define EMe(a, b) {a, b}
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DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken),
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TP_STRUCT__entry(
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__field(unsigned long, start_pfn)
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__field(unsigned long, end_pfn)
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__field(unsigned long, nr_scanned)
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__field(unsigned long, nr_taken)
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),
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TP_fast_assign(
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__entry->start_pfn = start_pfn;
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__entry->end_pfn = end_pfn;
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__entry->nr_scanned = nr_scanned;
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__entry->nr_taken = nr_taken;
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),
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TP_printk("range=(0x%lx ~ 0x%lx) nr_scanned=%lu nr_taken=%lu",
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__entry->start_pfn,
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__entry->end_pfn,
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__entry->nr_scanned,
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__entry->nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
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TP_PROTO(
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unsigned long start_pfn,
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unsigned long end_pfn,
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unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
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);
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TRACE_EVENT(mm_compaction_migratepages,
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TP_PROTO(unsigned long nr_all,
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int migrate_rc,
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struct list_head *migratepages),
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TP_ARGS(nr_all, migrate_rc, migratepages),
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TP_STRUCT__entry(
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__field(unsigned long, nr_migrated)
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__field(unsigned long, nr_failed)
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),
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TP_fast_assign(
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unsigned long nr_failed = 0;
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struct list_head *page_lru;
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/*
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* migrate_pages() returns either a non-negative number
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* with the number of pages that failed migration, or an
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* error code, in which case we need to count the remaining
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* pages manually
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*/
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if (migrate_rc >= 0)
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nr_failed = migrate_rc;
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else
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list_for_each(page_lru, migratepages)
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nr_failed++;
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__entry->nr_migrated = nr_all - nr_failed;
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__entry->nr_failed = nr_failed;
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),
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TP_printk("nr_migrated=%lu nr_failed=%lu",
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__entry->nr_migrated,
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__entry->nr_failed)
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);
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TRACE_EVENT(mm_compaction_begin,
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TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn,
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unsigned long free_pfn, unsigned long zone_end, bool sync),
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TP_ARGS(zone_start, migrate_pfn, free_pfn, zone_end, sync),
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TP_STRUCT__entry(
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__field(unsigned long, zone_start)
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__field(unsigned long, migrate_pfn)
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__field(unsigned long, free_pfn)
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__field(unsigned long, zone_end)
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__field(bool, sync)
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),
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TP_fast_assign(
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__entry->zone_start = zone_start;
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__entry->migrate_pfn = migrate_pfn;
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__entry->free_pfn = free_pfn;
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__entry->zone_end = zone_end;
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__entry->sync = sync;
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),
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TP_printk("zone_start=0x%lx migrate_pfn=0x%lx free_pfn=0x%lx zone_end=0x%lx, mode=%s",
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__entry->zone_start,
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__entry->migrate_pfn,
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__entry->free_pfn,
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__entry->zone_end,
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__entry->sync ? "sync" : "async")
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);
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TRACE_EVENT(mm_compaction_end,
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TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn,
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unsigned long free_pfn, unsigned long zone_end, bool sync,
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int status),
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TP_ARGS(zone_start, migrate_pfn, free_pfn, zone_end, sync, status),
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TP_STRUCT__entry(
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__field(unsigned long, zone_start)
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__field(unsigned long, migrate_pfn)
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__field(unsigned long, free_pfn)
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__field(unsigned long, zone_end)
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__field(bool, sync)
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__field(int, status)
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),
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TP_fast_assign(
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__entry->zone_start = zone_start;
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__entry->migrate_pfn = migrate_pfn;
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__entry->free_pfn = free_pfn;
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__entry->zone_end = zone_end;
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__entry->sync = sync;
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__entry->status = status;
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),
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TP_printk("zone_start=0x%lx migrate_pfn=0x%lx free_pfn=0x%lx zone_end=0x%lx, mode=%s status=%s",
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__entry->zone_start,
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__entry->migrate_pfn,
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__entry->free_pfn,
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__entry->zone_end,
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__entry->sync ? "sync" : "async",
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__print_symbolic(__entry->status, COMPACTION_STATUS))
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);
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TRACE_EVENT(mm_compaction_try_to_compact_pages,
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TP_PROTO(
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int order,
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gfp_t gfp_mask,
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int prio),
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TP_ARGS(order, gfp_mask, prio),
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TP_STRUCT__entry(
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__field(int, order)
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__field(gfp_t, gfp_mask)
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__field(int, prio)
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),
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TP_fast_assign(
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__entry->order = order;
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__entry->gfp_mask = gfp_mask;
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__entry->prio = prio;
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),
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TP_printk("order=%d gfp_mask=0x%x priority=%d",
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__entry->order,
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__entry->gfp_mask,
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__entry->prio)
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);
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DECLARE_EVENT_CLASS(mm_compaction_suitable_template,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(enum zone_type, idx)
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__field(int, order)
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__field(int, ret)
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),
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TP_fast_assign(
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__entry->nid = zone_to_nid(zone);
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__entry->idx = zone_idx(zone);
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__entry->order = order;
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__entry->ret = ret;
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),
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TP_printk("node=%d zone=%-8s order=%d ret=%s",
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__entry->nid,
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__print_symbolic(__entry->idx, ZONE_TYPE),
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__entry->order,
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__print_symbolic(__entry->ret, COMPACTION_STATUS))
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);
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DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_finished,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret)
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);
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DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_suitable,
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TP_PROTO(struct zone *zone,
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int order,
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int ret),
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TP_ARGS(zone, order, ret)
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);
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#ifdef CONFIG_COMPACTION
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DECLARE_EVENT_CLASS(mm_compaction_defer_template,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(enum zone_type, idx)
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__field(int, order)
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__field(unsigned int, considered)
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__field(unsigned int, defer_shift)
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__field(int, order_failed)
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),
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TP_fast_assign(
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__entry->nid = zone_to_nid(zone);
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__entry->idx = zone_idx(zone);
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__entry->order = order;
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__entry->considered = zone->compact_considered;
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__entry->defer_shift = zone->compact_defer_shift;
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__entry->order_failed = zone->compact_order_failed;
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),
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TP_printk("node=%d zone=%-8s order=%d order_failed=%d consider=%u limit=%lu",
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__entry->nid,
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__print_symbolic(__entry->idx, ZONE_TYPE),
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__entry->order,
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__entry->order_failed,
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__entry->considered,
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1UL << __entry->defer_shift)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_deferred,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_defer_compaction,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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DEFINE_EVENT(mm_compaction_defer_template, mm_compaction_defer_reset,
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TP_PROTO(struct zone *zone, int order),
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TP_ARGS(zone, order)
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);
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#endif
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TRACE_EVENT(mm_compaction_kcompactd_sleep,
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TP_PROTO(int nid),
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TP_ARGS(nid),
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TP_STRUCT__entry(
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__field(int, nid)
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),
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TP_fast_assign(
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__entry->nid = nid;
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),
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TP_printk("nid=%d", __entry->nid)
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);
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DECLARE_EVENT_CLASS(kcompactd_wake_template,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx),
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TP_STRUCT__entry(
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__field(int, nid)
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__field(int, order)
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__field(enum zone_type, classzone_idx)
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),
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TP_fast_assign(
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__entry->nid = nid;
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__entry->order = order;
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__entry->classzone_idx = classzone_idx;
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),
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TP_printk("nid=%d order=%d classzone_idx=%-8s",
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__entry->nid,
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__entry->order,
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__print_symbolic(__entry->classzone_idx, ZONE_TYPE))
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);
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DEFINE_EVENT(kcompactd_wake_template, mm_compaction_wakeup_kcompactd,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx)
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);
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DEFINE_EVENT(kcompactd_wake_template, mm_compaction_kcompactd_wake,
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TP_PROTO(int nid, int order, enum zone_type classzone_idx),
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TP_ARGS(nid, order, classzone_idx)
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);
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#endif /* _TRACE_COMPACTION_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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